Underlying-event studies with strange hadrons in pp collisions at s=13 TeV with the ATLAS detector

ATLAS Collaboration

doi:10.1140/epjc/s10052-024-13243-1

Underlying-event studies with strange hadrons in pp collisions at s=13 TeV with the ATLAS detector

ATLAS Collaboration

iThemba Labs
Department of Physics
University of South Africa
University of Zululand
Cadi Ayyad University
Departamento de Física Teórica y del Cosmos
University of Granada
CERN
Columbia University
Demokritos National Centre for Scientific Research
University of Sheffield
Harvard University
University of Bologna
National Institute for Nuclear Physics
University of Belgrade
University of Siegen
Heidelberg University
CAS - Institute of High Energy Physics
University of Science and Technology of China
Shanghai Jiao Tong University
University of Michigan, Ann Arbor
Shandong University
University of Arizona
Tsinghua University
Nanjing University
University of Illinois
SLAC National Accelerator Laboratory
University of California at Santa Cruz
University of Washington
Université Paris-Saclay
Lawrence Berkeley National Laboratory
University College London
The University of Tokyo
CNRS
University of Wisconsin
University of the Witwatersrand
University of Chinese Academy of Sciences
Argonne National Laboratory
University of Hassan II Casablanca
Queen Mary University of London
Comenius University
Brandeis University
University of Wuppertal
Czech Technical University in Prague
University of Freiburg
Millennium Institute for Subatomic physics at high energy frontier (SAPHIR)
Universidad Andrés Bello
University of Geneva
Carleton University
University of Valencia
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University of Edinburgh
Horia Hulubei National Institute of Physics and Nuclear Engineering
Waseda University
University of Oxford
University of California at Berkeley
United States Department of Energy
University of Göttingen
Southern Methodist University
Hong Kong University of Science and Technology
University of Massachusetts
University of Glasgow
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University of Tsukuba
Tokyo Institute of Technology
University of Cape Town
University of Sydney
University of Pennsylvania School of Arts and Sciences
University of Oregon
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Max Planck Institute for Physics (Werner Heisenberg Institute)
Technical University of Munich
Université Savoie Mont Blanc
Radboud University Nijmegen
Sun Yat-Sen University
University of Birmingham
German Electron Synchrotron
Laboratório de Instrumentação e Física Experimental de Partículas
University of Coimbra
University of California at Irvine
University of Amsterdam
Université Grenoble Alpes
Louisiana Tech University
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Aristotle University of Thessaloniki
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Simon Fraser University
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University of Pisa
University of Salento
University of Toronto
California State University Los Angeles
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High Energy Accelerator Research Organization, Tsukuba
Tel Aviv University
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National Institute for Research and Development of Isotopic and Molecular Technologies
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University of Alberta
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Ilia State University
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Yeditepe University
Azerbaijan National Academy of Sciences
University Politehnica of Bucharest
Ibn Tofail University
West University of Timisoara
The University of Georgia, Tbilisi
Enrico Fermi Center
University of the Aegean
National Institute of Physics, College of Science, University of the Philippines, Diliman
City University of New York
Abdus Salam International Centre for Theoretical Physics
University of Bucharest
University of Naples Parthenope
Sofia University
The Collaborative Innovation Center of Quantum Matter (CICQM)
Autonomous University of Barcelona
Westmont College
Gaziantep University
University of Fribourg
An-Najah National University
University of Thessaly
Lawrence Livermore National Laboratory
Zhengzhou University
Istanbul University
King's College London

Research output: Contribution to journal › Article › peer-review

6 Citations (Scopus)

Abstract

Properties of the underlying-event in pp interactions are investigated primarily via the strange hadrons KS0, Λ and Λ¯, as reconstructed using the ATLAS detector at the LHC in minimum-bias pp collision data at s=13 TeV. The hadrons are reconstructed via the identification of the displaced two-particle vertices corresponding to the decay modes, Λ→π-p and Λ¯→π+p¯. These are used in the construction of underlying-event observables in azimuthal regions computed relative to the leading charged-particle jet in the event. None of the hadronisation and underlying-event physics models considered can describe the data over the full kinematic range considered. Events with a leading charged-particle jet in the range of 10<pT≤40 GeV are studied using the number of prompt charged particles in the transverse region. The ratio N(Λ+Λ¯)/N(KS0) as a function of the number of such charged particles varies only slightly over this range. This disagrees with the expectations of some of the considered Monte Carlo models.

