Laparoscopy in management of appendicitis in high-, middle-, and low-income countries: a multicenter, prospective, cohort study.

BACKGROUND: Appendicitis is the most common abdominal surgical emergency worldwide. Differences between high- and low-income settings in the availability of laparoscopic appendectomy, alternative management choices, and outcomes are poorly described. The aim was to identify variation in surgical management and outcomes of appendicitis within low-, middle-, and high-Human Development Index (HDI) countries worldwide. METHODS: This is a multicenter, international prospective cohort study. Consecutive sampling of patients undergoing emergency appendectomy over 6 months was conducted. Follow-up lasted 30 days. RESULTS: 4546 patients from 52 countries underwent appendectomy (2499 high-, 1540 middle-, and 507 low-HDI groups). Surgical site infection (SSI) rates were higher in low-HDI (OR 2.57, 95% CI 1.33-4.99, p = 0.005) but not middle-HDI countries (OR 1.38, 95% CI 0.76-2.52, p = 0.291), compared with high-HDI countries after adjustment. A laparoscopic approach was common in high-HDI countries (1693/2499, 67.7%), but infrequent in low-HDI (41/507, 8.1%) and middle-HDI (132/1540, 8.6%) groups. After accounting for case-mix, laparoscopy was still associated with fewer overall complications (OR 0.55, 95% CI 0.42-0.71, p < 0.001) and SSIs (OR 0.22, 95% CI 0.14-0.33, p < 0.001). In propensity-score matched groups within low-/middle-HDI countries, laparoscopy was still associated with fewer overall complications (OR 0.23 95% CI 0.11-0.44) and SSI (OR 0.21 95% CI 0.09-0.45). CONCLUSION: A laparoscopic approach is associated with better outcomes and availability appears to differ by country HDI. Despite the profound clinical, operational, and financial barriers to its widespread introduction, laparoscopy could significantly improve outcomes for patients in low-resource environments. TRIAL REGISTRATION: NCT02179112

Long- and short-range correlations and their event-scale dependence in high-multiplicity pp collisions at 1as = 13 TeV

Two-particle angular correlations are measured in high-multiplicity proton-proton collisions at s = 13 TeV by the ALICE Collaboration. The yields of particle pairs at short-( 06\u3b7 3c 0) and long-range (1.6 < | 06\u3b7| < 1.8) in pseudorapidity are extracted on the near-side ( 06\u3c6 3c 0). They are reported as a function of transverse momentum (pT) in the range 1 < pT< 4 GeV/c. Furthermore, the event-scale dependence is studied for the first time by requiring the presence of high-pT leading particles or jets for varying pT thresholds. The results demonstrate that the long-range \u201cridge\u201d yield, possibly related to the collective behavior of the system, is present in events with high-pT processes as well. The magnitudes of the short- and long-range yields are found to grow with the event scale. The results are compared to EPOS LHC and PYTHIA 8 calculations, with and without string-shoving interactions. It is found that while both models describe the qualitative trends in the data, calculations from EPOS LHC show a better quantitative agreement for the pT dependency, while overestimating the event-scale dependency. [Figure not available: see fulltext.

Pion-kaon femtoscopy and the lifetime of the hadronic phase in Pb-Pb collisions at root(S)(NN)=2.76 TeV

In this paper, the first femtoscopic analysis of pion-kaon correlations at the LHC is reported. The analysis was performed on the Pb-Pb collision data at root(S)(NN) = 2.76 TeV recorded with the ALICE detector. The non-identical particle correlations probe the spatio-temporal separation between sources of different particle species as well as the average source size of the emitting system. The sizes of the pion and kaon sources increase with centrality, and pions are emitted closer to the centre of the system and/or later than kaons. This is naturally expected in a system with strong radial flow and is qualitatively reproduced by hydrodynamic models. ALICE data on pion-kaon emission asymmetry are consistent with (3+1)-dimensional viscous hydrodynamics coupled to a statistical hadronisation model, resonance propagation, and decay code THERMINATOR 2 calculation, with an additional time delay between 1 and 2 fm/c for kaons. The delay can be interpreted as evidence for a significant hadronic rescattering phase in heavy-ion collisions at the LHC. (C) 2020 The Author. Published by Elsevier B.V.Peer reviewe

Polarization of Λ and Λ¯ Hyperons along the Beam Direction in Pb-Pb Collisions at √sNN = 5.02 TeV

The polarization of the Lambda and (Lambda) over bar hyperons along the beam (z) direction, P-z, has been measured in Pb-Pb collisions at root s(NN) = 5.02 TeV recorded with ALICE at the Large Hadron Collider (LHC). The main contribution to P-z comes from elliptic flow-induced vorticity and can be characterized by the second Fourier sine coefficient P-z,P-s2 = &lt; P-z sin(2 phi - 2 Psi(2))&gt;, where phi is the hyperon azimuthal emission angle and Psi(2) is the elliptic flow plane angle. We report the measurement of P-z,P-s2 for different collision centralities and in the 30%-50% centrality interval as a function of the hyperon transverse momentum and rapidity. The P-z,P-s2 is positive similarly as measured by the STAR Collaboration in Au-Au collisions at root s(NN) = 200 GeV, with somewhat smaller amplitude in the semicentral collisions. This is the first experimental evidence of a nonzero hyperon P-z in Pb-Pb collisions at the LHC. The comparison of the measured P-z,P-s2 with the hydrodynamic model calculations shows sensitivity to the competing contributions from thermal and the recently found shear-induced vorticity, as well as to whether the polarization is acquired at the quark-gluon plasma or the hadronic phase

