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Direct violation in decays as a signature of new physics
AL Kagan, M Neubert - Physical Review D, 1998 - APS
We argue that the observation of a sizable direct CP asymmetry A CP b→ s γ in the inclusive
decays B→ X s γ would be a clean signal of new physics. In the standard model, A CP b→ s …
decays B→ X s γ would be a clean signal of new physics. In the standard model, A CP b→ s …
Systematic analysis of the lepton polarization asymmetries in the rare B decay
S Fukae, CS Kim, T Yoshikawa - Physical Review D, 2000 - APS
The most general model-independent analysis of the lepton polarization asymmetries in the
rare B decay, B→ X s τ+ τ−, is presented. We present the longitudinal, normal, and …
rare B decay, B→ X s τ+ τ−, is presented. We present the longitudinal, normal, and …
Lepton polarization and forward-backward asymmetries in
We study the spin polarizations of both τ leptons in the decay b→ s τ+ τ−. In addition to the
polarization asymmetries involving a single τ, we construct asymmetries for the case where …
polarization asymmetries involving a single τ, we construct asymmetries for the case where …
Constraints on the mass and mixing of the fourth generation quark from direct violation and rare K decays
CS Huang, WJ Huo, YL Wu - Physical Review D, 2001 - APS
We investigate the ε′/ε for K→ π π in a sequential fourth generation model. By giving the
basic formulas for ε′/ε in this model, we analyze the numerical results which are dependent …
basic formulas for ε′/ε in this model, we analyze the numerical results which are dependent …
[HTML][HTML] Direct CP asymmetry of B→ Xd, sγ in a model with vector quarks
AG Akeroyd, S Recksiegel - Physics Letters B, 2002 - Elsevier
We investigate the effect of vector quarks on the inclusive decays B→ Xd, sγ. We show that
the branching ratio of B→ Xdγ can differ sizably from the SM and MSSM predictions, being …
the branching ratio of B→ Xdγ can differ sizably from the SM and MSSM predictions, being …
Effects of the fourth generation on in–mixing
WJ Huo - The European Physical Journal C-Particles and Fields, 2002 - Springer
We investigate the mass differences ΔM_B_d,s in B^0_d,s–̄B^0_d,s mixing with a new up-
like quark t^′ in the sequential fourth generation model. We give the basic formulae for …
like quark t^′ in the sequential fourth generation model. We give the basic formulae for …
Decay with the Fourth Generation
WJ Huo, CD Lu, ZJ **ao - arxiv preprint hep-ph/0302177, 2003 - arxiv.org
We calculate the branching ratios of $ B_ {s, d}\to\gamma\gamma $ decay in the sequential
fourth generation model. We find that the theoretical values of the branching ratios, ${\rm …
fourth generation model. We find that the theoretical values of the branching ratios, ${\rm …
THE EFFECTS OF NONLOCAL INTERACTIONS IN RARE B DECAYS, B→Xsl+l-
S Fukae, CS Kim, T Yoshikawa - International Journal of Modern …, 2001 - World Scientific
The effects of nonlocal interactions in rare B decays, B→ Xsl+ l-, are investigated. We show
the correlation between the branching ratio and the forward–backward asymmetry via two …
the correlation between the branching ratio and the forward–backward asymmetry via two …
CP asymmetry of in the low invariant mass region
S Fukae - Physical Review D, 2001 - APS
I analyze the CP asymmetry of B→ X s l+ l− based on a model-independent analysis, which
includes 12 independent four-Fermi operators. The CP asymmetry is suppressed in the …
includes 12 independent four-Fermi operators. The CP asymmetry is suppressed in the …
Determination of the CKM matrix by semileptonic rare B-decays
LT Handoko - arxiv preprint hep-ph/9712356, 1997 - arxiv.org
The possibility to test the unitarity triangle of CKM matrix is examined by using the
semileptonic rare $ B $ decays, $ B\rightarrow X_q\,\l^+\,\l^-$ with $ q= d, s $ and $\l $'s are …
semileptonic rare $ B $ decays, $ B\rightarrow X_q\,\l^+\,\l^-$ with $ q= d, s $ and $\l $'s are …