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Title: Custodial bulk Randall-Sundrum model and B{yields}K*l{sup +}l{sup '-}

Abstract

The custodial Randall-Sundrum model based on SU(2){sub L}xSU(2){sub R}xU(1){sub B-L} generates new flavor-changing-neutral-current (FCNC) phenomena at tree level, mediated by Kaluza-Klein (KK) neutral gauge bosons. Based on two natural assumptions of universal 5D Yukawa couplings and no cancellation in explaining the observed standard model (SM) fermion mixing matrices, we determine the bulk Dirac mass parameters. Phenomenological constraints from lepton-flavor violations are also used to specify the model. From the comprehensive study of B{yields}K*l{sup +}l{sup '-}, we found that only the B{yields}K*e{sup +}e{sup -} decay has sizable new physics effects. The zero value position of the forward-backward asymmetry in this model is also evaluated, with about 5% deviation from the SM result. Other effective observables are also suggested such as the ratio of two differential (or partially integrated) decay rates of B{yields}K*e{sup +}e{sup -} and B{yields}K*{mu}{sup +}{mu}{sup -}. For the first KK gauge boson mass of M{sub A}{sup (1)}=2-4 TeV, we can have about 10%-20% deviation from the SM results.

Authors:
; ;  [1]
  1. Department of Physics and IPAP, Yonsei University, Seoul 120-749 (Korea, Republic of)
Publication Date:
OSTI Identifier:
21249957
Resource Type:
Journal Article
Journal Name:
Physical Review. D, Particles Fields
Additional Journal Information:
Journal Volume: 77; Journal Issue: 7; Other Information: DOI: 10.1103/PhysRevD.77.075001; (c) 2008 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0556-2821
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; ASYMMETRY; B MESONS; BOSONS; COUPLING; ELECTRON-POSITRON COLLISIONS; FLAVOR MODEL; KALUZA-KLEIN THEORY; KAONS; LEPTONS; MASS; MIXING; MUONS MINUS; MUONS PLUS; NEUTRAL CURRENTS; PARTICLE DECAY; STANDARD MODEL; SU-2 GROUPS; TEV RANGE 01-10; U-1 GROUPS

Citation Formats

Chang, Sanghyeon, Kim, C S, Song, Jeonghyeon, and Department of Physics, Konkuk University, Seoul 143-701. Custodial bulk Randall-Sundrum model and B{yields}K*l{sup +}l{sup '-}. United States: N. p., 2008. Web. doi:10.1103/PHYSREVD.77.075001.
Chang, Sanghyeon, Kim, C S, Song, Jeonghyeon, & Department of Physics, Konkuk University, Seoul 143-701. Custodial bulk Randall-Sundrum model and B{yields}K*l{sup +}l{sup '-}. United States. https://doi.org/10.1103/PHYSREVD.77.075001
Chang, Sanghyeon, Kim, C S, Song, Jeonghyeon, and Department of Physics, Konkuk University, Seoul 143-701. 2008. "Custodial bulk Randall-Sundrum model and B{yields}K*l{sup +}l{sup '-}". United States. https://doi.org/10.1103/PHYSREVD.77.075001.
@article{osti_21249957,
title = {Custodial bulk Randall-Sundrum model and B{yields}K*l{sup +}l{sup '-}},
author = {Chang, Sanghyeon and Kim, C S and Song, Jeonghyeon and Department of Physics, Konkuk University, Seoul 143-701},
abstractNote = {The custodial Randall-Sundrum model based on SU(2){sub L}xSU(2){sub R}xU(1){sub B-L} generates new flavor-changing-neutral-current (FCNC) phenomena at tree level, mediated by Kaluza-Klein (KK) neutral gauge bosons. Based on two natural assumptions of universal 5D Yukawa couplings and no cancellation in explaining the observed standard model (SM) fermion mixing matrices, we determine the bulk Dirac mass parameters. Phenomenological constraints from lepton-flavor violations are also used to specify the model. From the comprehensive study of B{yields}K*l{sup +}l{sup '-}, we found that only the B{yields}K*e{sup +}e{sup -} decay has sizable new physics effects. The zero value position of the forward-backward asymmetry in this model is also evaluated, with about 5% deviation from the SM result. Other effective observables are also suggested such as the ratio of two differential (or partially integrated) decay rates of B{yields}K*e{sup +}e{sup -} and B{yields}K*{mu}{sup +}{mu}{sup -}. For the first KK gauge boson mass of M{sub A}{sup (1)}=2-4 TeV, we can have about 10%-20% deviation from the SM results.},
doi = {10.1103/PHYSREVD.77.075001},
url = {https://www.osti.gov/biblio/21249957}, journal = {Physical Review. D, Particles Fields},
issn = {0556-2821},
number = 7,
volume = 77,
place = {United States},
year = {Tue Apr 01 00:00:00 EDT 2008},
month = {Tue Apr 01 00:00:00 EDT 2008}
}