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Study of the Cabibbo Suppressed Decay Modes $$D^0 \to \pi^- \pi^+$$ and $$D^0 \to K^- K^+$$

Journal Article · · Phys.Lett.B
Using data from the FOCUS (E831) experiment at Fermilab, we present a new measurement for the branching ratios of the Cabibbo-suppressed decay modes D 0 → π - π + and D 0 → K - K + . We measured: Γ ( D 0 → K - K + )/ Γ ( D 0 → π - π + )=2.81±0.10(stat)±0.06(syst), Γ ( D 0 → K - K + )/ Γ ( D 0 → K - π + )=0.0993±0.0014(stat)±0.0014(syst), and Γ ( D 0 → π - π + )/ Γ ( D 0 → K - π + )=0.0353±0.0012(stat)±0.0006(syst). These values have been combined with other experimental data to extract the ratios of isospin amplitudes and the phase shifts for the D → KK and D → ππ decay channels.
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:
1892224
Report Number(s):
FERMILAB-PUB-02-347-E; arXiv:hep-ex/0212058; oai:inspirehep.net:605422
Journal Information:
Phys.Lett.B, Journal Name: Phys.Lett.B Vol. 555
Country of Publication:
United States
Language:
English

References (20)

Exclusive non-leptonic decays ofD-,D s - andB-mesons journal March 1987
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
Final-state-interaction and SU(3)-breaking effects in journal April 1992
Isospin analysis of CP asymmetries in B decays journal December 1990
Search for CP Violation in the decays D + → K S π + and D + → K S K + journal January 2002
OnD→ππ and $$K\bar K$$ decays journal September 1992
Coupled-channel treatment of Cabibbo-angle-suppressed (D,Ds+)→PP decays journal December 1987
The Effect of Final State Interactions on Reaction Cross Sections journal December 1952
Review of Particle Properties journal July 2002
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
A measurement of the Cabibbo-suppressed decays D0 → π−π+ and D0 → K−K+ journal January 1994
Analyses ofD+→KS0K+andD+→KS0π+ journal April 1997
Lifetime differences, direct CP violation, and partial widths in D 0 meson decays to K + K − and π + π − journal April 2002
Nonleptonic Decays and Lifetimes of Charm and Beauty Particles journal December 1996
expansion for exclusive and inclusive charm decays journal April 1986
Branching fractions for D0→K+K− and D0→π+π−, and a search for CP violation in D0 decays journal March 1998
Analysis of charm→PPbased on SU(3) symmetry and final-state interactions journal June 1987
Measurement of theD→ππ branching fractions journal September 1993
Penguin trapping with isospin analysis and CP asymmetries in B decays journal September 1991
Test of factorization inD→ππ andD→KK¯decays journal August 1994

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Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS