Measurement of the transverse-momentum fraction of strange hadrons from jet-like correlation structures in pp collisions at s=13 TeV

N.ZurloThe ALICE Collaboration

doi:10.1016/j.physletb.2026.140766

Measurement of the transverse-momentum fraction of strange hadrons from jet-like correlation structures in pp collisions at s=13 TeV

N.ZurloThe ALICE Collaboration

Chair of Nuclear Physics

Wayne State University
University of Houston
Istituto Nazionale di Fisica Nucleare, Sezione di Bari
INFN- Sezione di Trieste
European Organization for Nuclear Research
INFN Sez. di Torino
Istituto Nazionale di Fisica Nucleare, Sezione di Bologna
VECC Kolkata
Aligarh Muslim University
P. J. Safarik University
BRIN
Frankfurt Institute for Advanced Studies
GSI Helmholtz Center
Suranaree University of Technology
Universidad Nacional Autónoma de México
University of Bergen
Johann Wolfgang Goethe University
Technical University of Munich
Horia Hulubei National Institute of Physics and Nuclear Engineering
University of Derby
University of Münster
Heidelberg University
Dipartimento di Fisica 'G. Galilei' and INFN
Lawrence Berkeley National Laboratory
University of Oslo
Yale University
University of Tokyo
Laboratori Nazionali Del Sud
Sungkyunkwan University
University of Science and Technology of China
University of Lyon
University of Jammu
University Paris-Sud
Univ of Mining and Metallurgy
University of Kansas
Gauhati University
Wigner Research Centre for Physics
l'institut du thorax
LAIC, Université d'Auvergne
University of São Paulo
Czech Technical University in Prague
The Indian Institute of Technology Bombay
Pontifical Catholic University of Peru San Miguel
Niels Bohr Institutet
Indian Institute of Technology Indore
Homi Bhabha National Institute
Institut Pluridisciplinaire Hubert Curien
Universidad Autonoma de Sinaloa
Benemerita Universidad Autonoma de Puebla
Marietta Blau Institute
Panjab University
Nuclear Physics Institute of the Cas
Bose Institute
Oak Ridge National Laboratory
Istituto Nazionale di Fisica Nucleare, Sezione di Pavia
University of Brescia
Sejong University
Institute of Space Sciences
Politecnico di Bari
Sofia University
STFC Daresbury Laboratory
National Research Foundation
University of the Witwatersrand, Johannesburg
Sezione INFN di Roma La Sapienza
University Politehnica of Bucharest
University of Birmingham
Warsaw Institute of Technology
University of Liverpool
Fudan University
Central China Normal University
Inha University
Pusan National University
Science Park 105
Lund University
Tsukuba University
Sezione INFN di Cagliari
University of Grenoble Alpes
University of Eastern Piedmont
UFABC
University of Pavia
University of California at Berkeley
University of Foggia
Rheinische Friedrich-Wilhelms-Universität Bonn
Comenius University
Hiroshima University
INFN, Laboratori Nazionali Di Frascati
University of Texas at Austin
Saga University
Chicago State University
UFRGS
University of Tennessee
University of Split
the University of Utrecht
A.I. Alikhanyan National Science Laboratory (YerPhi)
China Institute of Atomic Energy
Nara Women's University
Nagasaki Institute of Applied Science
Yonsei University
University of South-Eastern Norway
University of Jyväskylä
Faculty of Technology
CINVESTAV
China University of Geosciences
Ohio State University
University of Zagreb
Technical University of Košice
University of Campinas
Instituto de Ciencias Nucleares de la UNAM
Institute of Experimental Physics Slovak Academy of Sciences
Chungbuk National University
Yildiz Technical University
Chonbuk National University
California Polytechnic State University, San Luis Obispo
Henryk Niewodniczanski Institute of Nuclear Physics Polish Academy of Sciences
National Center for Nuclear Research (NCBJ)
Dipartimento di Fisica e Astronomia dell’Università and Sezione INFN
Centro de Aplicaciones Tecnológicas y Desarrollo Nuclear
Multimedia and Distributed Systems Laboratory
University of Helsinki and Helsinki Institute of Physics
University of Cape Town
University of Silesia
Creighton University
National Nuclear Research Center
Korea Institute of Science and Technology Information
University of Tübingen
Bogolyubov Institute for Theoretical Physics Nasu
Institute of Physics of the Czech Academy of Sciences

