Hypertriton Production in p-Pb Collisions at √sNN = 5.02 TeV

The study of nuclei and antinuclei production has proven to be a powerful tool to investigate the formation mechanism of loosely bound states in high-energy hadronic collisions. The first measurement of the production of ${\rm ^{3}_{\Lambda}\rm H}$ in p-Pb collisions at $\sqrt{s_{\rm{NN}}}$ = 5.02 TeV is presented in this Letter. Its production yield measured in the rapidity interval -1 < y < 0 for the 40% highest multiplicity p-Pb collisions is ${\rm d} N /{\rm d} y =[\mathrm{6.3 \pm 1.8 (stat.) \pm 1.2 (syst.) ] \times 10^{-7}}$. The measurement is compared with the expectations of statistical hadronisation and coalescence models, which describe the nucleosynthesis in hadronic collisions. These two models predict very different yields of the hypertriton in small collision systems such as p-Pb and therefore the measurement of ${\rm d} N /{\rm d} y$ is crucial to distinguish between them. The precision of this measurement leads to the exclusion with a significance larger than 6$\sigma$ of some configurations of the statistical hadronisation, thus constraining the production mechanism of loosely bound states

Measurement of the non-prompt D-meson fraction as a function of multiplicity in proton-proton collisions at s \sqrt{s} = 13 TeV

The fractions of non-prompt (i.e. originating from beauty-hadron decays) D0 and D+ mesons with respect to the inclusive yield are measured as a function of the charged-particle multiplicity in proton-proton collisions at a centre-of-mass energy of √s = 13 TeV with the ALICE detector at the LHC. The results are reported in intervals of transverse momentum (pT) and integrated in the range 1 < pT < 24 GeV/c. The fraction of non-prompt D0 and D+ mesons is found to increase slightly as a function of pT in all the measured multiplicity intervals, while no significant dependence on the charged- particle multiplicity is observed. In order to investigate the production and hadronisation mechanisms of charm and beauty quarks, the results are compared to PYTHIA 8 as well as EPOS 3 and EPOS 4 Monte Carlo simulations, and to calculations based on the colour glass condensate including three-pomeron fusion

K0SK0S and K0SK± femtoscopy in pp collisions at √s = 5.02 and 13 TeV

Femtoscopic correlations with the particle pair combinations (KSKS0)-K-0 and (KSK +/-)-K-0 are studied in pp collisions at root s= 5.02 and 13 TeV by the ALICE experiment. At both energies, boson source parameters are extracted for both pair combinations, by fitting models based on Gaussian size distributions of the sources, to the measured two-particle correlation functions. The interaction model used for the (KSKS0)-K-0 analysis includes quantum statistics and strong final-state interactions through the f(0) (980) and a(0) (980) resonances. The model used for the (KSK +/-)-K-0 analysis includes only the final-state interaction through the a(0) resonance. Source parameters extracted in the present work are compared with published values from pp collisions at root s = 7 TeV and the different pair combinations are found to be consistent. From the observation that the strength of the (KSKS0)-K-0 correlations is significantly greater than the strength of the (KSK +/-)-K-0 correlations, the new results are compatible with the a(0) resonance being a tetraquark state of the form (q(1), (q(2)) over bar, s, (s) over bar), where q(1) and q(2) are uor d quarks. (C) 2022 European Organization for Nuclear Research, ALICE. Published by Elsevier B.V

Characterizing the initial conditions of heavy-ion collisions at the LHC with mean transverse momentum and anisotropic flow correlations

Correlations between mean transverse momentum and anisotropic flow coefficients or are measured as a function of centrality in Pb–Pb and Xe–Xe collisions at sqrt(sNN) = 5.02 TeV and 5.44 TeV, respectively, with ALICE. In addition, the recently proposed higher-order correlation between [pt], v2, and v3 is measured for the first time, which shows an anticorrelation for the presented centrality ranges. These measurements are compared with hydrodynamic calculations using IP-Glasma and TRENTO initial-state shapes, the former based on the Color Glass Condensate effective theory with gluon saturation, and the latter a parameterized model with nucleons as the relevant degrees of freedom. The data are better described by the IP-Glasma rather than the TRENTO based calculations. In particular, Trajectum and JETSCAPE predictions, both based on the TRENTO initial state model but with different parameter settings, fail to describe the measurements. As the correlations between [pt] and vn are mainly driven by the correlations of the size and the shape of the system in the initial state, these new studies pave a novel way to characterize the initial state and help pin down the uncertainty of the extracted properties of the quark–gluon plasma recreated in relativistic heavy-ion collisions

General balance functions of identified charged hadron pairs of (pi,K,p) in Pb-Pb collisions at 2.76 TeV

First measurements of balance functions (BFs) of all combinations of identified charged hadron ( π , K, p) pairs in Pb–Pb collisions at √sNN = 2.76 TeV recorded by the ALICE detector are presented. The BF measurements are carried out as two-dimensional differential correlators versus the relative rapidity (delta-y) and azimuthal angle (delta-φ) of hadron pairs, and studied as a function of collision centrality. The delta-φ dependence of BFs is expected to be sensitive to the light quark diffusivity in the quark–gluon plasma. While the BF azimuthal widths of all pairs substantially decrease from peripheral to central collisions, the longitudinal widths exhibit mixed behaviors: BFs of π π and cross-species pairs narrow significantly in more central collisions, whereas those of KK and pp are found to be independent of collision centrality. This dichotomy is qualitatively consistent with the presence of strong radial flow effects and the existence of two stages of quark production in relativistic heavy-ion collisions. Finally, the first measurements of the collision centrality evolution of BF integrals are presented, with the observation that charge balancing fractions are nearly independent of collision centrality in Pb–Pb collisions. Overall, the results presented provide new and challenging constraints for theoretical models of hadron production and transport in relativistic heavy-ion collisions