Original language	English
Article number	1335
Journal	European Physical Journal C
Volume	84
Issue number	12
DOIs	https://doi.org/10.1140/epjc/s10052-024-13243-1
Publication status	Published - Dec 2024

ASJC Scopus subject areas

Engineering (miscellaneous)
Physics and Astronomy (miscellaneous)

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10.1140/epjc/s10052-024-13243-1

Cite this

@article{b112a72865ef48348252eeb6cb145202,

title = "Underlying-event studies with strange hadrons in pp collisions at s=13 TeV with the ATLAS detector",

abstract = "Properties of the underlying-event in pp interactions are investigated primarily via the strange hadrons KS0, Λ and Λ¯, as reconstructed using the ATLAS detector at the LHC in minimum-bias pp collision data at s=13 TeV. The hadrons are reconstructed via the identification of the displaced two-particle vertices corresponding to the decay modes, Λ→π-p and Λ¯→π+p¯. These are used in the construction of underlying-event observables in azimuthal regions computed relative to the leading charged-particle jet in the event. None of the hadronisation and underlying-event physics models considered can describe the data over the full kinematic range considered. Events with a leading charged-particle jet in the range of 10",

author = "ATLAS Collaboration and L. Zwalinski and W. Zou and O. Zormpa and Zorbas, \{T. G.\} and K. Zoch and A. Zoccoli and L. {\v Z}ivkovi{\'c} and M. Ziolkowski and J. Zinsser and Zimine, \{N. I.\} and K. Zhukov and X. Zhuang and Y. Zhu and Y. Zhu and X. Zhu and J. Zhu and Zhu, \{C. G.\} and Y. Zhou and Y. Zhou and N. Zhou and H. Zhou and B. Zhou and D. Zhong and Z. Zheng and X. Zheng and K. Zheng and J. Zheng and A. Zhemchugov and Z. Zhao and Z. Zhao and Y. Zhao and T. Zhao and H. Zhao and Z. Zhang and Z. Zhang and Z. Zhang and Y. Zhang and Y. Zhang and Y. Zhang and X. Zhang and X. Zhang and T. Zhang and S. Zhang and S. Zhang and R. Zhang and L. Truong and N. Govender and Gololo, \{M. G.D.\} and Connell, \{S. H.\} and M. Bhamjee",

note = "Publisher Copyright: {\textcopyright} The Author(s) 2024.",

year = "2024",

month = dec,

doi = "10.1140/epjc/s10052-024-13243-1",

language = "English",

volume = "84",

journal = "European Physical Journal C",

issn = "1434-6044",

publisher = "Springer Nature",

number = "12",

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T1 - Underlying-event studies with strange hadrons in pp collisions at s=13 TeV with the ATLAS detector

AU - ATLAS Collaboration

AU - Zwalinski, L.

AU - Zou, W.

AU - Zormpa, O.

AU - Zorbas, T. G.

AU - Zoch, K.

AU - Zoccoli, A.

AU - Živković, L.

AU - Ziolkowski, M.

AU - Zinsser, J.

AU - Zimine, N. I.

AU - Zhukov, K.

AU - Zhuang, X.

AU - Zhu, Y.

AU - Zhu, X.

AU - Zhu, J.

AU - Zhu, C. G.

AU - Zhou, Y.

AU - Zhou, N.

AU - Zhou, H.

AU - Zhou, B.

AU - Zhong, D.

AU - Zheng, Z.

AU - Zheng, X.

AU - Zheng, K.

AU - Zheng, J.

AU - Zhemchugov, A.

AU - Zhao, Z.

AU - Zhao, Y.

AU - Zhao, T.

AU - Zhao, H.

AU - Zhang, Z.

AU - Zhang, Y.

AU - Zhang, X.

AU - Zhang, T.

AU - Zhang, S.

AU - Zhang, R.

AU - Truong, L.

AU - Govender, N.

AU - Gololo, M. G.D.

AU - Connell, S. H.

AU - Bhamjee, M.

PY - 2024/12

Y1 - 2024/12

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AB - Properties of the underlying-event in pp interactions are investigated primarily via the strange hadrons KS0, Λ and Λ¯, as reconstructed using the ATLAS detector at the LHC in minimum-bias pp collision data at s=13 TeV. The hadrons are reconstructed via the identification of the displaced two-particle vertices corresponding to the decay modes, Λ→π-p and Λ¯→π+p¯. These are used in the construction of underlying-event observables in azimuthal regions computed relative to the leading charged-particle jet in the event. None of the hadronisation and underlying-event physics models considered can describe the data over the full kinematic range considered. Events with a leading charged-particle jet in the range of 10

UR - https://www.scopus.com/pages/publications/105012457889

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VL - 84

JO - European Physical Journal C

JF - European Physical Journal C

IS - 12

M1 - 1335

ER -

Underlying-event studies with strange hadrons in pp collisions at s=13 TeV with the ATLAS detector

Abstract

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