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

Accessing the strong interaction between Λ baryons and charged kaons with the femtoscopy technique at the LHC

The interaction between Λ baryons and kaons/antikaons is a crucial ingredient for the strangeness S=0 and S=-2 sector of the meson–baryon interaction at low energies. In particular, the Lambda-Kbar might help in understanding the origin of states such as the Csi(1620), whose nature and properties are still under debate. Experimental data on Lambda-K and Lambda-Kbar systems are scarce, leading to large uncertainties and tension between the available theoretical predictions constrained by such data. In this Letter we present the measurements of Λ–KK− and Λ–KK+ correlations obtained in the high-multiplicity triggered data sample in pp collisions at sqrt(s) = 13 TeV recorded by ALICE at the LHC. The correlation function for both pairs is modeled using the Lednický–Lyuboshits analytical formula and the corresponding scattering parameters are extracted. The Λ–KK+ correlations show the presence of several structures at relative momenta k* above 200 MeV/c, compatible with the Ω baryon, the , and resonances decaying into Λ–K− pairs. The low k* region in the Λ–KK+ also exhibits the presence of the state, expected to strongly couple to the measured pair. The presented data allow to access the ΛK+ and ΛK− strong interaction with an unprecedented precision and deliver the first experimental observation of the decaying into ΛK−

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

Observation of flow angle and flow magnitude fluctuations in Pb-Pb collisions at sNN=5.02TeV at the CERN Large Hadron Collider

This Letter reports on the first measurements of transverse momentum dependent flow angle n and flow magnitude vn fluctuations determined using new four-particle correlators. The measurements are performed for various centralities in Pb–Pb collisions at a center-of-mass energy per nucleon pair of √s NN = 5.02 TeV with ALICE at the CERN Large Hadron Collider. Both flow angle and flow magnitude fluctuations are observed in the presented centrality ranges and are strongest in the most central collisions and for a transverse momentum pT > 2 GeV/c. Comparison with theoretical models, including iEBE-VISHNU, MUSIC, and AMPT, show that the measurements exhibit unique sensitivities to the initial state of heavy-ion collisions

First measurement of Λc+ production down to pT=0 in pp and p-Pb collisions at sNN=5.02 TeV

The production of prompt Lambda+c baryons has been measured at midrapidity in the transverse momentum interval 0 < pT < 1 GeV/c for the first time, in pp and p–Pb collisions at a center-of-mass energy per nucleon-nucleon collision √s NN = 5.02 TeV. The measurement was performed in the decay channel Lambda+c → pK0S by applying new decay reconstruction techniques using a Kalman-Filter vertexing algorithm and adopting a machine-learning approach for the candidate selection. The pT -integrated Lambda+c production cross sections in both collision systems were determined and used along with the measured yields in Pb–Pb collisions to compute the pT -integrated nuclear modification factors R pPb and R AA of Lambda+c baryons, which are compared to model calculations that consider nuclear modification of the parton distribution functions. The Lambda+c /D0 baryon-to-meson yield ratio is reported for pp and p–Pb collisions. Comparisons with models that include modified hadronization processes are presented, and the implications of the results on the understanding of charm hadronization in hadronic collisions are discussed. A significant (3.7σ ) modification of the mean transverse momentum of Lambda+c baryons is seen in p–Pb collisions with respect to pp collisions, while the pT -integrated Lambda+c /D0 yield ratio was found to be consistent between the two collision systems within the uncertainties