K∗(892)0 and φ(1020) production in p-Pb collisions at √s NN = 8.16 TeV

The production of K*(892)(0) and phi(1020) resonances has been measured in p-Pb collisions at root s(NN) = 8.16 TeV using the ALICE detector. Resonances are reconstructed via their hadronic decay channels in the rapidity interval -0.5 8 GeV/c), the R-pPb values of all hadrons are consistent with unity within uncertainties. The R-pPb of K*(892)(0) and phi(1020) at root s(NN) = 8.16 and 5.02 TeV show no significant energy dependence

Inclusive and multiplicity dependent production of electrons from heavy-flavour hadron decays in pp and p-Pb collisions

Measurements of the production of electrons from heavy-flavour hadron decays in pp collisions at root s = 13 TeV at midrapidity with the ALICE detector are presented down to a transverse momentum (p(T)) of 0.2 GeV/c and up to p(T) = 35 GeV/c, which is the largest momentum range probed for inclusive electron measurements in ALICE. In p-Pb collisions, the production cross section and the nuclear modification factor of electrons from heavy-flavour hadron decays are measured in the p(T) range 0.5 < p(T) < 26 GeV/c at root s(NN) = 8.16 TeV. The nuclear modification factor is found to be consistent with unity within the statistical and systematic uncertainties. In both collision systems, first measurements of the yields of electrons from heavy-flavour hadron decays in different multiplicity intervals normalised to the multiplicity-integrated yield (self-normalised yield) at midrapidity are reported as a function of the self-normalised charged-particle multiplicity estimated at midrapidity. The self-normalised yields in pp and p-Pb collisions grow faster than linear with the self-normalised multiplicity. A strong p(T) dependence is observed in pp collisions, where the yield of high-p(T) electrons increases faster as a function of multiplicity than the one of low-p(T) electrons. The measurement in p-Pb collisions shows no p(T) dependence within uncertainties. The self-normalised yields in pp and p-Pb collisions are compared with measurements of other heavy-flavour, light-flavour, and strange particles, and with Monte Carlo simulations

Charm-quark fragmentation fractions and production cross section at midrapidity in pp collisions at the LHC

