Angular distribution and [ital CP] effects in rare decays of vector mesons

Journal Article · Thu Apr 01 04:00:00 EST 1993 · Physical Review, D (Particles Fields); (United States)

DOI:https://doi.org/10.1103/PhysRevD.47.2796· OSTI ID:6709341

Cakir, M B ^[1]

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1. Department of Physics and Astronomy, Rutgers University, Piscataway, New Jersey 08854 (United States)

We calculate the differential decay rate for the semileptonic decay [ital V][r arrow][ital Rl][sup +][ital l[minus]] when [ital R] is a scalar, a pseudoscalar, and a vector as a function of the invariant mass of the [ital l][sup +][ital l[minus]] pair and the scattering angle in the [ital l][sup +][ital l[minus]] center-of-mass frame. We obtain the helicity dependence of the decays and calculate the asymmetry factor [alpha]([ital s]) and the ratio of the contributions from the [ital CP]-odd and [ital CP]-even channels. We repeat the calculations for the nonleptonic decay [ital V][r arrow][ital RR][prime]. In the calculations we use the heavy-quark and factorization approximations.

• OSTI ID: 6709341
• Journal Information: Physical Review, D (Particles Fields); (United States), Journal Name: Physical Review, D (Particles Fields); (United States) Vol. 47:7; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

662350* -- Decays of Mesons-- (1992-)
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
AMPLITUDES
BOSONS
CALCULATION METHODS
COMPOSITE MODELS
CP INVARIANCE
DECAY
ELEMENTARY PARTICLES
HADRONIC PARTICLE DECAY
HADRONS
INVARIANCE PRINCIPLES
MANY-BODY PROBLEM
MATHEMATICAL MODELS
MESONS
PARTICLE DECAY
PARTICLE KINEMATICS
PARTICLE MODELS
QUARK MODEL
SCATTERING AMPLITUDES
SEMILEPTONIC DECAY
THREE-BODY PROBLEM
VECTOR MESONS
WEAK PARTICLE DECAY