Skip to main content
OSTI.GOVU.S. Department of Energy Office of Scientific and Technical Information
U.S. Department of Energy
Office of Scientific and Technical Information
 

Measurement of the $$Ω_c^0$$ lifetime at Belle II

Journal Article · · Physical Review. D.
; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; more »; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; « less
We report on a measurement of the $$Ω_c^0$$ lifetime using $$Ω_c^0$$ → Ω-π+ decays reconstructed in c data collected by the Belle II experiment and corresponding to 207 fb-1 of integrated e+e- → c luminosity. The result, τ ($$Ω_c^0$$) = 243 ± 48 (stat) ± 11 (syst) fs, agrees with recent measurements indicating that the $$Ω_c^0$$ is not the shortest-lived weakly decaying charmed baryon.
Research Organization:
Brookhaven National Laboratory (BNL), Upton, NY (United States)
Sponsoring Organization:
USDOE Office of Science (SC), High Energy Physics (HEP)
Grant/Contract Number:
SC0012704
OSTI ID:
1960254
Report Number(s):
BNL-224084-2023-JAAM
Journal Information:
Physical Review. D., Journal Name: Physical Review. D. Vol. 107; ISSN 2470-0010
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English

References (23)

Charmed baryon lifetime differences journal June 1986
Erratum to: Dimension-six matrix elements for meson mixing and lifetimes from sum rules journal June 2020
Lifetimes of singly charmed hadrons journal July 2022
Phenomenological study of heavy hadron lifetimes journal November 2018
Dimension-six matrix elements for meson mixing and lifetimes from sum rules journal December 2017
The Belle II Core Software: Belle II Framework Software Group journal November 2018
First measurement of the lifetime of the journal September 1995
Measurement of the lifetime journal September 1995
The precision Monte Carlo event generator for two-fermion final states in collisions journal August 2000
The EvtGen particle decay simulation package journal April 2001
Geant4—a simulation toolkit
  • Agostinelli, S.; Allison, J.; Amako, K.
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 506, Issue 3 https://doi.org/10.1016/S0168-9002(03)01368-8
journal July 2003
An introduction to PYTHIA 8.2 journal June 2015
SuperKEKB collider
  • Akai, Kazunori; Furukawa, Kazuro; Koiso, Haruyo
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 907 https://doi.org/10.1016/j.nima.2018.08.017
journal November 2018
Global decay chain vertex fitting at Belle II
  • Krohn, J. -F.; Tenchini, F.; Urquijo, P.
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 976 https://doi.org/10.1016/j.nima.2020.164269
journal October 2020
Measurement of the lifetimes of promptly produced Ωc0 and Ξc0 baryons journal March 2022
The strangest lifetime: a bizarre story of τ(Ωc0) journal March 2022
Review of Particle Physics journal August 2020
D -meson lifetimes within the heavy quark expansion journal August 2013
Review of Particle Physics journal August 2018
Measurement of the Ω c 0 Baryon Lifetime journal August 2018
Topics in the Heavy Quark Expansion book April 2001
Decays and the Heavy-Quark Expansion book June 1998
Lifetimes and heavy quark expansion journal April 2015

Similar Records

First measurement of the lifetime of the omega(c)0
Journal Article · Thu Jun 01 00:00:00 EDT 1995 · Phys.Lett.B · OSTI ID:1864239
Measurement of branching fractions and search for CP violation in $D^0 → π^+π^-η, D^0 → K^+K^-η$, and $D^0 → Φη$ at Belle
Journal Article · Sun Sep 12 20:00:00 EDT 2021 · Journal of High Energy Physics (Online) · OSTI ID:1823610

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
Lepton colliders