none1022siRecent p(T)-integrated cross-section measurements of the ground-state charm mesons and baryons, D-0, D+, D-s(+), Lambda(+)(c), and Xi(0)(c) are used to evaluate the charm fragmentation fractions and production cross section per unit of rapidity at midrapidity (vertical bar y vertical bar )/dy vertical bar(vertical bar y vertical bar<0.5) = 1165 +/- 44(stat)(-101)(+131) (syst) mu b. These measurements were obtained for the first time in hadronic collisions at the LHC, including the charm baryon states, recently measured by ALICE at midrapidity. The charm fragmentation fractions differ significantly from the values measured in e(+)e(-) and ep collisions, providing evidence of the dependence of the parton-to-hadron fragmentation fractions on the collision system, indicating that the assumption of their universality is not supported by the measured cross sections. An increase of a factor of about 3.3 for the fragmentation fraction for the Lambda(+)(c) with a significance of 5 sigma between the values obtained in pp collisions and those obtained in e(+)e(-) (ep) collisions is reported. The fragmentation fraction for the Xi(0)(c) was obtained for the first time in any collision system. The measured fragmentation fractions were used to update the c (c) over bar cross sections per unit of rapidity at vertical bar y vertical bar < 0.5 at root s = 2.76 and 7 TeV, which are about 40% higher than the previously published results. The data were compared with perturbative-QCD calculations and lie at the upper edge of the theoretical bands.noneAcharya, S.; Adamova, D.; Adler, A.; Adolfsson, J.; Rinella, G. Aglieri; Agnello, M.; Agrawal, N.; Ahammed, Z.; Ahmad, S.; Ahn, S. U.; Ahuja, I; Akbar, Z.; Akindinov, A.; Al-Turany, M.; Alam, S. N.; Aleksandrov, D.; Alessandro, B.; Alfanda, H. M.; Alfaro Molina, R.; Ali, B.; Ali, Y.; Alici, A.; Alizadehvandchali, N.; Alkin, A.; Alme, J.; Alt, T.; Altenkamper, L.; Altsybeev, I; Anaam, M. N.; Andrei, C.; Andreou, D.; Andronic, A.; Angeletti, M.; Anguelov, V; Antinori, F.; Antonioli, P.; Anuj, C.; Apadula, N.; Aphecetche, L.; Appelshaeuser, H.; Arcelli, S.; Arnaldi, R.; Arsene, I. C.; Arslandok, M.; Augustinus, A.; Averbeck, R.; Aziz, S.; Azmi, M. D.; Badala, A.; Baek, Y. W.; Bai, X.; Bailhache, R.; Bailung, Y.; Bala, R.; Balbino, A.; Baldisseri, A.; Balis, B.; Ball, M.; Banerjee, D.; Barbera, R.; Barioglio, L.; Barlou, M.; Barnafoldi, G. G.; Barnby, L. S.; Barret, V; Bartels, C.; Barth, K.; Bartsch, E.; Baruffaldi, F.; Bastid, N.; Basu, S.; Batigne, G.; Batyunya, B.; Bauri, D.; Alba, J. L. Bazo; Bearden, I. G.; Beattie, C.; Belikov, I; Hechavarria, A. D. C. Bell; Bellini, F.; Bellwied, R.; Belokurova, S.; Belyaev, V; Bencedi, G.; Beole, S.; Bercuci, A.; Berdnikov, Y.; Berdnikova, A.; Berenyi, D.; Bergmann, L.; Besoiu, M. G.; Betev, L.; Bhaduri, P. P.; Bhasin, A.; Bhat, M. A.; Bhattacharjee, B.; Bhattacharya, P.; Bianchi, L.; Bianchi, N.; Biernat, J.; Bilandzic, A.; Biro, G.; Biswas, S.; Blair, J. T.; Blau, D.; Blidaru, M. B.; Blume, C.; Boca, G.; Bock, F.; Bogdanov, A.; Boi, S.; Bok, J.; Boldizsar, L.; Bolozdynya, A.; Bombara, M.; Bond, P. M.; Bonomi, G.; Borel, H.; Borissov, A.; Bossi, H.; Botta, E.; Bratrud, L.; Braun-Munzinger, P.; Bregant, M.; Broz, M.; Bruno, G. E.; Buckland, M. D.; Budnikov, D.; Buesching, H.; Bufalino, S.; Bugnon, O.; Buhler, P.; Buthelezi, Z.; Butt, J. B.; Bysiak, S. A.; Caffarri, D.; Cai, M.; Caines, H.; Caliva, A.; Calvo Villar, E.; Camacho, J. M. M.; Camacho, R. S.; Camerini, P.; Canedo, F. D. M.; Carnesecchi, F.; Caron, R.; Castellanos, J. Castillo; Casula, E. A. R.; Catalano, F.; Sanchez, C. Ceballos; Chakraborty, P.; Chandra, S.; Chapeland, S.; Chartier, M.; Chattopadhyay, S.; Chattopadhyay, S.; Chauvin, A.; Chavez, T. G.; Cheshkov, C.; Cheynis, B.; Barroso, V. Chibante; Chinellato, D. D.; Cho, S.; Chochula, P.; Christakoglou, P.; Christensen, C. H.; Christiansen, P.; Chujo, T.; Cicalo, C.; Cifarelli, L.; Cindolo, F.; Ciupek, M. R.; Clai, G.; Cleymans, J.; Colamaria, F.; Colburn, J. S.; Colella, D.; Collu, A.; Colocci, M.; Concas, M.; Balbastre, G. Conesa; del Valle, Z. Conesa; Contin, G.; Contreras, J. G.; Coquet, M. L.; Cormier, T. M.; Cortese, P.; Cosentino, M. R.; Costa, F.; Costanza, S.; Crochet, P.; Cuautle, E.; Cui, P.; Cunqueiro, L.; Dainese, A.; Damas, F. P. A.; Danisch, M. C.; Danu, A.; Das, I; Das, P.; Das, P.; Das, S.; Dash, S.; De, S.; De