Inclusive J / ψ production at midrapidity in pp collisions at √s=13 TeV

open1030siAcknowledgements We wish to thank Mathias Butenschoen, Vincent Cheung, Bernd A. Kniehl, Artem V. Lipatov, Yan-Qing Ma, Raju Venugopalan and Ramona Vogt for kindly providing their calculations. The ALICE Collaboration would like to thank all its engineers and technicians for their invaluable contributions to the construction of the experiment and the CERN accelerator teams for the outstanding performance of the LHC complex. The ALICE Collaboration gratefully acknowledges the resources and support provided by all Grid centres and the Worldwide LHC Computing Grid (WLCG) collaboration. The ALICE Collaboration acknowledges the following funding agencies for their support in building and running the ALICE detector: A. I. Alikhanyan National Science Laboratory (Yerevan Physics Institute) Foundation (ANSL), State Committee of Science and World Federation of Scientists (WFS), Armenia; Austrian Academy of Sciences, Austrian Science Fund (FWF): [M 2467-N36] and Nationalstiftung für Forschung, Technologie und Entwicklung, Austria; Ministry of Communications and High Technologies, National Nuclear Research Center, Azerbaijan; Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq), Financiadora de Estudos e Projetos (Finep), Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) and Universidade Federal do Rio Grande do Sul (UFRGS), Brazil; Ministry of Education of China (MOEC) , Ministry of Science and Technology of China (MSTC) and National Natural Science Foundation of China (NSFC), China; Ministry of Science and Education and Croatian Science Foundation, Croatia; Centro de Aplicaciones Tecnológicas y Desarrollo Nuclear (CEADEN), Cubaenergía, Cuba; Ministry of Education, Youth and Sports of the Czech Republic, Czech Republic; The Danish Council for Independent Research | Natural Sciences, the VILLUM FONDEN and Danish National Research Foundation (DNRF), Denmark; Helsinki Institute of Physics (HIP), Finland; Commissariat à l’Energie Atomique (CEA) and Institut National de Physique Nucléaire et de Physique des Particules (IN2P3) and Centre National de la Recherche Scientifique (CNRS), France; Bundesministerium für Bildung und Forschung (BMBF) and GSI Helmholtzzentrum für Schwerionenforschung GmbH, Germany; General Secretariat for Research and Technology, Ministry of Education, Research and Religions, Greece; National Research, Development and Innovation Office, Hungary; Department of Atomic Energy Government of India (DAE), Department of Science and Technology, Government of India (DST), University Grants Commission, Government of India (UGC) and Council of Scientific and Industrial Research (CSIR), India; Indonesian Institute of Science, Indonesia; Istituto Nazionale di Fisica Nucleare (INFN), Italy; Institute for Innovative Science and Technology , Nagasaki Institute of Applied Science (IIST), Japanese Ministry of Education, Culture, Sports, Science and Technology (MEXT) and Japan Society for the Promotion of Science (JSPS) KAKENHI, Japan; Consejo Nacional de Ciencia (CONACYT) y Tecnología, through Fondo de Cooperación Internacional en Ciencia y Tecnología (FONCICYT) and Dirección General de Asuntos del Personal Academico (DGAPA), Mexico; Nederlandse Organisatie voor Wetenschappelijk Onderzoek (NWO), Netherlands; The Research Council of Norway, Norway; Commission on Science and Technology for Sustainable Development in the South (COMSATS), Pakistan; Pontificia Universidad Católica del Perú, Peru; Ministry of Education and Science, National Science Centre and WUT ID-UB, Poland; Korea Institute of Science and Technology Information and National Research Foundation of Korea (NRF), Republic of Korea; Ministry of Education and Scientific Research, Institute of Atomic Physics and Ministry of Research and Innovation and Institute of Atomic Physics, Romania; Joint Institute for Nuclear Research (JINR), Ministry of Education and Science of the Russian Federation, National Research Centre Kurchatov Institute, Russian Science Foundation and Russian Foundation for Basic Research, Russia; Ministry of Education, Science, Research and Sport of the Slovak Republic, Slovakia; National Research Foundation of South Africa, South Africa; Swedish Research Council (VR) and Knut and Alice Wallenberg Foundation (KAW), Sweden; European Organization for Nuclear Research, Switzerland; Suranaree University of Technology (SUT), National