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

Abstract

The first measurements of the average transverse-momentum fraction (⟨ z ⟩) as a function of transverse momentum (p _T) for strange baryons (Λ and Λ‾) and strange mesons (K_S⁰), produced in mini-jets defined through angular correlations in pp collisions at s=13 TeV, are reported by the ALICE Collaboration at the LHC. The observable is obtained using a novel method, where the angular correlation between the strange hadrons and inclusive charged hadrons is weighted by the p _T of correlated particles at small angular distance. As a function of strange particles’ p _T, the results reveal a flat trend for strange mesons and a decreasing trend for strange baryons in the measured p _T region, indicating distinct hadronization mechanisms for K_S⁰ and Λ (Λ‾). The measurements are compared to Monte Carlo models, namely Pythia 8 (with both Monash and Color Rope tunes) and the AMPT (A Multi-Phase Transport) model with string melting. None of these models provides a satisfactory description of the ⟨ z ⟩ distributions at low and intermediate p _T.

Original language	English
Article number	140766
Journal	Physics Letters B
Volume	880
DOIs	https://doi.org/10.1016/j.physletb.2026.140766
State	Published - Sep 2026

Keywords

Hadronization
Jet fragmentation
Strangeness
Transverse-momentum fraction
Two-particle correlations

Access to Document

10.1016/j.physletb.2026.140766

Cite this

@article{7643149d9208467696c976399b989600,

title = "Measurement of the transverse-momentum fraction of strange hadrons from jet-like correlation structures in pp collisions at s=13 TeV",

abstract = "The first measurements of the average transverse-momentum fraction (⟨ z ⟩) as a function of transverse momentum (p T) for strange baryons (Λ and Λ‾) and strange mesons (KS0), produced in mini-jets defined through angular correlations in pp collisions at s=13 TeV, are reported by the ALICE Collaboration at the LHC. The observable is obtained using a novel method, where the angular correlation between the strange hadrons and inclusive charged hadrons is weighted by the p T of correlated particles at small angular distance. As a function of strange particles{\textquoteright} p T, the results reveal a flat trend for strange mesons and a decreasing trend for strange baryons in the measured p T region, indicating distinct hadronization mechanisms for KS0 and Λ (Λ‾). The measurements are compared to Monte Carlo models, namely Pythia 8 (with both Monash and Color Rope tunes) and the AMPT (A Multi-Phase Transport) model with string melting. None of these models provides a satisfactory description of the ⟨ z ⟩ distributions at low and intermediate p T.",

keywords = "Hadronization, Jet fragmentation, Strangeness, Transverse-momentum fraction, Two-particle correlations",

author = "\{N.ZurloThe ALICE Collaboration\} and Abdallah, \{D. A.H.\} and Abualrob, \{I. J.\} and S. Acharya and K. Agarwal and \{Aglieri Rinella\}, G. and L. Aglietta and N. Agrawal and Z. Ahammed and S. Ahmad and I. Ahuja and Z. Akbar and V. Akishina and M. Al-Turany and B. Alessandro and Alfarasyi, \{A. R.\} and \{Alfaro Molina\}, R. and B. Ali and A. Alici and J. Alme and G. Alocco and T. Alt and I. Altsybeev and C. Andrei and N. Andreou and A. Andronic and M. Angeletti and V. Anguelov and F. Antinori and P. Antonioli and N. Apadula and H. Appelsh{\"a}user and S. Arcelli and R. Arnaldi and Arsene, \{I. C.\} and M. Arslandok and A. Augustinus and R. Averbeck and Azmi, \{M. D.\} and H. Baba and Babu, \{A. R.J.\} and A. Badal{\`a} and J. Bae and Y. Bae and Baek, \{Y. W.\} and X. Bai and R. Bailhache and Y. Bailung and R. Bala and A. Baldisseri and L. Fabbietti",

note = "Publisher Copyright: {\textcopyright} 2026 The Authors.",

year = "2026",

month = sep,

doi = "10.1016/j.physletb.2026.140766",

language = "English",

volume = "880",

journal = "Physics Letters B",

issn = "0370-2693",

publisher = "Elsevier B.V.",

}

TY - JOUR

T1 - Measurement of the transverse-momentum fraction of strange hadrons from jet-like correlation structures in pp collisions at s=13 TeV

AU - N.ZurloThe ALICE Collaboration

AU - Abdallah, D. A.H.