Caro, A.; de Cataldo, G.; De Cilladi, L.; de Cuveland, J.; De Falco, A.; De Gruttola, D.; De Marco, N.; De Martin, C.; De Pasquale, S.; Deb, S.; Degenhardt, H. F.; Deja, K. R.; Dello Stritto, L.; Delsanto, S.; Deng, W.; Dhankher, P.; Di Bari, D.; Di Mauro, A.; Diaz, R. A.; Dietel, T.; Ding, Y.; Divia, R.; Djuvsland, O.; Dixit, D. U.; Dmitrieva, U.; Do, J.; Dobrin, A.; Donigus, B.; Dordic, O.; Dubey, A. K.; Dubla, A.; Dudi, S.; Dukhishyam, M.; Dupieux, P.; Dzalaiova, N.; Eder, T. M.; Ehlers, R. J.; Eikeland, V. N.; Elia, D.; Erazmus, B.; Ercolessi, F.; Erhardt, F.; Erokhin, A.; Ersdal, M. R.; Espagnon, B.; Eulisse, G.; Evans, D.; Evdokimov, S.; Fabbietti, L.; Faggin, M.; Faivre, J.; Fan, F.; Fantoni, A.; Fasel, M.; Fecchio, P.; Feliciello, A.; Feofilov, G.; Fernandez Tellez, A.; Ferrero, A.; Ferretti, A.; Feuillard, V. J. G.; Figiel, J.; Filchagin, S.; Finogeev, D.; Fionda, F. M.; Fiorenza, G.; Flor, F.; Flores, A. N.; Foertsch, S.; Foka, P.; Fokin, S.; Fragiacomo, E.; Frajna, E.; Fuchs, U.; Funicello, N.; Furget, C.; Furs, A.; Gaardhoje, J. J.; Gagliardi, M.; Gago, A. M.; Gal, A.; Galvan, C. D.; Ganoti, P.; Garabatos, C.; Garcia, J. R. A.; Garcia-Solis, E.; Garg, K.; Gargiulo, C.; Garibli, A.; Garner, K.; Gasik, P.; Gauger, E. F.; Gautam, A.; Ducati, M. B. Gay; Germain, M.; Ghosh, J.; Ghosh, P.; Ghosh, S. K.; Giacalone, M.; Gianotti, P.; Giubellino, P.; Giubilato, P.; Glaenzer, A. M. C.; Glassel, P.; Goh, D. J. Q.; Gonzalez, V; Gonzalez-Trueba, L. H.; Gorbunov, S.; Gorgon, M.; Gorlich, L.; Gotovac, S.; Grabski, V; Graczykowski, L. K.; Greiner, L.; Grelli, A.; Grigoras, C.; Grigoriev, V; Grigoryan, A.; Grigoryan, S.; Groettvik, O. S.; Grosa, F.; Grosse-Oetringhaus, J. F.; Grosso, R.; Guardiano, G. G.; Guernane, R.; Guilbaud, M.; Gulbrandsen, K.; Gunji, T.; Gupta, A.; Gupta, R.; Guzman, S. P.; Gyulai, L.; Habib, M. K.; Hadjidakis, C.; Halimoglu, G.; Hamagaki, H.; Hamar, G.; Hamid, M.; Hannigan, R.; Haque, M. R.; Harlenderova, A.; Harris, J. W.; Harton, A.; Hasenbichler, J. A.; Hassan, H.; Hatzifotiadou, D.; Hauer, P.; Havener, L. B.; Hayashi, S.; Heckel, S. T.; Hellbar, E.; Helstrup, H.; Herman, T.; Hernandez, E. G.; Herrera Corral, G.; Herrmann, F.; Hetland, K. F.; Hillemanns, H.; Hills, C.; Hippolyte, B.; Hofman, B.; Hohlweger, B.; Honermann, J.; Hong, G. H.; Horak, D.; Hornung, S.; Horzyk, A.; Hosokawa, R.; Hristov, P.; Huang, C.; Hughes, C.; Huhn, P.; Humanic, T. J.; Hushnud, H.; Husova, L. A.; Hutson, A.; Hutter, D.; Iddon, J. P.; Ilkaev, R.; Ilyas, H.; Inaba, M.; Innocenti, G. M.; Ippolitov, M.; Isakov, A.; Islam, M. S.; Ivanov, M.; Ivanov, V; Izucheev, V; Jablonski, M.; Jacak, B.; Jacazio, N.; Jacobs, P. M.; Jadlovska, S.; Jadlovsky, J.; Jaelani, S.; Jahnke, C.; Jakubowska, M. J.; Jalotra, A.; Janik, M. A.; Janson, T.; Jercic, M.; Jevons, O.; Jonas, F.; Jones, P. G.; Jowett, J. M.; Jung, J.; Jung, M.; Junique, A.; Jusko, A.; Kaewjai, J.; Kalinak, P.; Kalweit, A.; Kaplin, V; Kar, S.; Uysal, A. Karasu; Karatovic, D.; Karavichev, O.; Karavicheva, T.; Karczmarczyk, P.; Karpechev, E.; Kazantsev, A.; Kebschull, U.; Keidel, R.; Keijdener, D. L. D.; Keil, M.; Ketzer, B.; Khabanova, Z.; Khan, A. M.; Khan, S.; Khanzadeev, A.; Kharlov, Y.; Khatun, A.; Khuntia, A.; Kileng, B.; Kim, B.; Kim, C.; Kim, D.; Kim, D. J.; Kim, E. J.; Kim, J.; Kim, J. S.; Kim, J.; Kim, J.; Kim, J.; Kim, M.; Kim, S.; Kim, T.; Kirsch, S.; Kisel, I; Kiselev, S.; Kisiel, A.; Kitowski, J. P.; Klay, J. L.; Klein, J.; Klein, S.; Klein-Bosing, C.; Kleiner, M.; Klemenz, T.; Kluge, A.; Knospe, A. G.; Kobdaj, C.; Kohler, M. K.; Kollegger, T.; Kondratyev, A.; Kondratyeva, N.; Kondratyuk, E.; Konig, J.; Konigstorfer, S. A.; Konopka, P. J.; Kornakov, G.; Koryciak, S. D.; Koska, L.; Kotliarov, A.; Kovalenko, O.; Kovalenko, V; Kowalski, M.; Kralik, I; Kreis, L.; Krivda, M.; Krizek, F.; Gajdosova, K. Krizkova; Kroesen, M.; Kruger, M.; Kryshen, E.; Krzewicki, M.; Kuhn, C.; Kuijer, P. G.; Kumaoka, T.; Kumar, D.; Kumar, L.; Kumar, N.; Kundu, S.; Kurashvili, P.; Kurepin, A.; Kurepin, A. B.; Kuryakin, A.; Kushpil, S.; Kvapil, J.; Kweon, M. J.; Kwon, J. Y.; Kwon, Y.; La Pointe, S. L.; La