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Related papers: Custodial bulk Randall-Sundrum model and B->K* l+ …

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The recent measurements of the direct CP asymmetries ($A_{CP}$) in the penguin-dominated $B\to K \pi$ decays show some discrepancy from the standard model (SM) prediction. While $A_{CP}$ of $B^+ \to \pi^0 K^+$ and that of $B^0 \to \pi^-…

High Energy Physics - Phenomenology · Physics 2011-02-01 Sanghyeon Chang , C. S. Kim , Jeonghyeon Song

The Randall-Sundrum framework provides an appealing solution to both the gauge hierarchy and the flavour problem. The model with enlarged custodial symmetry is consistent with electroweak precision observables for Kaluza-Klein (KK) scales…

High Energy Physics - Phenomenology · Physics 2014-11-20 Monika Blanke

In these proceedings we present the main results for particle-antiparticle mixing and rare decays in the Randall-Sundrum (RS) model with custodial symmetry. To investigate the strong bound on the Kaluza-Klein (KK) mass scale M_KK>O(20)TeV…

High Energy Physics - Phenomenology · Physics 2010-11-02 Bjoern Duling

We consider a Randall-Sundrum model in which the Standard Model fermions and gauge bosons correspond to bulk fields. We show how the observed charged fermion masses and CKM mixings can be explained, without introducing hierarchical Yukawa…

High Energy Physics - Phenomenology · Physics 2008-11-26 Stephan J. Huber , Qaisar Shafi

Randall-Sundrum scenario with all the standard model (SM) fermions and gauge bosons in the bulk is phenomenologically studied. Even though the simple assumption of universal bulk fermion mass m_\psi leads to the same Kaluza-Klein (KK) mass…

High Energy Physics - Phenomenology · Physics 2009-11-07 C. S. Kim , J. D. Kim , Jeong-hyeon Song

Flavor physics experiments allow to probe the accuracy of the Standard Model (SM) description at low energies, and are sensitive to new heavy gauge bosons that couple to quarks and leptons in a relevant way. The apparent anomaly in the…

High Energy Physics - Phenomenology · Physics 2018-12-26 Marcela Carena , Eugenio Megias , Mariano Quiros , Carlos Wagner

Deviations with respect to Standard Model predictions have recently shown up in angular distributions of the FCNC induced mode $B^0 \to K^{*0} \mu^+ \mu^-$. Within New Physics models, such tensions might be explained by new contributions to…

High Energy Physics - Phenomenology · Physics 2015-10-12 Fulvia De Fazio

We explore the flavour structure of custodial Randall-Sundrum (RS) models in the context of the recently observed deviations in the decay of the $B$ mesons. The anomalies in the $b\rightarrow s ll$ processes can be easily fit with partially…

High Energy Physics - Phenomenology · Physics 2018-10-22 Giancarlo D'Ambrosio , Abhishek M. Iyer

We study top quark Kaluza-Klein (KK) mode mixing in the Randall-Sundrum scenario with all the SM fermions and gauge bosons in the bulk. Even though the simple assumption of universal bulk fermion mass m_psi leads to the same KK mass…

High Energy Physics - Phenomenology · Physics 2009-11-07 C. S. Kim , J. D. Kim , Jeonghyeon Song

A comprehensive analysis of tree-level weak interaction processes at low energy is presented for the Randall-Sundrum (RS) model with SU(2)_L * U(1)_Y bulk gauge symmetry and brane-localized Higgs sector. The complete form of the effective…

High Energy Physics - Phenomenology · Physics 2010-10-21 M. Bauer , S. Casagrande , U. Haisch , M. Neubert

A complete discussion of tree-level flavor-changing effects in the Randall-Sundrum (RS) model with brane-localized Higgs sector and bulk gauge and matter fields is presented. The bulk equations of motion for the gauge and fermion fields,…

High Energy Physics - Phenomenology · Physics 2009-01-06 S. Casagrande , F. Goertz , U. Haisch , M. Neubert , T. Pfoh

We study the implications of flavour-changing neutral currents (FCNC's) in a model with the $SU(2)_l\times SU(2)_h\times U(1)_Y$ electroweak gauge symmetry for several anomalies appearing in $b\to s \ell\bar \ell$ induced $B$ decays in LHCb…

High Energy Physics - Phenomenology · Physics 2016-04-20 Cheng-Wei Chiang , Xiao-Gang He , German Valencia

Randall Sundrum models provide a possible explanation of (gauge-gravity) hierarchy, whereas discrete symmetry flavor groups yield a possible description of the texture of Standard Model fermion masses. We use both these ingredients to…

High Energy Physics - Phenomenology · Physics 2013-05-30 Carlos Alvarado , Alfredo Aranda , Olindo Corradini , Alma D. Rojas , Eli Santos-Rodriguez

The aim of these proceedings is to present the main predictions of the Randall-Sundrum model with custodial protection for particle-antiparticle mixing and rare decays of K and B_(s,d) mesons, putting particular attention on the testability…

High Energy Physics - Phenomenology · Physics 2015-05-14 Stefania Gori

We propose the local $(B-L)_{\mu\tau}$ model, which minimally retains the local $B-L$ extension for the sake of neutrino phenomenologies, and at the same time presents an invisible gauge boson $Z'$ with mass $\sim {\cal O}(10)$ MeV to…

High Energy Physics - Phenomenology · Physics 2019-11-15 Zhaofeng Kang , Yoshihiro Shigekami

We study a purely leptonic signature of the Randall-Sundrum scenario with Standard Model fields in the bulk at LHC: the contribution from the exchange of Kaluza-Klein (KK) excitations of gauge bosons to the clear Drell-Yan reaction. We show…

High Energy Physics - Phenomenology · Physics 2008-11-26 F. Ledroit , G. Moreau , J. Morel

Recently bulk Randall-Sundrum theories with the gauge group $SU(2)_L \times SU(2)_R \times U(1)_{B-L}$ have drawn a lot of interest as an alternative to electroweak symmetry breaking mechanism. These models are in better agreement with…

High Energy Physics - Phenomenology · Physics 2009-11-11 Sanghyeon Chang , Seong Chan Park , Jeonghyeon Song

An interesting extension of the Standard Model is based on the electroweak gauge group SU(3)_L x U(1). It requires three generations to cancel anomalies, treats the third generation differently than the first two, and has a rich…

High Energy Physics - Phenomenology · Physics 2008-11-26 J. -Alexis Rodriguez , Marc Sher

The warped bulk standard model has been studied in the Randall-Sundrum background on $S^1/\Z\times\Z'$ interval with the bulk gauge symmetry $SU(3)\times SU(2)_L\times SU(2)_R\times U(1)_{B-L}$. With the assumption of no large cancellation…

High Energy Physics - Phenomenology · Physics 2009-11-11 Sanghyeon Chang , C. S. Kim , Masahiro Yamaguchi

We calculate contributions to the photon and gluon magnetic dipole operators that mediate b -> s gamma and b -> d gamma transitions in the Randall-Sundrum model of a warped extra dimension with anarchic bulk fermions and a brane localized…

High Energy Physics - Phenomenology · Physics 2012-08-16 Monika Blanke , Bibhushan Shakya , Philip Tanedo , Yuhsin Tsai
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