Investigating Λ baryon production in p-Pb collisions in jets and the underlying event using angular correlations

被引：0

作者：

Acharya, S. ^{[140
]}

Adamova, D. ^{[97
]}

Agarwal, A. ^{[148
]}

Rinella, G. Aglieri ^{[43
]}

Aglietta, L. ^{[28
,29
]}

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

Agrawal, N. ^{[30
,31
]}

Ahammed, Z. ^{[148
]}

Ahmad, S. ^{[17
]}

Ahn, S. U. ^{[82
]}

Ahuja, I. ^{[48
]}

Akindinov, A. ^{[154
]}

Akishina, V. ^{[49
]}

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

Aleksandrov, D. ^{[154
]}

Alessandro, B. ^{[67
]}

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

Alfaro Molina, R. ^{[78
]}

Ali, B. ^{[17
]}

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

Alizadehvandchali, N. ^{[129
]}

Alkin, A. ^{[55
,117
]}

Alme, J. ^{[22
]}

Alocco, G. ^{[63
]}

Alt, T. ^{[75
]}

Altamura, A. R. ^{[61
]}

Altsybeev, I. ^{[107
]}

Alvarado, J. R. ^{[55
]}

Alvarez, C. O. R. ^{[55
]}

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

Andrei, C. ^{[56
]}

Andreou, N. ^{[128
]}

Andronic, A. ^{[139
]}

Andronov, E. ^{[154
]}

Anguelov, V. ^{[106
]}

Antinori, F. ^{[65
]}

Antonioli, P. ^{[62
]}

Apadula, N. ^{[85
]}

Aphecetche, L. ^{[116
]}

Appelshaeuser, H. ^{[75
]}

Arata, C. ^{[84
]}

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

Aresti, M. ^{[24
,25
]}

Arnaldi, R. ^{[67
]}

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

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

Arslandok, M. ^{[151
]}

Augustinus, A. ^{[43
]}

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

Averyanov, D. ^{[154
]}

机构：

[1] Yerevan Phys Inst Fdn, AI Alikhanyan Natl Sci Lab, 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 93407 USA

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

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

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

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

[11] Chicago State Univ, Chicago, IL USA

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

[13] China Univ Geosci, Wuhan, Peoples R China

[14] Chungbuk Natl Univ, Cheongju, South Korea

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

[16] Creighton Univ, Omaha, NE 68178 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 94720 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] INFN, Grp Collegato, 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] CERN, European Org Nucl Res, 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] Univ Sofia, 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：

PHYSICAL REVIEW C | 2025年 / 111卷 / 01期

基金：

奥地利科学基金会; 美国能源部; 芬兰科学院; 新加坡国家研究基金会; 瑞典研究理事会; 巴西圣保罗研究基金会; 欧洲研究理事会; 中国国家自然科学基金; 日本学术振兴会;

关键词：

LONG-RANGE; CHARGED-PARTICLES; GLUON JETS; NEAR-SIDE; PROTON; QUARK; PION; DISTRIBUTIONS; MULTIPLICITY; DEPENDENCE;

D O I：

暂无

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

First measurements of hadron- Lambda(h-Lambda) azimuthal angular correlations in p-Pb collisions at root s(NN) = 5.02 TeV using the ALICE detector at the Large Hadron Collider are presented. These correlations are used to separate the production of associated Lambda baryons into three different kinematic regions, namely those produced in the direction of the trigger particle (near side), those produced in the opposite direction (away side), and those whose production is uncorrelated with the jet axis (underlying event). The per-trigger associated Lambda yields in these regions are extracted, along with the near- and away-side azimuthal peak widths, and the results are studied as a function of associated particle pT and event multiplicity. Comparisons with the DPMJET event generator and previous measurements of the phi(1020) meson are also made. The final results indicate that strangeness production in the highest multiplicity p-Pb collisions is enhanced relative to low multiplicity collisions in both the jetlike regions and the underlying event. The production of Lambda relative to charged hadrons is also enhanced in the underlying event when compared to the jetlike regions. Additionally, the results hint that strange quark production in the away-side of the jet is modified by soft interactions with the underlying event.

引用

页数：22