$B_s^0 - \bar B_s^0$ mixing and $b \to s $ transitions in isosinglet down quark model
@article{Mohanta2008B\_s0, title={\$B\_s^0 - \bar B\_s^0\$ mixing and \$b \to s \$ transitions in isosinglet down quark model}, author={Rukmani Mohanta and Anjan Kumar Giri}, journal={Physical Review D}, year={2008} }
The recent observation of the mass difference in $B_s$ system seems to be not in complete agreement with the corresponding standard model value. We consider the model with an extra vector like down quark to explain this discrepancy and obtain the constraints on the new physics parameters. Thereafter, we show that with these new constraints this model can successfully explain other observed deviations associated with $b \to s$ transitions, namely, $B_s \to \psi \phi$, $B\to K \pi$ and $B\to \phi…
8 Citations
The Prediction of Mass of Z'-Boson from $b_q^0-b_q^0 bar$ Mixing
- Physics
- 2011
$B_q^0-B_^0 bar$ mixing offers a profound probe into the effects of new physics beyond the Standard Model. In this paper, $B_s^0-B_s^0 bar$ and $B_d^0-B_d^0 bar$ mass differences are considered…
Inspection of new physics in Bs→K+K− decay mode
- PhysicsPhysical Review D
- 2020
We scrutinize the penguin dominated $ B_s \to K^+ K^-$ decay mode involving $b \to s$ quark level transition in family non-universal $Z^ \prime$ and vector-like down quark model. There is discrepancy…
New physics in B0s → J/ψϕ: a general analysis
- Physics
- 2010
Recently, the CDF and D0 collaborations measured indirect CP violation in B0s → J/ψϕ and found a hint of a signal. If taken at face value, this can be interpreted as a nonzero phase of $$ B_s^0 -…
Signals of New Physics in B-Mesons Mixing Mass and Decay Width Differences
- PhysicsBrazilian Journal of Physics
- 2019
The measurement of Bq0−Bq0¯$$ {B}_q^0-\overline{B_q^0} $$ (q = d, s) mixing mass difference and decay width differences is an important ingredient for searching physics beyond the standard model. In…
The effect of z^prime boson on same-sign dimuon charge asymmetry in $ b_q^0 - bar b_q^0$ system
- Physics
- 2013
The recent observation of the same-sign dimuon charge asymmetry in the B system by the D0 collaboration has 3.9 sigma deviation from the standard model prediction. However, the recent LHCb data on…
Neutral gauge boson contributions to the dimuon charge asymmetry in B decays
- Physics
- 2011
Recently, the DØ Collaboration measured the CP-violating like-sign dimuon charge asymmetry in neutral B decays, finding a 3.2σ difference from the standard-model (SM) prediction. Anon-SM charge…
Model Independent Predictions for Rare Top Decays with Weak Coupling
- Physics
- 2010
Measurements at B factories have provided important constraints on new physics in several rare processes involving the B meson. New physics, if present in the b quark sector may also affect the top…
Implication of Z-mediated FCNC on semileptonic decays Bs→φl+l–and B+→K+l+l–
- PhysicsInternational Journal of Theoretical Physics
- 2020
Rare B meson decays mediated by flavour changing neutral current (FCNC) transition play interesting role to probe the flavour sector of the standard model (SM). Generally at the tree level, FCNC…
References
SHOWING 1-10 OF 19 REFERENCES
JHEP 0706
- 072
- 2007
Prog
- Theor. Phys. 101, 1313 (1999); M. Bando, T. Kugo and K. Yoshioka, Prog. Theor. Phys. 104, 211
- 2000
Phys
- Rev. D 55, 2845 (1997); A. K. Giri and R. Mohanta, Phys. Rev. D 68, 014020 (2003); ibid 69, 014008 (2004); Mod. Phys. Lett. A 19, 1903 (2004); JHEP 11, 084 (2004); Euro. Phys. J. C 45, 151 (2006); R. Mohanta, Phys. Rev. D 71, 114013
- 2005
Phys
- Rev. D 69, 115011 (2004); S. Khalil, Phys. Rev. D 74, 035005 (2006); B. Dutta and Y. Nimura, Phys. Rev. Lett. 97, 241802 (2006); R. Arnowitt, B. Dutta, B. Hu and S. Oh, Phys. Lett. B 641, 305 (2006); X. G. He and G. Valencia, Phys. Rev. D 74, 013011 (2006); S. Chang, C. S. Kim and J. Song, J. High E
- 2007
Errutum ibid
- 2001
Phys
- Rev. D 64, 015007 (2001); G. Barenboim and F. J. Botella, Phys. Lett. B 433, 385
- 1998
hep-ph/0307251; N
- G. Deshpande and D. K. Ghosh, Phys. Lett. B 593, 135
- 2004
) ; B . Dutta and Y . Nimura
- Phys . Rev . Lett .
- 2006