Science and Technology Development Agency (NSDTA) and Office of the Higher Education Commission under NRU project of Thailand, Thailand; Turkish Energy, Nuclear and Mineral Research Agency (TENMAK), Turkey; National Academy of Sciences of Ukraine, Ukraine; Science and Technology Facilities Council (STFC), United Kingdom; National Science Foundation of the United States of America (NSF) and United States Department of Energy, Office of Nuclear Physics (DOE NP), United States of America. In addition, individual groups and members have received support from Horizon 2020 and Marie Skłodowska Curie Actions, European Union.We report on the inclusive J / ψ production cross section measured at the CERN Large Hadron Collider in proton–proton collisions at a center-of-mass energy s=13&nbsp;TeV. The J / ψ mesons are reconstructed in the e +e - decay channel and the measurements are performed at midrapidity (| y| &lt; 0.9) in the transverse-momentum interval 0 &lt; pT&lt; 40 GeV/c, using a minimum-bias data sample corresponding to an integrated luminosity Lint=32.2nb-1 and an Electromagnetic Calorimeter triggered data sample with Lint=8.3pb-1. The pT-integrated J / ψ production cross section at midrapidity, computed using the minimum-bias data sample, is dσ/dy|y=0=8.97±0.24(stat)±0.48(syst)±0.15(lumi)μb. An approximate logarithmic dependence with the collision energy is suggested by these results and available world data, in agreement with model predictions. The integrated and pT-differential measurements are compared with measurements in pp collisions at lower energies and with several recent phenomenological calculations based on the non-relativistic QCD and Color Evaporation models.openAcharya S.; Adamova D.; Adler A.; Aglieri Rinella G.; 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.; Appelshauser 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.B.; Bearden I.G.; Beattie C.; Belikov I.; Bell Hechavarria A.D.C.; Bellini F.; Bellwied R.; Belokurova S.; Belyaev V.; Bencedi G.; Beole S.; Bercuci A.; Berdnikov Y.; Berdnikova A.; Bergmann L.; Besoiu M.G.; Betev L.; Bhaduri P.P.; Bhasin A.; Bhat I.R.; Bhat M.A.; Bhattacharjee B.; Bhattacharya P.; Bianchi L.; Bianchi N.; Bielcik J.; Bielcikova J.; 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.; Bylinkin A.; Bysiak S.A.; 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.; Castillo Castellanos J.; Casula E.A.R.; Catalano F.; Ceballos Sanchez C.; Chakraborty P.; Chandra S.; Chapeland S.; Chartier M.; Chattopadhyay S.; Chattopadhyay S.; Chauvin A.; Chavez T.G.; Cheng T.; Cheshkov C.; Cheynis B.; Chibante Barroso V.; 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.; Conesa Balbastre G.; Conesa del Valle Z.; Contin G.; Contreras J.G.; Coquet M.L.; Cormier T.M.; Cortese P.; Cosentino M.R.; Costa F.; Costanza S.; Crochet P.; Cruz-Torres R.; Cuautle E.; Cui P.; Cunqueiro L.; Dainese 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.; Stritto L.D.; Delsanto S.; Deng W.; Dhankher P.; Di Bari D.; Di Mauro A.; Diaz R.A.; Dietel T.; Ding Y.; Divia R.; Dixit D.U.; Djuvsland O.; 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.; Eisenhut F.; 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.; Gay Ducati M.B.; Germain M.; 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 S.; Groettvik O.S.; Grosa F.; Grosse-Oetringhaus J.F.; Grosso R.; Guardiano G.G.; Guernane R.; Guilbaud M.; Gulbrandsen K.; Gunji T.; Guo W.; 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.; Hou Y.; Hristov P.; Hughes C.; Huhn P.; 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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.; Martinez Garcia G.; 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.; Miskowiec D.; Modak A.; Mohanty A.P.; Mohanty B.; Mohisin Khan M.; Molander M.A.; Moravcova Z.; Mordasini C.; Moreira De Godoy D.A.; Moreno L.A.P.; Morozov I.; Morsch A.; Mrnjavac T.; Muccifora V.; 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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.; Sukhanov M.; 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.; Tapia Takaki J.D.; 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 S.R.; Trifiro A.; Tripathy S.; Tripathy T.; Trogolo S.; 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.; 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Investigation of K+K- interactions via femtoscopy in Pb-Pb collisions at sNN =2.76 TeV at the CERN Large Hadron Collider

