Family nonuniversal Z ' and b -> s gamma decay

Download
2003-03-14
Sever, Ramazan
Aydemir, A
We have calculated the branching ratio and CP asymmetry of B --> X(s)gamma decay within the family nonuniversal Z' models. We have established certain bounds on the model parameters using the present experimental bounds. We also comment on the role of family nonuniversality in the hadronic decay modes of the B meson.
MODERN PHYSICS LETTERS A

Suggestions

The B -> X(d)l(+)l(-) decay in general two Higgs doublet model
Alıyev, Tahmasıb; Savcı, Mustafa (Elsevier BV, 1999-04-22)
The branching ratio, forward-backward asymmetry and CP violating asymmetry for B --> X(d)l(+)l(-) decay, in framework of the general two Higgs doublet model, with extra phase angle in the charged-Hwiggs-fermion coupling, are calculated. It is shown that studying the CP violating asymmetry is an efficient tool for establishing new physics.
Standard model CP violation in B -> X(d)l(+)l(-) decays
Eygi, ZD; Turan, Gürsevil (World Scientific Pub Co Pte Lt, 2003-12-14)
We investigate the CP violating asymmetry, the forward backward asymmetry and the CP violating asymmetry in the forward-backward asymmetry for the inclusive B --> X(d)l(+)l(-) decays for the l = e, mu, tau channels in the standard model. It is observed that these asymmetries are quite sizeable and B --> X(d)l(+)l(-) decays seem promising for investigating CP violation.
The neutralino mass: Correlation with the charginos
Boz, Muge; Pak, Namik K. (World Scientific Pub Co Pte Lt, 2006-06-28)
As the fundamental SU(2) supersymmetric parameters can be determined in the chargino sector, and the remaining fundamental parameters of the minimal supersymmetric extensions of the standard model can be analyzed in the neutralino sector, the two sectors can be correlated via these parameters. We have shown that for the CP-conserving case, the masses of all the neutralinos can be determined in terms of the chargino masses and tan beta. In this case the neutralinc, masses are quite insensitive to the variati...
Q-ball formation in the MSSM with explicit CP violation
Boz, M; Demir, DA; Pak, Namık Kemal (World Scientific Pub Co Pte Lt, 2000-03-07)
Q-balls generically exist in the supersymmetric extensions of the standard model. Taking into account the additional sources of CP violation, which are naturally accommodated by the supersymmetric models, it is shown that the Q-ball matter depends additionally on individual CP phases, whereas mass per unit charge in the Q-ball depends only on the relative phases. There are regions of the parameter space where there is no stable Q-ball solution in the CP-conserving limit whereas finite CP phases induce a sta...
Dirac gamma matrices as representations of the algebra of little groups
Baskal, S (World Scientific Pub Co Pte Lt, 2000-04-30)
The algebra of O(3, 3) is contracted to that of E(2)-like groups in the infinite-momentum limit. It is shown through this process that there are 18 different possibilities for the representations of E(2)-like algebra if they are to be expressed in terms of Dirac gamma-matrices. It is also pointed out that the generators of this algebra are independent of the particular representation of the gamma-matrices. Possible implications of this analysis is discussed.
Citation Formats
R. Sever and A. Aydemir, “Family nonuniversal Z ′ and b -> s gamma decay,” MODERN PHYSICS LETTERS A, pp. 545–552, 2003, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/62420.