Measurement of deuteron spectra and elliptic flow in Pb-Pb collisions at √sNN=2.76 TeV at the LHC

被引：0

作者：

Acharya, S. ^{[151
]}

Adamova, D. ^{[108
]}

Adolfsson, J. ^{[46
]}

Aggarwal, M. M. ^{[113
]}

Rinella, G. Aglieri ^{[47
]}

Agnello, M. ^{[41
]}

Agrawal, N. ^{[60
]}

Ahammed, Z. ^{[151
]}

Ahmad, N. ^{[19
]}

Ahn, S. U. ^{[92
]}

Aiola, S. ^{[155
]}

Akindinov, A. ^{[77
]}

Alam, S. N. ^{[151
]}

Alba, J. L. B. ^{[126
]}

Albuquerque, D. S. D. ^{[137
]}

Aleksandrov, D. ^{[104
]}

Alessandro, B. ^{[71
]}

Alfaro Molina, R. ^{[87
]}

Alici, A. ^{[13
,33
,34
,66
]}

Alkin, A. ^{[3
]}

Alme, J. ^{[24
]}

Alt, T. ^{[83
]}

Altenkamper, L. ^{[24
]}

Altsybeev, I. ^{[150
]}

Alves Garcia Prado, C. ^{[136
]}

Andrei, C. ^{[101
]}

Andreou, D. ^{[47
]}

Andrews, H. A. ^{[125
]}

Andronic, A. ^{[121
]}

Anguelov, V. ^{[118
]}

Anson, C. ^{[111
]}

Anticic, T. ^{[122
]}

Antinori, F. ^{[69
]}

Antonioli, P. ^{[66
]}

Anwar, R. ^{[139
]}

Aphecetche, L. ^{[129
]}

Appelshaeuser, H. ^{[83
]}

Arcelli, S. ^{[33
,34
]}

Arnaldi, R. ^{[71
]}

Arnold, O. W. ^{[48
,119
]}

Arsene, I. C. ^{[23
]}

Arslandok, M. ^{[118
]}

Audurier, B. ^{[129
]}

Augustinus, A. ^{[47
]}

Averbeck, R. ^{[121
]}

Azmi, M. D. ^{[19
]}

Badala, A. ^{[68
]}

Baek, Y. W. ^{[73
,91
]}

Bagnasco, S. ^{[71
]}

Bailhache, R. ^{[83
]}

机构：

[1] AI Alikhanyan Natl Sci Lab Yerevan Phys Inst Fdn, Yerevan, Armenia

[2] Benemerita Univ Autonoma, Puebla, Mexico

[3] Bogolyubov Inst Theoret Phys, Kiev, Ukraine

[4] Bose Inst, Dept Phys, Kolkata, India

[5] Bose Inst, CAPSS, Kolkata, India

[6] Budker Inst Nucl Phys, Novosibirsk, Russia

[7] Calif Polytech State Univ San Luis Obispo, San Luis Obispo, CA USA

[8] Cent China Normal Univ, Wuhan, Hubei, Peoples R China

[9] IN2P3, Ctr Calcul, Villeurbanne, France

[10] Ctr Aplicaciones Tecnol & Desarrollo Nucl CEADEN, Havana, Cuba

[11] Ctr Invest Energeticas Medioambientales & Tecnol, Madrid, Spain

[12] Ctr Invest Estudios Avanzados CINVESTAV, Mexico City, DF, Mexico

[13] Ctr Fermi, Museo Storico Fis Ctr Ric Enrico Fermi, Rome, Italy

[14] Chicago State Univ, Chicago, IL USA

[15] China Inst Atom Energy, Beijing, Peoples R China

[16] COMSATS Inst Informat Technol CIIT, Islamabad, Pakistan

[17] Univ Santiago Compostela, Dept Fis, Santiago De Compostela, Spain

[18] Univ Santiago Compostela, IGFAE, Santiago De Compostela, Spain

[19] Aligarh Muslim Univ, Dept Phys, Aligarh, Uttar Pradesh, India

[20] Ohio State Univ, Dept Phys, 174 W 18th Ave, Columbus, OH 43210 USA

[21] Pusan Natl Univ, Dept Phys, Pusan, South Korea

[22] Sejong Univ, Dept Phys, Seoul, South Korea

[23] Univ Oslo, Dept Phys, Oslo, Norway

[24] Univ Bergen, Dept Phys & Technol, Bergen, Norway

[25] Univ Roma La Sapienza, Dipartimento Fis, Rome, Italy

[26] Sezione Ist Nazl Fis Nucl, Rome, Italy

[27] Dipartimento Fis Univ, Cagliari, Italy

[28] Sezione Ist Nazl Fis Nucl, Cagliari, Italy

