在质心能量平方根√[sNN]=5.02 TeV的质子-铅核碰撞中产生超氚核
Hypertriton Production in p-Pb Collisions at sqrt[s_{NN}]=5.02 TeV.
作者信息
Acharya S, Adamová 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, Appelshäuser H, Arcelli S, Arnaldi R, Arsene I C, Arslandok M, Augustinus A, Averbeck R, Aziz S, Azmi M D, Badalà 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, Barnaföldi 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, Bazo Alba J L, 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, Bielčík J, Bielčíková 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, Boldizsár 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, 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, Dello Stritto L, Delsanto S, Deng W, Dhankher P, Di Bari D, Di Mauro A, Diaz R A, Dietel T, Ding Y, Divià R, Dixit D U, Djuvsland Ø, Dmitrieva U, Do J, Dobrin A, Dönigus 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, 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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, Hellbär 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, Kalweit A, Kaplin V, Kar S, Karasu Uysal A, Karatovic D, Karavichev O, Karavicheva T, Karczmarczyk P, Karpechev E, Kazantsev A, 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Lazareva T, Lea R, Lehrbach J, Lemmon R C, León Monzón I, Lesser E D, Lettrich M, Lévai 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, López 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, Mareš J, Margagliotti G V, Margotti A, Marín A, Markert C, Marquard M, Martin N A, Martinengo P, Martinez J L, Martínez M I, Martínez García 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, Miśkowiec 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, Mühlheim 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, Paić 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, 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机构信息
Variable Energy Cyclotron Centre, Homi Bhabha National Institute, Kolkata, India.
Nuclear Physics Institute of the Czech Academy of Sciences, Řežu Prahy, Czech Republic.
出版信息
Phys Rev Lett. 2022 Jun 24;128(25):252003. doi: 10.1103/PhysRevLett.128.252003.
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 {Λ}^{3}H in p-Pb collisions at sqrt[s{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 dN/dy=[6.3±1.8(stat)±1.2(syst)]×10^{-7}. The measurement is compared with the expectations of statistical hadronization and coalescence models, which describe the nucleosynthesis in hadronic collisions. These two models predict very different yields of the hypertriton in charged particle multiplicity environments relevant to small collision systems such as p-Pb, and therefore the measurement of dN/dy is crucial to distinguish between them. The precision of this measurement leads to the exclusion with a significance larger than 6.9σ of some configurations of the statistical hadronization model, thus constraining the theory behind the production of loosely bound states at hadron colliders.
原子核与反原子核产生的研究已被证明是探究高能强子碰撞中松散束缚态形成机制的有力工具。本文给出了在(\sqrt{s_{NN}} = 5.02) TeV的质子 - 铅离子碰撞中(_{\Lambda}^{3}H)产生的首次测量结果。在40%最高多重数的质子 - 铅离子碰撞中，在快度区间(-1 < y < 0)测量得到的其产额为(dN/dy = [6.3 \pm 1.8(统计) \pm 1.2(系统)]×10^{-7})。该测量结果与统计强子化模型和聚合模型的预期进行了比较，这两个模型描述了强子碰撞中的核合成。在与小碰撞系统（如质子 - 铅离子碰撞）相关的带电粒子多重数环境中，这两个模型预测的超氚产额差异很大，因此(dN/dy)的测量对于区分它们至关重要。该测量的精度导致在大于(6.9\sigma)的显著性水平下排除了统计强子化模型的某些构型，从而限制了强子对撞机中松散束缚态产生背后的理论。
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