Evidence for Two Excited ω- Hyperons

BESIII Collaboration

doi:10.1103/PhysRevLett.134.131903

Evidence for Two Excited ω- Hyperons

BESIII Collaboration

Instituto de Alta Investigación

CAS - Institute of High Energy Physics
Budker Institute of Nuclear Physics of the Siberian Branch of the RAS
Novosibirsk State University
Uppsala University
Ruhr University Bochum
Chinese Academy of Sciences
Zhengzhou University
Johannes Gutenberg University Mainz
University of Turin
National Institute for Nuclear Physics
Southeast University, Nanjing
Joint Institute for Nuclear Research
Peking University
University of Chinese Academy of Sciences
National Centre for Nuclear Research
Mongolian Academy of Sciences
Carnegie Mellon University
University of Münster
Wuhan University
University of Science and Technology of China
Istanbul University
Nankai University
Moscow Institute of Physics and Technology
China University of Geosciences, Wuhan
Soochow University
Henan University
Nanjing University
North China Electric Power University
Tsinghua University
CAS - Institute of Modern Physics
Jilin University
Hunan University
Chung-Ang University
Shandong University
Yunnan University
Helmholtz Institute Mainz
University of South China
University of Jinan
Liaoning University
Sun Yat-Sen University
University of Eastern Piedmont
Nanjing Normal University
University of Ferrara
Henan Normal University
University of Manchester
University of Oxford
GSI Helmholtz Centre for Heavy Ion Research
Guangxi University
Shandong Normal University
Fudan University
Indiana University Bloomington
University of Hawai'i at Mānoa
Suranaree University of Technology
South China Normal University
University of the Punjab
Liaoning Normal University
Hangzhou Normal University
Huangshan College
University of Groningen
Indian Institute of Technology Madras
Justus Liebig University Giessen
Qufu Normal University
Renmin University of China
Lanzhou University
Hebei University
China Center of Advanced Science and Technology World Laboratory
Sichuan University
Guangxi Normal University
Shanxi University
Central China Normal University
Henan University of Science and Technology
Henan University of Technology
Central South University
Zhejiang University
Goethe University Frankfurt
COMSATS University Islamabad
IBA
University of Perugia
Universidad de Tarapacá
Petersburg Nuclear Physics Institute (PNPI)
Hunan Normal University
Swiss Federal Institute of Technology Lausanne
Shanghai Jiao Tong University
Ministry of Education of the People's Republic of China
Near East University
Beihang University
Inner Mongolia University
Yantai University
University of Bristol
Shanxi Normal University
University of Science and Technology Liaoning

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Resumen

Using e+e- collision data corresponding to an integrated luminosity of 19 fb-1 collected by the BESIII detector at center-of-mass energies ranging from 4.13 to 4.70 GeV, we report the first evidence for a new excited ω- hyperon, the ω(2109)-, through the process e+e-→ω(2109)-ω¯++c. c. with a significance of 4.1σ. The mass and width of ω(2109)- are measured to be 2108.5±5.2stat±0.9syst MeV/c2 and 18.3±16.4stat±5.7syst MeV, respectively. We also present evidence for a new production mechanism for the previously identified ω(2012)- via the process e+e-→ω(2012)-ω¯++c. c. with a significance of 3.5σ.

Idioma original	Inglés
Número de artículo	131903
Publicación	Physical Review Letters
Volumen	134
N.º	13
DOI	https://doi.org/10.1103/PhysRevLett.134.131903
Estado	Publicada - 4 abr. 2025

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title = "Evidence for Two Excited ω- Hyperons",

abstract = "Using e+e- collision data corresponding to an integrated luminosity of 19 fb-1 collected by the BESIII detector at center-of-mass energies ranging from 4.13 to 4.70 GeV, we report the first evidence for a new excited ω- hyperon, the ω(2109)-, through the process e+e-→ω(2109)-ω¯++c. c. with a significance of 4.1σ. The mass and width of ω(2109)- are measured to be 2108.5±5.2stat±0.9syst MeV/c2 and 18.3±16.4stat±5.7syst MeV, respectively. We also present evidence for a new production mechanism for the previously identified ω(2012)- via the process e+e-→ω(2012)-ω¯++c. c. with a significance of 3.5σ.",

author = "M. Ablikim and Achasov, \{M. N.\} and P. Adlarson and O. Afedulidis and S. Kabana and \{The BESIII collaboration\}",

note = "Publisher Copyright: {\textcopyright} 2025 authors. Published by the American Physical Society. ",

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doi = "10.1103/PhysRevLett.134.131903",

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T1 - Evidence for Two Excited ω- Hyperons

AU - Ablikim, M.

AU - Achasov, M. N.

AU - Adlarson, P.

AU - Afedulidis, O.

AU - Kabana, S.

AU - The BESIII collaboration

PY - 2025/4/4

Y1 - 2025/4/4

N2 - Using e+e- collision data corresponding to an integrated luminosity of 19 fb-1 collected by the BESIII detector at center-of-mass energies ranging from 4.13 to 4.70 GeV, we report the first evidence for a new excited ω- hyperon, the ω(2109)-, through the process e+e-→ω(2109)-ω¯++c. c. with a significance of 4.1σ. The mass and width of ω(2109)- are measured to be 2108.5±5.2stat±0.9syst MeV/c2 and 18.3±16.4stat±5.7syst MeV, respectively. We also present evidence for a new production mechanism for the previously identified ω(2012)- via the process e+e-→ω(2012)-ω¯++c. c. with a significance of 3.5σ.

AB - Using e+e- collision data corresponding to an integrated luminosity of 19 fb-1 collected by the BESIII detector at center-of-mass energies ranging from 4.13 to 4.70 GeV, we report the first evidence for a new excited ω- hyperon, the ω(2109)-, through the process e+e-→ω(2109)-ω¯++c. c. with a significance of 4.1σ. The mass and width of ω(2109)- are measured to be 2108.5±5.2stat±0.9syst MeV/c2 and 18.3±16.4stat±5.7syst MeV, respectively. We also present evidence for a new production mechanism for the previously identified ω(2012)- via the process e+e-→ω(2012)-ω¯++c. c. with a significance of 3.5σ.

UR - https://www.scopus.com/pages/publications/105003771746

U2 - 10.1103/PhysRevLett.134.131903

DO - 10.1103/PhysRevLett.134.131903

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SN - 0031-9007

VL - 134

JO - Physical Review Letters

JF - Physical Review Letters

IS - 13

M1 - 131903

ER -

Evidence for Two Excited ω- Hyperons

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