在质心能量平方根√[sNN]=5.02 TeV的铅-铅碰撞中J/ψ椭圆流
J/ψ Elliptic Flow in Pb-Pb Collisions at sqrt[s_{NN}]=5.02 TeV.
作者信息
Acharya S, Adamová D, Adolfsson J, Aggarwal M M, Aglieri Rinella G, Agnello M, Agrawal N, Ahammed Z, Ahn S U, Aiola S, Akindinov A, Al-Turany M, Alam S N, Albuquerque D S D, Aleksandrov D, Alessandro B, Alfaro Molina R, Ali Y, Alici A, Alkin A, Alme J, Alt T, Altenkamper L, Altsybeev I, Alves Garcia Prado C, Andrei C, Andreou D, Andrews H A, Andronic A, Anguelov V, Anson C, Antičić T, Antinori F, Antonioli P, Anwar R, Aphecetche L, Appelshäuser H, Arcelli S, Arnaldi R, Arnold O W, Arsene I C, Arslandok M, Audurier B, Augustinus A, Averbeck R, Azmi M D, Badalà A, Baek Y W, Bagnasco S, Bailhache R, Bala R, Baldisseri A, Ball M, Baral R C, Barbano A M, Barbera R, Barile F, Barioglio L, Barnaföldi G G, Barnby L S, Barret V, Bartalini P, Barth K, Bartsch E, Bastid N, Basu S, Batigne G, Batyunya B, Batzing P C, Bazo Alba J L, Bearden I G, Beck H, Bedda C, Behera N K, Belikov I, Bellini F, Bello Martinez H, Bellwied R, Beltran L G E, Belyaev V, Bencedi G, Beole S, Bercuci A, Berdnikov Y, Berenyi D, Bertens R A, Berzano D, Betev L, Bhasin A, Bhat I R, Bhattacharjee B, Bhom J, Bianchi A, Bianchi L, Bianchi N, Bianchin C, Bielčík J, Bielčíková J, Bilandzic A, Biro G, Biswas R, Biswas S, Blair J T, Blau D, Blume C, Boca G, Bock F, Bogdanov A, Boldizsár L, Bombara M, Bonomi G, Bonora M, Book J, Borel H, Borissov A, Borri M, Botta E, Bourjau C, Bratrud L, Braun-Munzinger P, Bregant M, Broker T A, Broz M, Brucken E J, Bruna E, Bruno G E, Budnikov D, Buesching H, Bufalino S, Buhler P, Buncic P, Busch O, Buthelezi Z, Butt J B, Buxton J T, Cabala J, Caffarri D, Caines H, Caliva A, Calvo Villar E, Camerini P, Capon A A, Carena F, Carena W, Carnesecchi F, Castillo Castellanos J, Castro A J, Casula E A R, Ceballos Sanchez C, Chandra S, Chang B, Chang W, Chapeland S, Chartier M, Chattopadhyay S, Chattopadhyay S, Chauvin A, Cheshkov C, Cheynis B, Chibante Barroso V, Chinellato D D, Cho S, Chochula P, Chojnacki M, Choudhury S, Chowdhury T, Christakoglou P, Christensen C H, Christiansen P, Chujo T, Chung S U, Cicalo C, Cifarelli L, Cindolo F, Cleymans J, Colamaria F, Colella D, Collu A, Colocci M, Concas M, Conesa Balbastre G, Conesa Del Valle Z, Contreras J G, Cormier T M, Corrales Morales Y, Cortés Maldonado I, Cortese P, Cosentino M R, Costa F, Costanza S, Crkovská J, Crochet P, Cuautle E, Cunqueiro L, Dahms T, Dainese A, Danisch M C, Danu A, Das D, Das I, Das S, Dash A, Dash S, De S, De Caro A, de Cataldo G, de Conti C, de Cuveland J, De Falco A, De Gruttola D, De Marco N, De Pasquale S, De Souza R D, Degenhardt H F, Deisting A, Deloff A, Deplano C, Dhankher P, Di Bari D, Di Mauro A, Di Nezza P, Di Ruzza B, Diaz Corchero M A, Dietel T, Dillenseger P, Ding Y, Divià R, Djuvsland Ø, Dobrin A, Domenicis Gimenez D, Dönigus B, Dordic O, Doremalen L V R, Dubey A K, Dubla A, Ducroux L, Dudi S, Duggal A K, Dukhishyam M, Dupieux P, Ehlers R J, Elia D, Endress E, Engel H, Epple E, Erazmus B, Erhardt F, Espagnon B, Eulisse G, Eum J, Evans D, Evdokimov S, Fabbietti L, Faivre J, Fantoni A, Fasel M, Feldkamp L, Feliciello A, Feofilov G, Fernández Téllez A, Ferreiro E G, Ferretti A, Festanti A, Feuillard V J G, Figiel J, Figueredo M A S, Filchagin S, Finogeev D, Fionda F M, Floris M, Foertsch S, Foka P, Fokin S, Fragiacomo E, Francescon A, Francisco A, Frankenfeld U, Fronze G G, Fuchs U, Furget C, Furs A, Fusco Girard M, Gaardhøje J J, Gagliardi M, Gago A M, Gajdosova K, Gallio M, Galvan C D, Ganoti P, Garabatos C, Garcia-Solis E, Garg K, Gargiulo C, Gasik P, Gauger E F, Gay Ducati M B, Germain M, Ghosh J, Ghosh P, Ghosh S K, Gianotti P, Giubellino P, Giubilato P, Gladysz-Dziadus E, Glässel P, Goméz Coral D M, Gomez Ramirez A, Gonzalez A S, Gonzalez V, González-Zamora P, Gorbunov S, Görlich L, Gotovac S, Grabski V, Graczykowski L K, Graham K L, Greiner L, Grelli A, Grigoras C, Grigoriev V, Grigoryan A, Grigoryan S, Gronefeld J M, Grosa F, Grosse-Oetringhaus J F, Grosso R, Guber F, Guernane R, Guerzoni B, Gulbrandsen K, Gunji T, Gupta A, Gupta R, Guzman I B, Haake R, Hadjidakis C, Hamagaki H, Hamar G, Hamon J C, Haque M R, Harris J W, Harton A, Hassan H, Hatzifotiadou D, Hayashi S, Heckel S T, Hellbär E, Helstrup H, Herghelegiu A, Hernandez E G, Herrera Corral G, Herrmann F, Hess B A, Hetland K F, Hillemanns H, Hills C, Hippolyte B, Hohlweger B, Horak D, Hornung S, Hosokawa R, Hristov P, Hughes C, Humanic T J, Hussain N, Hussain T, Hutter D, Hwang D S, Iga Buitron S A, Ilkaev R, Inaba M, Ippolitov M, Islam M S, Ivanov M, Ivanov V, Izucheev V, Jacak B, Jacazio N, Jacobs P M, Jadhav M B, Jadlovska S, Jadlovsky J, Jaelani S, Jahnke C, Jakubowska M J, Janik M A, Jayarathna P H S Y, Jena C, Jercic M, Jimenez Bustamante R T, Jones P G, Jusko A, Kalinak P, Kalweit A, Kang J H, Kaplin V, Kar S, Karasu Uysal A, Karavichev O, Karavicheva T, Karayan L, Karczmarczyk P, Karpechev E, Kebschull U, Keidel R, Keijdener D L D, Keil M, Ketzer B, Khabanova Z, Khan P, Khan S A, Khanzadeev A, Kharlov Y, Khatun A, Khuntia A, Kielbowicz M M, Kileng B, Kim B, Kim D, Kim D J, Kim H, Kim J S, Kim J, Kim M, Kim S, Kim T, Kirsch S, Kisel I, Kiselev S, Kisiel A, Kiss G, Klay J L, Klein C, Klein J, Klein-Bösing C, Klewin S, Kluge A, Knichel M L, Knospe A G, Kobdaj C, Kofarago M, Köhler M K, Kollegger T, Kondratiev V, Kondratyeva N, Kondratyuk E, Konevskikh A, Konyushikhin M, Kopcik M, Kour M, Kouzinopoulos C, Kovalenko O, Kovalenko V, Kowalski M, Koyithatta Meethaleveedu G, Králik I, Kravčáková A, Kreis L, Krivda M, Krizek F, Kryshen E, Krzewicki M, Kubera A M, Kučera V, Kuhn C, Kuijer P G, Kumar A, Kumar J, Kumar L, Kumar S, Kundu S, Kurashvili P, Kurepin A, Kurepin A B, Kuryakin A, Kushpil S, Kweon M J, Kwon Y, La Pointe S L, La Rocca P, Lagana Fernandes C, Lai Y S, Lakomov I, Langoy R, Lapidus K, Lara C, Lardeux A, Lattuca A, Laudi E, Lavicka R, Lea R, Leardini L, Lee S, Lehas F, Lehner S, Lehrbach J, Lemmon R C, Leogrande E, León Monzón