First measurement of Ξc0 production in pp collisions at √s=7 TeV

被引：27

作者：

Acharya, S. ^{[145
]}

Adamova, D. ^{[101
]}

Adolfsson, J. ^{[47
]}

Aggarwal, M. M. ^{[106
]}

Rinella, G. Aglieri ^{[48
]}

Agnello, M. ^{[41
,42
]}

Agrawal, N. ^{[61
]}

Ahammed, Z. ^{[145
]}

Ahn, S. U. ^{[86
]}

Aiola, S. ^{[149
]}

Akindinov, A. ^{[71
]}

Al-Turany, M. ^{[113
,114
]}

Alam, S. N.

Albuquerque, D. S. D. ^{[130
]}

Aleksandrov, D. ^{[97
]}

Alessandro, B. ^{[66
]}

Molina, R. Alfaro ^{[81
]}

Ali, Y. ^{[16
]}

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

Alkin, A. ^{[3
]}

Alme, J. ^{[24
]}

Alt, T. ^{[77
]}

Altenkamper, L. ^{[24
]}

Altsybeev, I. ^{[144
]}

Prado, C. Alves Garcia ^{[129
]}

Andrei, C. ^{[94
]}

Andreou, D. ^{[48
]}

Andrews, H. A. ^{[118
]}

Andronic, A. ^{[113
,114
]}

Anguelov, V. ^{[111
]}

Anson, C. ^{[104
]}

Anticic, T. ^{[115
]}

Antinori, F. ^{[38
]}

Antonioli, R. ^{[34
]}

Aphecetche, L. ^{[122
]}

Appelshauser, H. ^{[77
]}

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

Arnaldi, R. ^{[66
]}

Arnold, O. W. ^{[49
,112
]}

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

Arslandok, M. ^{[111
]}

Audurier, B. ^{[122
]}

Augustinus, A. ^{[48
]}

Averbeck, R. ^{[113
,114
]}

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

Badala, A. ^{[36
]}

Baek, Y. W. ^{[67
,85
]}

Bagnasco, S. ^{[66
]}

Bailhache, R. ^{[77
]}

Bala, R. ^{[108
]}

机构：

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

[2] Benemerita Univ Autonoma Puebla, Puebla, Mexico

[3] Bogolyubov Inst Theoret Phys, Kiev, Ukraine

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

[5] 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] Ctr Calcul IN2P3, Lyon, France

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

[11] Ctr Invest Energet Medioambientales & Tecnol CIEM, Madrid, Spain

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

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

[14] Chicago State Univ, Chicago, IL USA

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

[16] CIIT Ctr Hlth Res, Islamabad, Pakistan

[17] Univ Santiago Compostela, Dept Fis Particulas, 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] Ist Nazl Fis Nucl, Sez Roma, Rome, Italy

[27] Univ Cagliari, Dipartimento Fis, Cagliari, Italy

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

[29] Univ Trieste, Dipartimento Fis, Trieste, Italy

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

[31] Univ Turin, Dipartimento Fis, Turin, Italy

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

[33] Univ Bologna, Dipartimento Fis & Astron, Bologna, Italy

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

[35] Catania Univ, Dipartimento Fis & Astron, Catania, Italy

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

[37] Univ Padua, Dipartimento Fis & Astron, Padua, Italy

[38] Ist Nazl Fis Nucl, Sez Padova, Padua, Italy

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

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

[41] Dipartimento DISAT Politecn, Turin, Italy

[42] Ist Nazl Fis Nucl, Sez Turin, Turin, Italy

[43] Universita Piemonte Orientale, Dipartimento Sci & Innovaz Tecnol, Alessandria, Italy

[44] Ist Nazl Fis Nucl, Sez Torino, Alessandria, Italy

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

[46] Ist Nazl Fis Nucl, Sez Bari, Bari, Italy

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

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

[49] Tech Univ Miinchen, Excellence Cluster Universe, Munich, Germany

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

来源：

PHYSICS LETTERS B | 2018年 / 781卷

基金：

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

关键词：

PROTON-PROTON COLLISIONS; PARTICLE-PRODUCTION; BARYON PRODUCTION; MESON PRODUCTION; CROSS-SECTIONS; HEAVY; LIFETIME; DECAYS; FRAGMENTATION; RAPIDITY;

D O I：

10.1016/j.physletb.2018.03.061

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The production of the charm-strange baryon Xi(0)(c) is measured for the first time at the LHC via its semileptonic decay into e(+) Xi(-) nu(e) in ppcollisions at root s = 7 TeV with the ALICE detector. The transverse momentum ( p(T)) differential cross section multiplied by the branching ratio is presented in the interval 1 < p(T)< 8 GeV/c at mid-rapidity, vertical bar y vertical bar < 0.5. The transverse momentum dependence of the Xi(0)(c) baryon production relative to the D-0 meson production is compared to predictions of event generators with various tunes of the hadronisation mechanism, which are found to underestimate the measured cross-section ratio. (C) 2018 The Author(s). Published by Elsevier B.V.

引用

页码：8 / 19

页数：12

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