[29] Dipartimento Fis Univ, Trieste, Italy

[30] Sezione Ist Nazl Fis Nucl, Trieste, Italy

[31] Dipartimento Fis Univ, Turin, Italy

[32] Sezione Ist Nazl Fis Nucl, Turin, Italy

[33] Dipartimento Fis Astron Univ, Bologna, Italy

[34] Sezione Ist Nazl Fis Nucl, Bologna, Italy

[35] Dipartimento Fis Astron Univ, Catania, Italy

[36] Sezione Ist Nazl Fis Nucl, Catania, Italy

[37] Dipartimento Fis Astron Univ, Padua, Italy

[38] Sezione Ist Nazl Fis Nucl, Padua, Italy

[39] Dipartimento Fis ER Caianiello Univ, Salerno, Italy

[40] Ist Nazl Fis Nucl, Gruppo Collegato, Salerno, Italy

[41] Dipartimento DISAT Politecn, Turin, Italy

[42] Univ Piemonte Orientale, Dipartimento Fis, Alessandria, Italy

[43] INFN Sez Torino, Alessandria, Italy

[44] Dipartimento Interateneo Fis M Merlin, Bari, Italy

[45] Sezione Ist Nazl Fis Nucl, Bari, Italy

[46] Lund Univ, Div Expt High Energy Phys, Lund, Sweden

[47] European Org Nucl Res CERN, Geneva, Switzerland

[48] Tech Univ Munich, Excellence Cluster Univ, Munich, Germany

[49] Bergen Univ Coll, Fac Engn, Bergen, Norway

[50] Comenius Univ, Fac Math Phys & Informat, Bratislava, Slovakia

来源：

EUROPEAN PHYSICAL JOURNAL C | 2017年 / 77卷 / 10期

基金：

美国能源部; 新加坡国家研究基金会; 中国国家自然科学基金; 瑞典研究理事会; 美国国家科学基金会; 巴西圣保罗研究基金会; 日本学术振兴会; 英国科学技术设施理事会;

关键词：

AU+AU COLLISIONS; NUCLEAR; DEPENDENCE; ANISOTROPY; EXPANSION; HADRONS; MODEL;

D O I：

10.1140/epjc/s10052-017-5222-x

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

The transverse momentum (p(T)) spectra and elliptic flow coefficient (v(2)) of deuterons and anti-deuterons at mid-rapidity (|y| < 0.5) are measured with the ALICE detector at the LHC in Pb-Pb collisions at root s(NN) = 2.76 TeV. The measurement of the p(T) spectra of (anti-)deuterons is done up to 8 GeV/c in 0-10% centrality class and up to 6 GeV/c in 10-20% and 20-40% centrality classes. The v(2) is measured in the 0.8 < p(T) < 5 GeV/c interval and in six different centrality intervals (0-5, 5-10, 10-20, 20-30, 30-40 and 40-50%) using the scalar product technique. Measured pi(+/-), K-+/- and p+(p) over bar transverse-momentum spectra and v(2) are used to predict the deuteron p(T) spectra and v(2) within the Blast-Wave model. The predictions are able to reproduce the v(2) coefficient in the measured p(T) range and the transverse-momentum spectra for p(T) > 1.8 GeV/c within the experimental uncertainties. The measurement of the coalescence parameter B-2 is performed, showing a p(T) dependence in contrast with the simplest coalescence model, which fails to reproduce also the measured v(2) coefficient. In addition, the coalescence parameter B-2 and the elliptic flow coefficient in the 20-40% centrality interval are compared with the AMPT model which is able, in its version without string melting, to reproduce the measured v(2)(p(T)) and the B-2(p(T)) trend.

引用

页数：20

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