I, Lévai P, Li X, Lien J, Lietava R, Lim B, Lindal S, Lindenstruth V, Lindsay S W, Lippmann C, Lisa M A, Litichevskyi V, Llope W J, Lodato D F, Loenne P I, Loginov V, Loizides C, Loncar P, Lopez X, López Torres E, Lowe A, Luettig P, Luhder J R, Lunardon M, Luparello G, Lupi M, Lutz T H, Maevskaya A, Mager M, Mahmood S M, Maire A, Majka R D, Malaev M, Malinina L, Mal'Kevich D, Malzacher P, Mamonov A, Manko V, Manso F, Manzari V, Mao Y, Marchisone M, Mareš J, Margagliotti G V, Margotti A, Margutti J, Marín A, Markert C, Marquard M, Martin N A, Martinengo P, Martinez J A L, Martínez M I, Martínez García G, Martinez Pedreira M, Masciocchi S, Masera M, Masoni A, Masson E, Mastroserio A, Mathis A M, Matuoka P F T, Matyja A, Mayer C, Mazer J, Mazzilli M, Mazzoni M A, Meddi F, Melikyan Y, Menchaca-Rocha A, Meninno E, Mercado Pérez J, Meres M, Mhlanga S, Miake Y, Mieskolainen M M, Mihaylov D L, Mikhaylov K, Mischke A, Mishra A N, Miśkowiec D, Mitra J, Mitu C M, Mohammadi N, Mohanty A P, Mohanty B, Mohisin Khan M, Montes E, Moreira De Godoy D A, Moreno L A P, Moretto S, Morreale A, Morsch A, Muccifora V, Mudnic E, Mühlheim D, Muhuri S, Mukherjee M, Mulligan J D, Munhoz M G, Münning K, Munzer R H, Murakami H, Murray S, Musa L, Musinsky J, Myers C J, Myrcha J W, Nag D, Naik B, Nair R, Nandi B K, Nania R, Nappi E, Narayan A, Naru M U, Natal da Luz H, Nattrass C, Navarro S R, Nayak K, Nayak R, Nayak T K, Nazarenko S, Negrao De Oliveira R A, Nellen L, Nesbo S V, Ng F, Nicassio M, Niculescu M, Niedziela J, Nielsen B S, Nikolaev S, Nikulin S, Nikulin V, Noferini F, Nomokonov P, Nooren G, Noris J C C, Norman J, Nyanin A, Nystrand J, Oeschler H, Ohlson A, Okubo T, Olah L, Oleniacz J, Oliveira Da Silva A C, Oliver M H, Onderwaater J, Oppedisano C, Orava R, Oravec M, Ortiz Velasquez A, Oskarsson A, Otwinowski J, Oyama K, Pachmayer Y, Pacik V, Pagano D, Paić G, Palni P, Pan J, Pandey A K, Panebianco S, Papikyan V, Pareek P, Park J, Parmar S, Passfeld A, Pathak S P, Patra R N, Paul B, Pei H, Peitzmann T, Peng X, Pereira L G, Pereira Da Costa H, Peresunko D, Perez Lezama E, Peskov V, Pestov Y, Petráček V, Petrov V, Petrovici M, Petta C, Pezzi R P, Piano S, Pikna M, Pillot P, Pimentel L O D L, Pinazza O, Pinsky L, Piyarathna D B, Płoskoń M, Planinic M, Pliquett F, Pluta J, Pochybova S, Podesta-Lerma P L M, Poghosyan M G, Polichtchouk B, Poljak N, Poonsawat W, Pop A, Poppenborg H, Porteboeuf-Houssais S, Pozdniakov V, Prasad S K, Preghenella R, Prino F, Pruneau C A, Pshenichnov I, Puccio M, Punin V, Putschke J, Raha S, Rajput S, Rak J, Rakotozafindrabe A, Ramello L, Rami F, Rana D B, Raniwala R, Raniwala S, Räsänen S S, Rascanu B T, Rathee D, Ratza V, Ravasenga I, Read K F, Redlich K, Rehman A, Reichelt P, Reidt F, Ren X, Renfordt R, Reshetin A, Reygers K, Riabov V, Richert T, Richter M, Riedler P, Riegler W, Riggi F, Ristea C, Rodríguez Cahuantzi M, Røed K, Rogochaya E, Rohr D, Röhrich D, Rokita P S, Ronchetti F, Rosas E D, Rosnet P, Rossi A, Rotondi A, Roukoutakis F, Roy