AU - Abualrob, I. J.

AU - Acharya, S.

AU - Agarwal, K.

AU - Aglieri Rinella, G.

AU - Aglietta, L.

AU - Agrawal, N.

AU - Ahammed, Z.

AU - Ahmad, S.

AU - Ahuja, I.

AU - Akbar, Z.

AU - Akishina, V.

AU - Al-Turany, M.

AU - Alessandro, B.

AU - Alfarasyi, A. R.

AU - Alfaro Molina, R.

AU - Ali, B.

AU - Alici, A.

AU - Alme, J.

AU - Alocco, G.

AU - Alt, T.

AU - Altsybeev, I.

AU - Andrei, C.

AU - Andreou, N.

AU - Andronic, A.

AU - Angeletti, M.

AU - Anguelov, V.

AU - Antinori, F.

AU - Antonioli, P.

AU - Apadula, N.

AU - Appelshäuser, H.

AU - Arcelli, S.

AU - Arnaldi, R.

AU - Arsene, I. C.

AU - Arslandok, M.

AU - Augustinus, A.

AU - Averbeck, R.

AU - Azmi, M. D.

AU - Baba, H.

AU - Babu, A. R.J.

AU - Badalà, A.

AU - Bae, J.

AU - Bae, Y.

AU - Baek, Y. W.

AU - Bai, X.

AU - Bailhache, R.

AU - Bailung, Y.

AU - Bala, R.

AU - Baldisseri, A.

AU - Fabbietti, L.

PY - 2026/9

Y1 - 2026/9

N2 - The first measurements of the average transverse-momentum fraction (⟨ z ⟩) as a function of transverse momentum (p T) for strange baryons (Λ and Λ‾) and strange mesons (KS0), produced in mini-jets defined through angular correlations in pp collisions at s=13 TeV, are reported by the ALICE Collaboration at the LHC. The observable is obtained using a novel method, where the angular correlation between the strange hadrons and inclusive charged hadrons is weighted by the p T of correlated particles at small angular distance. As a function of strange particles’ p T, the results reveal a flat trend for strange mesons and a decreasing trend for strange baryons in the measured p T region, indicating distinct hadronization mechanisms for KS0 and Λ (Λ‾). The measurements are compared to Monte Carlo models, namely Pythia 8 (with both Monash and Color Rope tunes) and the AMPT (A Multi-Phase Transport) model with string melting. None of these models provides a satisfactory description of the ⟨ z ⟩ distributions at low and intermediate p T.

AB - The first measurements of the average transverse-momentum fraction (⟨ z ⟩) as a function of transverse momentum (p T) for strange baryons (Λ and Λ‾) and strange mesons (KS0), produced in mini-jets defined through angular correlations in pp collisions at s=13 TeV, are reported by the ALICE Collaboration at the LHC. The observable is obtained using a novel method, where the angular correlation between the strange hadrons and inclusive charged hadrons is weighted by the p T of correlated particles at small angular distance. As a function of strange particles’ p T, the results reveal a flat trend for strange mesons and a decreasing trend for strange baryons in the measured p T region, indicating distinct hadronization mechanisms for KS0 and Λ (Λ‾). The measurements are compared to Monte Carlo models, namely Pythia 8 (with both Monash and Color Rope tunes) and the AMPT (A Multi-Phase Transport) model with string melting. None of these models provides a satisfactory description of the ⟨ z ⟩ distributions at low and intermediate p T.

KW - Hadronization

KW - Jet fragmentation

KW - Strangeness

KW - Transverse-momentum fraction

KW - Two-particle correlations

UR - https://www.scopus.com/pages/publications/105046987335

U2 - 10.1016/j.physletb.2026.140766

DO - 10.1016/j.physletb.2026.140766

M3 - Article

AN - SCOPUS:105046987335

SN - 0370-2693

VL - 880

JO - Physics Letters B

JF - Physics Letters B

M1 - 140766

ER -

Measurement of the transverse-momentum fraction of strange hadrons from jet-like correlation structures in pp collisions at s=13 TeV

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this