Measurement of the Lifetime and Λ Separation Energy of HΛ3

ALICE Collaboration

doi:10.1103/PhysRevLett.131.102302

Measurement of the Lifetime and Λ Separation Energy of HΛ3

ALICE Collaboration

Sección de Física

Université Clermont Auvergne
Czech Academy of Sciences
Goethe University Frankfurt
CERN
Sezione INFN
National Institute for Nuclear Physics
Variable Energy Cyclotron Centre
Department of Physics Aligarh Muslim University
Korea Institute of Science and Technology Information
Pavol Jozef Šafárik University
GSI Helmholtzzentrum für Schwerionenforschung
Central China Normal University
Universidad Nacional Autónoma de México
COMSATS University Islamabad
University of Houston
University of Bergen
National Institute for Physics and Nuclear Engineering
University of Münster
Ruprecht-Karls-Universität Heidelberg
Lawrence Berkeley National Laboratory
Nantes Université
Université Grenoble Alpes
University of Oslo
Yale University
Dipartimento di Fisica e Astronomia dell'Università and Sezione INFN
Gangneung-Wonju National University
University of Science and Technology of China
Indian Institute of Technology Indore
University of Jammu
Université Paris-Saclay Centre d’ Études de Saclay (CEA)
AGH University of Krakow
Bose Institute
University of Catania
Technical University of Munich
National and Kapodistrian University of Athens
Wigner Research Centre for Physics
STFC Daresbury Laboratory
Universidade de São Paulo
University of Liverpool
University of Lund
Indian Institute of Technology Bombay
University of Copenhagen
Université de Strasbourg
Institute of Space Science (ISS)
Gauhati University
INFN, Laboratori Nazionali Di Frascati
Faculty of Nuclear Sciences and Physical Engineering
Henryk Niewodniczanski Institute of Nuclear Physics of the Polish Academy of Sciences
University of Texas at Austin
Frankfurt Institute for Advanced Studies
University of Pavia
Oak Ridge National Laboratory
Inha University
Università di Brescia
Polytechnic University of Bari
Austrian Academy of Sciences
National Research Foundation
University of the Witwatersrand
Pontifical Catholic Univ. of Peru
Universidad Autonoma de Sinaloa
National University of Science and Technology POLITEHNICA Bucharest
Université de Lyon
Homi Bhabha National Institute
Benemérita Universidad Autónoma de Puebla
Universidade Estadual de Campinas
Max-Planck-Institut für Physik
National Institute for Subatomic Physics
University of Tsukuba
Agenzia nazionale per le nuove tecnologie, l'energia e lo sviluppo economico sostenibile
University of Birmingham
Politecnico di Torino
Laboratoire de Physique des 2 Infinis Irène Joliot-Curie
Università del Piemonte Orientale and Gruppo Collegato INFN
Universidade Federal do ABC
Warsaw University of Technology
University of California at Berkeley
Centro de Aplicaciones Tecnológicas y Desarrollo Nuclear
University of Cape Town
Panjab University
Technical University of Košice
Comenius University
University of Zagreb
Saga University
Chicago State University
National Nuclear Research Center
University of Kansas
Universidade Federal do Rio Grande do Sul
University of Tennessee
Nagasaki Institute of Applied Science
Wayne State University
University of Split
Institute for Subatomic Physics of Utrecht University
A. Alikhanian Yerevan Institute of Physics
Tokyo University
Yonsei University
Rheinische Friedrich-Wilhelms-Universität Bonn
Western Norway University of Applied Sciences
Centro de Investigación y de Estudios AVanzados (CINVESTAV)
Creighton University
University of Jyväskylä
Ohio State University
National Research and Innovation Agency Republic of Indonesia
Suranaree University of Technology
Slovak Academy of Sciences
KTO Karatay University
Zentrum für Technologie und Transfer (ZTT)
Pusan National University
Jeonbuk National University
Sejong University
Hiroshima University
California Polytechnic State University, San Luis Obispo
Sofia University St. Kliment Ohridski
National Centre for Nuclear Studies
University of South-Eastern Norway
China Institute of Atomic Energy
Fudan University
University of Messina
Università degli Studi di Foggia
University of Helsinki
Chungbuk National University
University of Wrocław
Eberhard Karls Universität Tübingen
Nara Women's University
Bogolyubov Institute for Theoretical Physics Nasu
Institute of Physics of the Czech Academy of Sciences

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

32 Scopus citations

Abstract

The most precise measurements to date of the HΛ3 lifetime τ and Λ separation energy BΛ are obtained using the data sample of Pb-Pb collisions at sNN=5.02 TeV collected by ALICE at the LHC. The HΛ3 is reconstructed via its charged two-body mesonic decay channel (HΛ3→He3+π- and the charge-conjugate process). The measured values τ=[253±11(stat)±6(syst)] ps and BΛ=[102±63(stat)±67(syst)] keV are compatible with predictions from effective field theories and confirm that the HΛ3 structure is consistent with a weakly bound system.