C, Roy P, Rubio Montero A J, Rueda O V, Rui R, Rumyantsev B, Rustamov A, Ryabinkin E, Ryabov Y, Rybicki A, Saarinen S, Sadhu S, Sadovsky S, Šafařík K, Saha S K, Sahlmuller B, Sahoo B, Sahoo P, Sahoo R, Sahoo S, Sahu P K, Saini J, Sakai S, Saleh M A, Salzwedel J, Sambyal S, Samsonov V, Sandoval A, Sarkar A, Sarkar D, Sarkar N, Sarma P, Sas M H P, Scapparone E, Scarlassara F, Schaefer B, Scheid H S, Schiaua C, Schicker R, Schmidt C, Schmidt H R, Schmidt M O, Schmidt M, Schmidt N V, Schukraft J, Schutz Y, Schwarz K, Schweda K, Scioli G, Scomparin E, Šefčík M, Seger J E, Sekiguchi Y, Sekihata D, Selyuzhenkov I, Senosi K, Senyukov S, Serradilla E, Sett P, Sevcenco A, Shabanov A, Shabetai A, Shahoyan R, Shaikh W, Shangaraev A, Sharma A, Sharma A, Sharma M, Sharma M, Sharma N, Sheikh A I, Shigaki K, Shirinkin S, Shou Q, Shtejer K, Sibiriak Y, Siddhanta S, Sielewicz K M, Siemiarczuk T, Silaeva S, Silvermyr D, Simatovic G, Simonetti G, Singaraju R, Singh R, Singhal V, Sinha T, Sitar B, Sitta M, Skaali T B, Slupecki M, Smirnov N, Snellings R J M, Snellman T W, Song 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机构信息
Variable Energy Cyclotron Centre, Kolkata, India.
Nuclear Physics Institute, Academy of Sciences of the Czech Republic, Řež u Prahy, Czech Republic.
出版信息
Phys Rev Lett. 2017 Dec 15;119(24):242301. doi: 10.1103/PhysRevLett.119.242301.
We report a precise measurement of the J/ψ elliptic flow in Pb-Pb collisions at sqrt[s_{NN}]=5.02 TeV with the ALICE detector at the LHC. The J/ψ mesons are reconstructed at midrapidity (|y|<0.9) in the dielectron decay channel and at forward rapidity (2.5<y<4.0) in the dimuon channel, both down to zero transverse momentum. At forward rapidity, the elliptic flow v_{2} of the J/ψ is studied as a function of the transverse momentum and centrality. A positive v_{2} is observed in the transverse momentum range 2<p_{T}<8 GeV/c in the three centrality classes studied and confirms with higher statistics our earlier results at sqrt[s_{NN}]=2.76 TeV in semicentral collisions. At midrapidity, the J/ψ v_{2} is investigated as a function of the transverse momentum in semicentral collisions and found to be in agreement with the measurements at forward rapidity. These results are compared to transport model calculations. The comparison supports the idea that at low p_{T} the elliptic flow of the J/ψ originates from the thermalization of charm quarks in the deconfined medium but suggests that additional mechanisms might be missing in the models.
我们报告了利用大型强子对撞机（LHC）上的ALICE探测器，对质心能量(\sqrt{s_{NN}} = 5.02) TeV的铅-铅碰撞中J/ψ椭圆流的精确测量。J/ψ介子在双电子衰变通道的中快度（(|y| < 0.9)）和双μ子通道的前向快度（(2.5 < y < 4.0)）下重建，两者均低至零横向动量。在前向快度下，研究了J/ψ的椭圆流(v_{2})作为横向动量和中心度的函数。在所研究的三个中心度类别中，在横向动量范围(2 < p_{T} < 8) GeV/c内观察到正的(v_{2})，并以更高的统计量证实了我们早期在(\sqrt{s_{NN}} = 2.76) TeV的半中心碰撞中的结果。在中快度下，研究了半中心碰撞中J/ψ的(v_{2})作为横向动量的函数，发现与前向快度下的测量结果一致。将这些结果与输运模型计算进行了比较。比较结果支持了这样一种观点，即低(p_{T})时J/ψ的椭圆流源于解禁闭介质中粲夸克的热化，但表明模型中可能缺少其他机制。
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