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Measurements of six body hadronic decays of the D0 charmed meson

Journal Article · · Phys.Lett.B
Using data collected by the FOCUS experiment at Fermilab, we report the discovery of the decay modes D 0 → K – π + π + π + π – π – and D 0 → π + π + π + π – π – π – . With a sample of 48±10 reconstructed D 0 → K – π + π + π + π – π – decays and 149±17 reconstructed D 0 → π + π + π + π – π – π – decays, we measure the following relative branching ratios: Γ(D 0 →K – π + π + π + π – π – )/Γ(D 0 →K – π + π + π – )=(2.70±0.58±0.38)×10 –3 , Γ(D 0 →π + π + π + π – π – π – )/Γ(D 0 →K – π + π + π – )=(5.23±0.59±1.35)×10 –3 , Γ(D 0 →π + π + π + π – π – π – )/Γ(D 0 →K – π + π + π + π – π – )=1.93±0.47±0.48. The first errors are statistical and the second are systematic. The branching fraction of the Cabibbo suppressed six-body decay mode is measured to be a factor of two higher than the branching fraction of the Cabibbo favored six-body decay mode.
Research Organization:
Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States)
Sponsoring Organization:
USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
Contributing Organization:
FOCUS
DOE Contract Number:
AC02-07CH11359
OSTI ID:
1893383
Report Number(s):
FERMILAB-PUB-04-006-E; arXiv:hep-ex/0401019; oai:inspirehep.net:642785
Journal Information:
Phys.Lett.B, Journal Name: Phys.Lett.B Vol. 586
Country of Publication:
United States
Language:
English

References (8)

Cherenkov particle identification in FOCUS
  • Link, J. M.; Reyes, M.; Yager, P. M.
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 484, Issue 1-3 https://doi.org/10.1016/S0168-9002(01)01975-1
journal May 2002
A reanalysis of branching fractions of charmed mesonsD 0,D + andD s + journal September 1992
The target silicon detector for the FOCUS spectrometer
  • Link, J. M.; Reyes, M.; Yager, P. M.
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 516, Issue 2-3 https://doi.org/10.1016/j.nima.2003.08.163
journal January 2004
Review of Particle Properties journal July 2002
Study of the Cabibbo-suppressed decay modes D0→π−π+ and D0→K−K+ journal March 2003
Description and performance of the Fermilab E687 spectrometer
  • Frabetti, P. L.; Giordano, V.; Molinari, G.
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 320, Issue 3 https://doi.org/10.1016/0168-9002(92)90948-4
journal September 1992
Systematics of large axial vector meson production in heavy flavor weak decays journal August 2001
Study of hadronic five-body decays of charmed mesons journal May 2003

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Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS