[ital CP] violation in [ital B][sup [plus minus]][r arrow][gamma][pi][sup [plus minus]][pi][sup +][pi][sup [minus]]

Journal Article · Mon Jan 09 04:00:00 EST 1995 · Physical Review Letters; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.74.220· OSTI ID:6603901

Atwood, D; Soni, A ^[1]

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1. Department of Physics, Stanford Linear Accelerator Center, Stanford University, Stanford, California 94309 (United States) Department of Physics, Brookhaven National Laboratory, Upton, New York 11973 (United States)

We consider [ital CP]-violating effects in decays of the type [ital B][sup [plus minus]][r arrow][gamma][ital a][sub 1,2][sup [plus minus]], where [ital a][sub 1,2] are the [ital J][sup [ital P]]=1[sup +] and 2[sup +] resonances, each decaying to the common final state via [ital a][sub 1,2][sup [plus minus]][r arrow][pi][sup [plus minus]][rho][sup 0]. The resonances enhance the [ital CP] asymmetries and also knowledge of their masses and widths facilitates calculations of the effects. Several types of [ital CP] asymmetries are sizable ([similar to]10%--30%); these large asymmetries together with a model calculation of the ratio between the penguin and the annihilation amplitudes, can therefore provide a possible method for measuring the angle [alpha] in the unitarity triangle.

• OSTI ID: 6603901
• Journal Information: Physical Review Letters; (United States), Journal Name: Physical Review Letters; (United States) Vol. 74:2; ISSN 0031-9007; ISSN PRLTAO
• Country of Publication: United States
• Language: English

Related Subjects

662120 -- General Theory of Particles & Fields-- Symmetry
Conservation Laws
Currents & Their Properties-- (1992-)
662350* -- Decays of Mesons-- (1992-)
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ASYMMETRY
B MESONS
B MINUS MESONS
B PLUS MESONS
BEAUTY PARTICLES
BOSONS
CP INVARIANCE
DECAY
DIMENSIONS
ELEMENTARY PARTICLES
HADRONS
INVARIANCE PRINCIPLES
MASS
MESONS
PARTICLE DECAY
PIONS
PSEUDOSCALAR MESONS
RADIATIVE DECAY
RESONANCE
VIOLATIONS
WIDTH