Lifetime difference of B{sub s} mesons and its implications

Conference · Thu Aug 01 04:00:00 EDT 1996

OSTI ID:491583

Beneke, M

The authors discuss the calculation of the width difference {Delta}{Gamma}{sub B}, between the B{sub s} mass eigenstates to next-to-leading order in the heavy quark expansion. 1/m{sub b}-corrections are estimated to reduce the leading order result by typically 30%. The error of the present estimate ({Delta}{Gamma}/{Gamma}){sub B{sub s}} = 0.16{sub {minus}0.09}{sup +0.11} could be substantially improved by pinning down the value of <{anti B}{sub s}{vert_bar}({anti b}{sub i}s{sub i}){sub S{minus}P}({anti b}{sub j}s{sub j}){sub S{minus}P}{vert_bar}B{sub s}> and an accuracy of 10% in ({Delta}{Gamma}/{Gamma}){sub B{sub s}} should eventually be reached. They briefly mention strategies to measure ({Delta}{Gamma}/{Gamma}){sub B{sub s}}, and its implications for constraints on {Delta}M{sub B{sub s}}, CKM parameters and the observation of CP violation in untagged B{sub s} samples.

• Research Organization: Long Island Jewish-Hillside Medical Center, New Hyde Park, NY (United States)
• Sponsoring Organization: USDOE Office of Energy Research, Washington, DC (United States)
• DOE Contract Number: AC03-76SF00515
• OSTI ID: 491583
• Report Number(s): SLAC-PUB--7258; CONF-960765--65; ON: DE97006496; IN: hep-ph/9609214
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
B S MESONS
CORRECTIONS
CP INVARIANCE
KOBAYASHI-MASKAWA MATRIX
LIFETIME
PARTICLE WIDTHS
PROBABILISTIC ESTIMATION