Rocca, P.; Lai, Y. S.; Lakrathok, A.; Lamanna, M.; Langoy, R.; Lapidus, K.; Larionov, P.; Laudi, E.; Lautner, L.; Lavicka, R.; Lazareva, T.; Lea, R.; Lehrbach, J.; Lemmon, R. C.; Monzon, I. Leon; Lesser, E. D.; Lettrich, M.; Levai, P.; Li, X.; Li, X. L.; Lien, J.; Lietava, R.; Lim, B.; Lim, S. H.; Lindenstruth, V; Lindner, A.; Lippmann, C.; Liu, A.; Liu, J.; Lofnes, I. M.; Loginov, V; Loizides, C.; Loncar, P.; Lopez, J. A.; Lopez, X.; Lopez Torres, E.; Luhder, J. R.; Lunardon, M.; Luparello, G.; Ma, Y. G.; Maevskaya, A.; Mager, M.; Mahmoud, T.; Maire, A.; Malaev, M.; Malik, N. M.; Malik, Q. W.; Malinina, L.; Mal'Kevich, D.; Mallick, N.; Malzacher, P.; Mandaglio, G.; Manko, V; Manso, F.; Manzari, V; Mao, Y.; Mares, J.; Margagliotti, G., V; Margotti, A.; Marin, A.; Markert, C.; Marquard, M.; Martin, N. A.; Martinengo, P.; Martinez, J. L.; Martinez, M., I; Garcia, G. Martinez; Masciocchi, S.; Masera, M.; Masoni, A.; Massacrier, L.; Mastroserio, A.; Mathis, A. M.; Matonoha, O.; Matuoka, P. F. T.; Matyja, A.; Mayer, C.; Mazuecos, A. L.; Mazzaschi, F.; Mazzilli, M.; Mazzoni, M. A.; Mdhluli, J. E.; Mechler, A. F.; Meddi, F.; Melikyan, Y.; Menchaca-Rocha, A.; Meninno, E.; Menon, A. S.; Meres, M.; Mhlanga, S.; Miake, Y.; Micheletti, L.; Migliorin, L. C.; Mihaylov, D. L.; Mikhaylov, K.; Mishra, A. N.; Modak, A.; Mohanty, A. P.; Mohanty, B.; Khan, M. Mohisin; Moravcova, Z.; Mordasini, C.; De Godoy, D. A. Moreira; Moreno, L. A. P.; Morozov, I; Morsch, A.; Mrnjavac, T.; Muccifora, V; Mudnic, E.; Muhlheim, D.; Muhuri, S.; Mulligan, J. D.; Mulliri, A.; Munhoz, M. G.; Munzer, R. H.; Murakami, H.; Murray, S.; Musa, L.; Musinsky, J.; Myrcha, J. W.; Naik, B.; Nair, R.; Nandi, B. K.; Nania, R.; Nappi, E.; Naru, M. U.; Nassirpour, A. F.; Nath, A.; Nattrass, C.; Neagu, A.; Nellen, L.; Nesbo, S., V; Neskovic, G.; Nesterov, D.; Nielsen, B. S.; Nikolaev, S.; Nikulin, S.; Nikulin, V; Noferini, F.; Noh, S.; Nomokonov, P.; Norman, J.; Novitzky, N.; Nowakowski, P.; Nyanin, A.; Nystrand, J.; Ogino, M.; Ohlson, A.; Okorokov, V. A.; Oleniacz, J.; Da Silva, A. C. Oliveira; Oliver, M. H.; Onnerstad, A.; Oppedisano, C.; Velasquez, A. Ortiz; Osako, T.; Oskarsson, A.; Otwinowski, J.; Oyama, K.; Pachmayer, Y.; Padhan, S.; Pagano, D.; Palasciano, A.; Pan, J.; Panebianco, S.; Pareek, P.; Park, J.; Parkkila, J. E.; Pathak, S. P.; Patra, R. N.; Paul, B.; Pazzini, J.; Pei, H.; Peitzmann, T.; Peng, X.; Pereira, L. G.; Da Costa, H. Pereira; Peresunko, D.; Perez, G. M.; Perrin, S.; Pestov, Y.; Petrovici, M.; Pezzi, R. P.; Piano, S.; Pikna, M.; Pillot, P.; Pinazza, O.; Pinsky, L.; Pinto, C.; Pisano, S.; Planinic, M.; Pliquett, F.; Poghosyan, M. G.; Polichtchouk, B.; Politano, S.; Poljak, N.; Pop, A.; Porteboeuf-Houssais, S.; Porter, J.; Pozdniakov, V; Prasad, S. K.; Preghenella, R.; Prino, F.; Pruneau, C. A.; Pshenichnov, I; Puccio, M.; Qiu, S.; Quaglia, L.; Quishpe, R. E.; Ragoni, S.; Rakotozafindrabe, A.; Ramello, L.; Rami, F.; Ramirez, S. A. R.; Ramos, A. G. T.; Rancien, T. A.; Raniwala, R.; Raniwala, S.; Rasanen, S. S.; Rath, R.; Ravasenga, I; Read, K. F.; Redelbach, A. R.; Redlich, K.; Rehman, A.; Reichelt, P.; Reidt, F.; Reme-ness, H. A.; Renfordt, R.; Rescakova, Z.; Reygers, K.; Riabov, A.; Riabov, V; Richert, T.; Richter, M.; Riegler, W.; Riggi, F.; Ristea, C.; Rode, S. P.; Rodriguez Cahuantzi, M.; Roed, K.; Rogalev, R.; Rogochaya, E.; Rogoschinski, T. S.; Rohr, D.; Rohrich, D.; Rojas, P. F.; Rokita, P. S.; Ronchetti, F.; Rosano, A.; Rosas, E. D.; Rossi, A.; Rotondi, A.; Roy, A.; Roy, P.; Roy, S.; Rubini, N.; Rueda, O., V; Rui, R.; Rumyantsev, B.; Russek, P. G.; Rustamov, A.; Ryabinkin, E.; Ryabov, Y.; Rybicki, A.; Rytkonen, H.; Rzesa, W.; Saarimaki, O. A. M.; Sadek, R.; Sadovsky, S.; Saetre, J.; Saha, S. K.; Saha, S.; Sahoo, B.; Sahoo, P.; Sahoo, R.; Sahoo, S.; Sahu, D.; Sahu, P. K.; Saini, J.; Sakai, S.; Sambyal, S.; Samsonov, V; Sarkar, D.; Sarkar, N.; Sarma, P.; Sarti, V. M.; Sas, M. H. P.; Schambach, J.; Scheid, H. S.; Schiaua, C.; Schicker, R.; Schmah, A.; Schmidt, C.; Schmidt, H. R.; Schmidt, M. O.; Schmidt, M.; Schmidt, N., V; Schmier, A. R.; Schotter, R.; Schukraft, J.; Schutz, Y.; Schwarz, K.; Schweda, K.; Scioli, G.; Scomparin, E.; Seger, J. E.; Sekiguchi, Y.; Sekihata, D.; Selyuzhenkov, I; Senyukov, S.; Seo, J. J.; Serebryakov, D.; Sevcenco, A.; Shaba, T. J.; Shabanov, A.; Shabetai, A.; Shahoyan, R.; Shaikh, W.; Shangaraev, A.; Sharma, A.; Sharma, H.; Sharma, M.; Sharma, N.; Sharma, S.; Sharma, U.; Sheibani, O.; Shigaki, K.; Shimomura, M.; Shirinkin, S.; Shou, Q.; Sibiriak, Y.; Siddhanta, S.; Siemiarczuk, T.; Silva, T. F.; Silvermyr, D.; Simonetti, G.; Singh, B.; Singh, R.; Singh, R.; Singh, R.; Singh, V. K.; Singhal, V; Sinha, T.; Sitar, B.; Sitta, M.; Skaali, T. B.; Skorodumovs, G.; Slupecki, M.; Smirnov, N.; Snellings, R. J. M.; Soncco, C.; Song, J.; Songmoolnak, A.; Soramel, F.; Sorensen, S.; Sputowska, I; Stachel, J.; Stan, I; Steffanic, P. J.; Stiefelmaier, S. F.; Stocco, D.; Storehaug, I; Storetvedt, M. M.; Stylianidis, C. P.; Suaide, A. A. P.; Sugitate, T.; Suire, C.; Suljic, M.; Sultanov, R.; Sumbera, M.; Sumberia, V; Sumowidagdo, S.; Swain, S.; Szabo, A.; Szarka, I; Tabassam, U.; Taghavi, S. F.; Taillepied, G.; Takahashi, J.; Tambave, G. J.; Tang, S.; Tang, Z.; Tarhini, M.; Tarzila, M. G.; Tauro, A.; Tejeda Munoz, G.; Telesca, A.; Terlizzi, L.; Terrevoli, C.; Tersimonov, G.; Thakur, S.; Thomas, D.; Tieulent, R.; Tikhonov, A.; Timmins, A. R.; Tkacik, M.; Toia, A.; Topilskaya, N.; Toppi, M.; Torales-Acosta, F.; Tork, T.; Torres, R. C.; Torres, S. R.; Trifiro, A.; Tripathy, S.; Tripathy, T.; Trogolo, S.; Trombetta, G.; Trubnikov, V; Trzaska, W. H.; Trzcinski, T. P.; Trzeciak, B. A.; Tumkin, A.; Turrisi, R.; Tveter, T. S.; Ullaland, K.; Uras, A.; Urioni, M.; Usai, G. L.; Vala, M.; Valle, N.; Vallero, S.; van der Kolk, N.; van Doremalen, L. V. R.; van Leeuwen, M.; Vande Vyvre, P.; Varga, D.; Varga, Z.; Varga-Kofarago, M.; Vargas, A.; Vasileiou, M.; Vasiliev, A.; Doce, O. Vazquez; Vechernin, V.; Vercellin, E.; Vergara Limon, S.; Vermunt, L.; Vertesi, R.; Verweij, M.; Vickovic, L.; Vilakazi, Z.; Baillie, O. Villalobos; Vino, G.; Vinogradov, A.; Virgili, T.; Vislavicius, V.; Vodopyanov, A.; Volkel, B.; Volkl, M. A.; Voloshin, K.; Voloshin, S. A.; Volpe, G.; von Haller, B.; Vorobyev, I; Voscek, D.; Vozniuk, N.; Vrlakova, J.; Wagner, B.; Wang, C.; Wang, D.; Weber, M.; Weelden, R. J. G., V; Wegrzynek, A.; Wenzel, S. C.; Wessels, J. P.; Wiechula, J.; Wikne, J.; Wilk, G.; Wilkinson, J.; Willems, G. A.; Windelband, B.; Winn, M.; Witt, W. E.; Wright, J. R.; Wu, W.; Wu, Y.; Xu, R.; Yalcin, S.; Yamaguchi, Y.; Yamakawa, K.; Yang, S.; Yano, S.; Yin, Z.; Yokoyama, H.; Yoo, I-K; Yoon, J. H.; Yuan, S.; Yuncu, A.; Zaccolo, V; Zaman, A.; Zampolli, C.; Zanoli, H. J. C.; Zardoshti, N.; Zarochentsev, A.; Zavada, P.; Zaviyalov, N.; Zbroszczyk, H.; Zhalov, M.; Zhang, S.; Zhang, X.; Zhang, Y.; Zherebchevskii, V; Zhi, Y.; Zhou, D.; Zhou, Y.; Zhu, J.; Zhu, Y.; Zichichi, A.; Zinovjev, G.; Zurlo, N.Acharya, S.; Adamova, D.; Adler, A.; Adolfsson, J.; Rinella, G. Aglieri; Agnello, M.; Agrawal, N.; Ahammed, Z.; Ahmad, S.; Ahn, S. U.; Ahuja, I; Akbar, Z.; Akindinov, A.; Al-Turany, M.; Alam, S. N.; Aleksandrov, D.; Alessandro, B.; Alfanda, H. M.; Alfaro Molina, R.; Ali, B.; Ali, Y.; Alici, A.; Alizadehvandchali, N.; Alkin, A.; Alme, J.; Alt, T.; Altenkamper, L.; Altsybeev, I; Anaam, M. N.; Andrei, C.; Andreou, D.; Andronic, A.; Angeletti, M.; Anguelov, V; Antinori, F.; Antonioli, P.; Anuj, C.; Apadula, N.; Aphecetche, L.; Appelshaeuser, H.; Arcelli, S.; Arnaldi, R.; Arsene, I. C.; Arslandok, M.; Augustinus, A.; Averbeck, R.; Aziz, S.; Azmi, M. D.; Badala, A.; Baek, Y. W.; Bai, X.; Bailhache, R.; Bailung, Y.; Bala, R.; Balbino, A.; Baldisseri, A.; Balis, B.; Ball, M.; Banerjee, D.; Barbera, R.; Barioglio, L.; Barlou, M.; Barnafoldi, G. G.; Barnby, L. S.; Barret, V; Bartels, C.; Barth, K.; Bartsch, E.; Baruffaldi, F.; Bastid, N.; Basu, S.; Batigne, G.; Batyunya, B.; Bauri, D.; Alba, J. L. Bazo; Bearden, I. G.; Beattie, C.; Belikov, I; Hechavarria, A. D. C. Bell; Bellini, F.; Bellwied, R.; Belokurova, S.; Belyaev, V; Bencedi, G.; Beole, S.; Bercuci, A.; Berdnikov, Y.; Berdnikova, A.; Berenyi, D.; Bergmann, L.; Besoiu, M. G.; Betev, L.; Bhaduri, P. P.; Bhasin, A.; Bhat, M. A.; Bhattacharjee, B.; Bhattacharya, P.; Bianchi, L.; Bianchi, N.; Biernat, J.; Bilandzic, A.; Biro, G.; Biswas, S.; Blair, J. T.; Blau, D.; Blidaru, M. B.; Blume, C.; Boca, G.; Bock, F.; Bogdanov, A.; Boi, S.; Bok, J.; Boldizsar, L.; Bolozdynya, A.; Bombara, M.; Bond, P. M.; Bonomi, G.; Borel, H.; Borissov, A.; Bossi, H.; Botta, E.; Bratrud, L.; Braun-Munzinger, P.; Bregant, M.; Broz, M.; Bruno, G. E.; Buckland, M. D.; Budnikov, D.; Buesching, H.; Bufalino, S.; Bugnon, O.; Buhler, P.; Buthelezi, Z.; Butt, J. B.; Bysiak, S. A.; Caffarri, D.; Cai, M.; Caines, H.; Caliva, A.; Calvo Villar, E.; Camacho, J. M. M.; Camacho, R. S.; Camerini, P.; Canedo, F. D. M.; Carnesecchi, F.; Caron, R.; Castellanos, J. Castillo; Casula, E. A. R.; Catalano, F.; Sanchez, C. Ceballos; Chakraborty, P.; Chandra, S.; Chapeland, S.; Chartier, M.; Chattopadhyay, S.; Chattopadhyay, S.; Chauvin, A.; Chavez, T. G.; Cheshkov, C.; Cheynis, B.; Barroso, V. Chibante; Chinellato, D. D.; Cho, S.; Chochula, P.; Christakoglou, P.; Christensen, C. H.; Christiansen, P.; Chujo, T.; Cicalo, C.; Cifarelli, L.; Cindolo, F.; Ciupek, M. R.; Clai, G.; Cleymans, J.; Colamaria, F.; Colburn, J. S.; Colella, D.; Collu, A.; Colocci, M.; Concas, M.; Balbastre, G. Conesa; del Valle, Z. Conesa; Contin, G.; Contreras, J. G.; Coquet, M. L.; Cormier, T. M.; Cortese, P.; Cosentino, M. R.; Costa, F.; Costanza, S.; Crochet, P.; Cuautle, E.; Cui, P.; Cunqueiro, L.; Dainese, A.; Damas, F. P. A.; Danisch, M. C.; Danu, A.; Das, I; Das, P.; Das, P.; Das, S.; Dash, S.; De, S.; De Caro, A.; de Cataldo, G.; De Cilladi, L.; de Cuveland, J.; De Falco, A.; De Gruttola, D.; De Marco, N.; De Martin, C.; De Pasquale, S.; Deb, S.; Degenhardt, H. F.; Deja, K. R.; Dello Stritto, L.; Delsanto, S.; Deng, W.; Dhankher, P.; Di Bari, D.; Di Mauro, A.; Diaz, R. A.; Dietel, T.; Ding, Y.; Divia, R.; Djuvsland, O.; Dixit, D. U.; Dmitrieva, U.; Do, J.; Dobrin, A.; Donigus, B.; Dordic, O.; Dubey, A. K.; Dubla, A.; Dudi, S.; Dukhishyam, M.; Dupieux, P.; Dzalaiova, N.; Eder, T. M.; Ehlers, R. J.; Eikeland, V. N.; Elia, D.; Erazmus, B.; Ercolessi, F.; Erhardt, F.; Erokhin, A.; Ersdal, M. R.; Espagnon, B.; Eulisse, G.; Evans, D.; Evdokimov, S.; Fabbietti, L.; Faggin, M.; Faivre, J.; Fan, F.; Fantoni, A.; Fasel, M.; Fecchio, P.; Feliciello, A.; Feofilov, G.; Fernandez Tellez, A.; Ferrero, A.; Ferretti, A.; Feuillard, V. J. G.; Figiel, J.; Filchagin, S.; Finogeev, D.; Fionda, F. M.; Fiorenza, G.; Flor, F.; Flores, A. N.; Foertsch, S.; Foka, P.; Fokin, S.; Fragiacomo, E.; Frajna, E.; Fuchs, U.; Funicello, N.; Furget, C.; Furs, A.; Gaardhoje, J. J.; Gagliardi, M.; Gago, A. M.; Gal, A.; Galvan, C. D.; Ganoti, P.; Garabatos, C.; Garcia, J. R. A.; Garcia-Solis, E.; Garg, K.; Gargiulo, C.; Garibli, A.; Garner, K.; Gasik, P.; Gauger, E. F.; Gautam, A.; Ducati, M. B. Gay; Germain, M.; Ghosh, J.; Ghosh, P.; Ghosh, S. K.; Giacalone, M.; Gianotti, P.; Giubellino, P.; Giubilato, P.; Glaenzer, A. M. C.; Glassel, P.; Goh, D. J. Q.; Gonzalez, V; Gonzalez-Trueba, L. H.; Gorbunov, S.; Gorgon, M.; Gorlich, L.; Gotovac, S.; Grabski, V; Graczykowski, L. K.; Greiner, L.; Grelli, A.; Grigoras, C.; Grigoriev, V; Grigoryan, A.; Grigoryan, S.; Groettvik, O. S.; Grosa, F.; Grosse-Oetringhaus, J. F.; Grosso, R.; Guardiano, G. G.; Guernane, R.; Guilbaud, M.; Gulbrandsen, K.; Gunji, T.; Gupta, A.; Gupta, R.; Guzman, S. P.; Gyulai, L.; Habib, M. K.; Hadjidakis, C.; Halimoglu, G.; Hamagaki, H.; Hamar, G.; Hamid, M.; Hannigan, R.; Haque, M. R.; Harlenderova, A.; Harris, J. W.; Harton, A.; Hasenbichler, J. A.; Hassan, H.; Hatzifotiadou, D.; Hauer, P.; Havener, L. B.; Hayashi, S.; Heckel, S. T.; Hellbar, E.; Helstrup, H.; Herman, T.; Hernandez, E. G.; Herrera Corral, G.; Herrmann, F.; Hetland, K. F.; Hillemanns, H.; Hills, C.; Hippolyte, B.; Hofman, B.; Hohlweger, B.; Honermann, J.; Hong, G. H.; Horak, D.; Hornung, S.; Horzyk, A.; Hosokawa, R.; Hristov, P.; Huang, C.; Hughes, C.; Huhn, P.; Humanic, T. J.; Hushnud, H.; Husova, L. A.; Hutson, A.; Hutter, D.; Iddon, J. P.; Ilkaev, R.; Ilyas, H.; Inaba, M.; Innocenti, G. M.; Ippolitov, M.; Isakov, A.; Islam, M. S.; Ivanov, M.; Ivanov, V; Izucheev, V; Jablonski, M.; Jacak, B.; Jacazio, N.; Jacobs, P. M.; Jadlovska, S.; Jadlovsky, J.; Jaelani, S.; Jahnke, C.; Jakubowska, M. J.; Jalotra, A.; Janik, M. A.; Janson, T.; Jercic, M.; Jevons, O.; Jonas, F.; Jones, P. G.; Jowett, J. M.; Jung, J.; Jung, M.; Junique, A.; Jusko, A.; Kaewjai, J.; Kalinak, P.; Kalweit, A.; Kaplin, V; Kar, S.; Uysal, A. Karasu; Karatovic, D.; Karavichev, O.; Karavicheva, T.; Karczmarczyk, P.; Karpechev, E.; Kazantsev, A.; Kebschull, U.; Keidel, R.; Keijdener, D. L. D.; Keil, M.; Ketzer, B.; Khabanova, Z.; Khan, A. M.; Khan, S.; Khanzadeev, A.; Kharlov, Y.; Khatun, A.; Khuntia, A.; Kileng, B.; Kim, B.; Kim, C.; Kim, D.; Kim, D. J.; Kim, E. J.; Kim, J.; Kim, J. S.; Kim, J.; Kim, J.; Kim, J.; Kim, M.; Kim, S.; Kim, T.; Kirsch, S.; Kisel, I; Kiselev, S.; Kisiel, A.; Kitowski, J. P.; Klay, J. L

Production of and in collisions at

The production of K *(892)(0) and phi(1020) mesons in proton-proton (pp) and lead-lead (Pb-Pb) collisions at root s(NN) = 5.02 TeV has been measured using the ALICE detector at the Large Hadron Collider (LHC). The transverse momentum (p(T)) distributions of K*(892)(0) and phi(1020) mesons have been measured at midrapidity (vertical bar y vertical bar 8 GeV/c, the R-AA values of K *(892)(0) and phi(1020) are below unity and observed to be similar to those of pions, kaons, and (anti)protons. The R-AA values at high pT (>8 GeV/c) for K*(892)0 and f(1020) mesons are in agreement within uncertainties for root s(NN) = 5.02 and 2.76 TeV

First study of the two-body scattering involving charm hadrons

This article presents the first measurement of the interaction between charm hadrons and nucleons. The two-particle momentum correlations of pD− and p ̄Dþ pairs are measured by the ALICE Collaboration in pffiffi high-multiplicity pp collisions at s 1⁄4 13 TeV. The data are compatible with the Coulomb-only interaction hypothesis within ð1.1–1.5Þσ. The level of agreement slightly improves if an attractive nucleon ðNÞD ̄ strong interaction is considered, in contrast to most model predictions which suggest an overall repulsive interaction. This measurement allows for the first time an estimation of the 68% confidence level interval for the isospin I 1⁄4 0 inverse scattering length of the ND ̄ state f−1 ∈ 1⁄2−0.4; 0.9 fm−1, assuming 0;I1⁄40 negligible interaction for the isospin I 1⁄4 1 channel