f0(980) production in inelastic pp collisions at √s=5.02 TeV

被引：5

作者：

Acharya, S. ^{[138
]}

Adamova, D. ^{[96
]}

Adler, A. ^{[80
]}

Rinella, G. Aglieri ^{[43
]}

Agnello, M. ^{[38
,39
]}

Agrawal, N. ^{[61
]}

Ahammed, Z. ^{[146
]}

Ahmad, S. ^{[17
]}

Ahn, S. U. ^{[81
]}

Ahuja, I. ^{[48
]}

Akindinov, A. ^{[154
]}

Al-Turany, M. ^{[109
,110
]}

Aleksandrov, D. ^{[154
]}

Alessandro, B. ^{[66
]}

Alfanda, H. M. ^{[7
]}

Molina, R. Alfaro ^{[77
]}

Ali, B. ^{[17
]}

Alici, A. ^{[30
,31
]}

Alizadehvandchali, N. ^{[127
]}

Alkin, A. ^{[43
]}

Alme, J. ^{[22
]}

Alocco, G. ^{[62
]}

Alt, T. ^{[74
]}

Altsybeev, I. ^{[154
]}

Anaam, M. N. ^{[7
]}

Andrei, C. ^{[56
]}

Andronic, A. ^{[149
]}

Anguelov, V. ^{[105
]}

Antinori, F. ^{[64
]}

Antonioli, P. ^{[61
]}

Apadula, N. ^{[84
]}

Aphecetche, L. ^{[116
]}

Appelshaeuser, H. ^{[74
]}

Arata, C. ^{[83
]}

Arcelli, S. ^{[30
,31
]}

Aresti, M. ^{[62
]}

Arnaldi, R. ^{[66
]}

Arneiro, J. G. M. C. A. ^{[123
]}

Arsene, I. C. ^{[21
]}

Arslandok, M. ^{[151
]}

Augustinus, A. ^{[43
]}

Averbeck, R. ^{[109
,110
]}

Azmi, M. D. ^{[17
]}

Badala, A. ^{[63
]}

Bae, J. ^{[117
]}

Baek, Y. W. ^{[51
]}

Bai, X. ^{[131
]}

Bailhache, R. ^{[74
]}

Bailung, Y. ^{[58
]}

Balbino, A. ^{[38
,39
]}

机构：

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

[2] AGH Univ Krakow, Krakow, Poland

[3] Natl Acad Sci Ukraine, Bogolyubov Inst Theoret Phys, Kiev, Ukraine

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

[5] Ctr Astroparticle Phys & Space Sci CAPSS, Kolkata, India

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

[7] Cent China Normal Univ, Wuhan, Peoples R China

[8] Ctr Aplicac Tecnol Desarrollo Nucl CEAD, Havana, Cuba

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

[10] Ctr Invest Estudios Avanzados CINVESTAV, Merida, Yucatan, Mexico

[11] Chicago State Univ, Chicago, IL USA

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

[13] Chungbuk Natl Univ, Cheongju, South Korea

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

[15] COMSATS Univ Islamabad, Islamabad, Pakistan

[16] Creighton Univ, Omaha, NE USA

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

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

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

[20] Univ Calif Berkeley, Dept Phys, Berkeley, CA USA

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

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

[23] Univ Pavia, Dipartimento Fis, Pavia, Italy

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

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

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

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

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

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

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

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

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

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

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

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

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

[37] Grp Collegato INFN, Salerno, Italy

[38] Politecn Torino, Dipartimento DISAT, Turin, Italy

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

[40] Univ Messina, Dipartimento Sci MIFT, Messina, Italy

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

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

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

[44] Univ Split, Fac Elect Engn Mech Engn & Naval Architecture, Split, Croatia

[45] Western Norway Univ Appl Sci, Fac Engn & Sci, Bergen, Norway

[46] Czech Tech Univ, Fac Nucl Sci & Phys Engn, Prague, Czech Republic

[47] Sofia Univ, Fac Phys, Sofia, Bulgaria

[48] Safarik Univ, Fac Sci, Kosice, Slovakia

[49] Goethe Univ Frankfurt, Frankfurt Inst Adv Studies, Frankfurt, Germany

[50] Fudan Univ, Shanghai, Peoples R China

来源：

PHYSICS LETTERS B | 2023年 / 846卷

基金：

中国国家自然科学基金; 美国能源部; 新加坡国家研究基金会; 美国国家科学基金会; 奥地利科学基金会; 芬兰科学院; 瑞典研究理事会; 欧洲研究理事会; 日本学术振兴会; 英国科学技术设施理事会; 巴西圣保罗研究基金会; 欧盟地平线“2020”;

关键词：

SUPERDENSE HADRONIC MATTER; PARTICLE-PRODUCTION; RADIATIVE DECAYS; SCALAR MESONS; MODEL; QCD; PHI; PHYSICS;

D O I：

10.1016/j.physletb.2022.137644

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The measurement of the production of f(0)(980) in inelastic pp collisions at root s= 5.02TeV is presented. This is the first reported measurement of inclusive f(0)(980) yield at LHC energies. The production is measured at midrapidity, vertical bar y vertical bar< 0.5, in a wide transverse momentum range, 0< p(T)< 16GeV/c, by reconstructing the resonance in the f(0)(980) -> pi(+) pi(-) hadronic decay channel using the ALICE detector. The p(T)-differential yields are compared to those of pions, protons and phi mesons as well as to predictions from the HERWIG7.2 QCD-inspired Monte Carlo event generator and calculations from a coalescence model that uses the AMPT model as an input. The ratio of the p(T)-integrated yield of f(0)(980) relative to pions is compared to measurements in e(+) e(-) and pp collisions at lower energies and predictions from statistical hadronisation models and HERWIG7.2. A mild collision energy dependence of the f(0)(980) to pion production is observed in pp collisions from SPS to LHC energies. All considered models underpredict the p(T)-integrated 2f(0)(980)/(pi(+)+pi(-)) ratio. The prediction from the canonical statistical hadronisation model assuming a zero total strangeness content of f(0)(980) is consistent with the data within 1.9 s and is the closest to the data. The results provide an essential reference for future measurements of the particle yield and nuclear modification in p-Pb and Pb-Pb collisions, which have been proposed to be instrumental to probe the elusive nature and quark composition of the f(0)(980) scalar meson. (c) 2022 The Author(s). Published by Elsevier B.V. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/). Funded by SCOAP(3).

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