Study of very forward energy and its correlation with particle production at midrapidity in pp and p-Pb collisions at the LHC

The energy deposited at very forward rapidities (very forward energy) is a powerful tool for characterising proton fragmentation in pp and p-Pb collisions. The correlation of very forward energy with particle production at midrapidity provides direct insights into the initial stages and the subsequent evolution of the collision. Furthermore, the correlation with the production of particles with large transverse momenta at midrapidity provides information complementary to the measurements of the underlying event, which are usually interpreted in the framework of models implementing centrality-dependent multiple parton interactions. Results about very forward energy, measured by the ALICE zero degree calorimeters (ZDCs), and its dependence on the activity measured at midrapidity in pp collisions at √s = 13 TeV and in p-Pb collisions at √sNN = 8.16 TeV are discussed. The measurements performed in pp collisions are compared with the expectations of three hadronic interaction event generators: PYTHIA 6 (Perugia 2011 tune), PYTHIA 8 (Monash tune), and EPOS LHC. These results provide new constraints on the validity of models in describing the beam remnants at very forward rapidities, where perturbative QCD cannot be used

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

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.; 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.; Jimenez A.A.P.; Jonas F.; Jones P.G.; Jowett J.M.; Jung J.; Jung M.; Junique A.; Jusko A.; Kaewjai J.; Kalinak P.; Kalteyer A.S.; Kalweit A.; Kaplin V.; Kar S.; Karasu Uysal A.; 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.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.; Kravcakova A.; Kreis L.; Krivda M.; Krizek F.; Gajdosova K.K.; Kroesen M.; Kruger M.; Kryshen E.; Krzewicki M.; Kucera V.; 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.; Leon Monzon I.; 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 D.H.; 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.; 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.; 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.; 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.; Oliveira Da Silva A.C.; Oliver M.H.; Onnerstad A.; Oppedisano C.; Ortiz Velasquez A.; Osako T.; Oskarsson A.; Otwinowski J.; Oya M.; Oyama K.; Pachmayer Y.; Padhan S.; Pagano D.; Paic G.; Palasciano A.; Pan J.; Panebianco S.; Pareek P.; Park J.; Parkkila J.E.; Pathak S.P.; Patra R.N.; Paul B.; Pei H.; Peitzmann T.; Peng X.; Pereira L.G.; Pereira Da Costa H.; Peresunko D.; Perez G.M.; Perrin S.; Pestov Y.; Petracek V.; Petrovici M.; Pezzi R.P.; Piano S.; Pikna M.; Pillot P.; Pinazza O.; Pinsky L.; Pinto C.; Pisano S.; Ploskon M.; 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.; 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.; Safarik K.; 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.; Serksnyte L.; 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.; Simantathammakul T.; 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.; 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.; van Leeuwen M.; Vande Vyvre P.; Varga D.; Varga Z.; Varga-Kofarago M.; Vargas A.; Vasileiou M.; Vasiliev A.; Vazquez Doce O.; Vechernin V.; Vercellin E.; Vergara Limon S.; Vermunt L.; Vertesi R.; Verweij M.; Vickovic L.; Vilakazi Z.; Villalobos Baillie O.; 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.; Yadav A.K.; 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.; Zampolli C.; Zanoli H.J.C.; Zardoshti N.; Zarochentsev A.; Zavada P.; Zaviyalov N.; Zhalov M.; Zhang B.; Zhang S.; Zhang X.; Zhang Y.; Zherebchevskii V.; Zhi Y.; Zhigareva N.; Zhou D.; 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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.

Elliptic and triangular flow of (anti)deuterons in Pb-Pb collisions at sNN =5.02 TeV

The measurements of the (anti)deuteron elliptic flow (v2) and the first measurements of triangular flow (v3) in Pb-Pb collisions at a center-of-mass energy per nucleon-nucleon collision √sNN = 5.02 TeV are presented. A mass ordering at low transverse momentum (pT) is observed when comparing these measurements with those of other identified hadrons, as expected from relativistic hydrodynamics. The measured (anti)deuteron v2 lies between the predictions from the simple coalescence and blast-wave models, which provide a good description of the data only for more peripheral and for more central collisions, respectively. The mass number scaling, which is violated for v2, is approximately valid for the (anti)deuterons v3. The measured v2 and v3 are also compared with the predictions from a coalescence approach with phase-space distributions of nucleons generated by IEBEVISHNU with AMPT initial conditions coupled with URQMD, and from a dynamical model based on relativistic hydrodynamics coupled to the hadronic afterburner SMASH. The model predictions are consistent with the data within the uncertainties in midcentral collisions, while a deviation is observed in the most central collisions