Original language	English
Article number	102302
Journal	Physical Review Letters
Volume	131
Issue number	10
DOIs	https://doi.org/10.1103/PhysRevLett.131.102302
State	Published - 8 Sep 2023

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10.1103/PhysRevLett.131.102302

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@article{7b64a5d6627846968f2f6ea0f85de077,

title = "Measurement of the Lifetime and Λ Separation Energy of HΛ3",

abstract = "The most precise measurements to date of the HΛ3 lifetime τ and Λ separation energy BΛ are obtained using the data sample of Pb-Pb collisions at sNN=5.02 TeV collected by ALICE at the LHC. The HΛ3 is reconstructed via its charged two-body mesonic decay channel (HΛ3→He3+π- and the charge-conjugate process). The measured values τ=[253±11(stat)±6(syst)] ps and BΛ=[102±63(stat)±67(syst)] keV are compatible with predictions from effective field theories and confirm that the HΛ3 structure is consistent with a weakly bound system.",

author = "\{ALICE Collaboration\} and S. Acharya and D. Adamov{\'a} and A. Adler and \{Aglieri Rinella\}, G. and M. Agnello and N. Agrawal and Z. Ahammed and S. Ahmad and Ahn, \{S. U.\} and I. Ahuja and A. Akindinov and M. Al-Turany and D. Aleksandrov and B. Alessandro and Alfanda, \{H. M.\} and \{Alfaro Molina\}, R. and B. Ali and Y. Ali and A. Alici and N. Alizadehvandchali and A. Alkin and J. Alme and G. Alocco and T. Alt and I. Altsybeev and Anaam, \{M. N.\} and C. Andrei and A. Andronic and V. Anguelov and F. Antinori and P. Antonioli and C. Anuj and N. Apadula and L. Aphecetche and H. Appelsh{\"a}user and C. Arata and S. Arcelli and M. Aresti and R. Arnaldi and Arsene, \{I. C.\} and M. Arslandok and A. Augustinus and R. Averbeck and Azmi, \{M. D.\} and A. Badal{\`a} and Baek, \{Y. W.\} and X. Bai and R. Bailhache and \{Bazo Alba\}, \{J. L.\} and Gago, \{A. M.\}",

note = "Publisher Copyright: {\textcopyright} 2023 CERN.",

year = "2023",

month = sep,

day = "8",

doi = "10.1103/PhysRevLett.131.102302",

language = "English",

volume = "131",

journal = "Physical Review Letters",

issn = "0031-9007",

number = "10",

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TY - JOUR

T1 - Measurement of the Lifetime and Λ Separation Energy of HΛ3

AU - ALICE Collaboration

AU - Acharya, S.

AU - Adamová, D.

AU - Adler, A.

AU - Aglieri Rinella, G.

AU - Agnello, M.

AU - Agrawal, N.

AU - Ahammed, Z.

AU - Ahmad, S.

AU - Ahn, S. U.

AU - Ahuja, I.

AU - Akindinov, A.

AU - Al-Turany, M.

AU - Aleksandrov, D.

AU - Alessandro, B.

AU - Alfanda, H. M.

AU - Alfaro Molina, R.

AU - Ali, B.

AU - Ali, Y.

AU - Alici, A.

AU - Alizadehvandchali, N.

AU - Alkin, A.

AU - Alme, J.

AU - Alocco, G.

AU - Alt, T.

AU - Altsybeev, I.

AU - Anaam, M. N.

AU - Andrei, C.

AU - Andronic, A.

AU - Anguelov, V.

AU - Antinori, F.

AU - Antonioli, P.

AU - Anuj, C.

AU - Apadula, N.

AU - Aphecetche, L.

AU - Appelshäuser, H.

AU - Arata, C.

AU - Arcelli, S.

AU - Aresti, M.

AU - Arnaldi, R.

AU - Arsene, I. C.

AU - Arslandok, M.

AU - Augustinus, A.

AU - Averbeck, R.

AU - Azmi, M. D.

AU - Badalà, A.

AU - Baek, Y. W.

AU - Bai, X.

AU - Bailhache, R.

AU - Bazo Alba, J. L.

AU - Gago, A. M.

PY - 2023/9/8

Y1 - 2023/9/8

N2 - The most precise measurements to date of the HΛ3 lifetime τ and Λ separation energy BΛ are obtained using the data sample of Pb-Pb collisions at sNN=5.02 TeV collected by ALICE at the LHC. The HΛ3 is reconstructed via its charged two-body mesonic decay channel (HΛ3→He3+π- and the charge-conjugate process). The measured values τ=[253±11(stat)±6(syst)] ps and BΛ=[102±63(stat)±67(syst)] keV are compatible with predictions from effective field theories and confirm that the HΛ3 structure is consistent with a weakly bound system.

AB - The most precise measurements to date of the HΛ3 lifetime τ and Λ separation energy BΛ are obtained using the data sample of Pb-Pb collisions at sNN=5.02 TeV collected by ALICE at the LHC. The HΛ3 is reconstructed via its charged two-body mesonic decay channel (HΛ3→He3+π- and the charge-conjugate process). The measured values τ=[253±11(stat)±6(syst)] ps and BΛ=[102±63(stat)±67(syst)] keV are compatible with predictions from effective field theories and confirm that the HΛ3 structure is consistent with a weakly bound system.

UR - https://www.scopus.com/pages/publications/85172215558

U2 - 10.1103/PhysRevLett.131.102302

DO - 10.1103/PhysRevLett.131.102302

M3 - Article

C2 - 37739380

AN - SCOPUS:85172215558

SN - 0031-9007

VL - 131

JO - Physical Review Letters

JF - Physical Review Letters

IS - 10

M1 - 102302

ER -

Measurement of the Lifetime and Λ Separation Energy of HΛ3

Abstract

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