B{yields}K*l{sup +}l{sup -} forward-backward asymmetry and new physics
Journal Article
·
· Physical Review. D, Particles Fields
- Department of Physics, National Taiwan University, Taipei, Taiwan 10617 (China)
- Center for Theoretical Sciences, National Taiwan University, Taipei, Taiwan 10617 (China)
The forward-backward asymmetry A{sub FB} in B{yields}K*l{sup +}l{sup -} decay is a sensitive probe of new physics. Previous studies have focused on the sensitivity in the position of the zero. However, the effective Wilson coefficients (short distance effective couplings) are in principle complex, as illustrated by B{yields}{rho}l{sup +}l{sup -} decay within the standard model. Allowing for this, but keeping the B{yields}K*{gamma} and K*l{sup +}l{sup -} rate constraints, we find the landscape for A{sub FB}(B{yields}K*l{sup +}l{sup -}) to be far richer than from entertaining just sign flips. The complex nature of effective Wilson coefficients can be explored by future high statistics experiments.
- OSTI ID:
- 21035699
- Journal Information:
- Physical Review. D, Particles Fields, Journal Name: Physical Review. D, Particles Fields Journal Issue: 1 Vol. 77; ISSN PRVDAQ; ISSN 0556-2821
- Country of Publication:
- United States
- Language:
- English
Similar Records
Measurement of Forward-Backward Asymmetry and Wilson Coefficients in B{yields}K{sup *}l{sup +}l{sup -}
Forward-backward and CP-violating asymmetries in rare B{sub d,s{yields}}(V,{gamma})l{sup +}l{sup -} decays
Branching ratios, forward-backward asymmetries, and angular distributions of B{yields}K{sub 2}*l{sup +}l{sup -} in the standard model and two new physics scenarios
Journal Article
·
Fri Jun 30 00:00:00 EDT 2006
· Physical Review Letters
·
OSTI ID:20775287
Forward-backward and CP-violating asymmetries in rare B{sub d,s{yields}}(V,{gamma})l{sup +}l{sup -} decays
Journal Article
·
Sun Feb 28 23:00:00 EST 2010
· Physical Review. D, Particles Fields
·
OSTI ID:21409856
Branching ratios, forward-backward asymmetries, and angular distributions of B{yields}K{sub 2}*l{sup +}l{sup -} in the standard model and two new physics scenarios
Journal Article
·
Mon Jan 31 23:00:00 EST 2011
· Physical Review. D, Particles Fields
·
OSTI ID:21504894