Femtoscopic correlations of nonidentical charged kaons (K+K-) are studied in Pb-Pb collisions at a center-of-mass energy per nucleon-nucleon collision sNN=2.76 TeV by ALICE at the CERN Large Hadron Collider. One-dimensional K+K- correlation functions are analyzed in three centrality classes and eight intervals of particle-pair transverse momentum. The Lednický and Luboshitz interaction model used in the K+K- analysis includes the final-state Coulomb interactions between kaons and the final-state interaction through a0(980) and f0(980) resonances. The mass of f0(980) and coupling were extracted from the fit to K+K- correlation functions using the femtoscopic technique. The measured mass and width of the f0(980) resonance are consistent with other published measurements. The height of the φ(1020) meson peak present in the K+K- correlation function rapidly decreases with increasing source radius, qualitatively in agreement with an inverse volume dependence. A phenomenological fit to this trend suggests that the φ(1020) meson yield is dominated by particles produced directly from the hadronization of the system. The small fraction subsequently produced by final-state interactions could not be precisely quantified with data presented in this paper and will be assessed in future work

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 ¯pD+ pairs are measured by the ALICE Collaboration in high-multiplicity pp collisions at √s=13  TeV. The data are compatible with the Coulomb-only interaction hypothesis within (1.1–1.5)σ. The level of agreement slightly improves if an attractive nucleon (N)¯D 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=0 inverse scattering length of the N¯D state f−10,I=0∈[−0.4,0.9]  fm−1, assuming negligible interaction for the isospin I=1 channel

Measurement of the Lifetime and Λ Separation Energy of _{Λ}^{3}H

The most precise measurements to date of the _{Λ}^{3}H lifetime τ and Λ separation energy B_{Λ} are obtained using the data sample of Pb-Pb collisions at sqrt[s_{NN}]=5.02  TeV collected by ALICE at the LHC. The _{Λ}^{3}H is reconstructed via its charged two-body mesonic decay channel (_{Λ}^{3}H→^{3}He+π^{-} and the charge-conjugate process). The measured values τ=[253±11(stat)±6(syst)]  ps and B_{Λ}=[102±63(stat)±67(syst)]  keV are compatible with predictions from effective field theories and confirm that the _{Λ}^{3}H structure is consistent with a weakly bound system

Measurement of electrons from beauty-hadron decays in pp and Pb-Pb collisions at sNN=5.02 TeV

The production of electrons from beauty-hadron decays was measured at midrapidity in proton-proton (pp) and central Pb-Pb collisions at center-of-mass energy per nucleon-nucleon pair √s NN = 5.02 TeV, using the ALICE detector at the LHC. The cross section measured in pp collisions in the transverse momentum interval 2 < pT < 8 GeV/c was compared with models based on perturbative quantum chromodynamics calculations. The yield in the 10% most central Pb-Pb collisions, measured in the interval 2 < pT < 26 GeV/c, was used to compute the nuclear modification factor RAA, extrapolating the pp reference cross section to pT larger than 8 GeV/c. The measured R AA shows significant suppression of the yield of electrons from beauty-hadron decays at high pT and does not show a significant dependence above 8 GeV/c within uncertainties. The results are de- scribed by several theoretical models based on different implementations of the interaction of heavy quarks with a quark-gluon plasma, which predict a smaller energy loss for beauty quarks compared to light and charm quark