中文
相关论文

相关论文: Flavour Changing Neutral Current Constraints from …

200 篇论文

We study quark mass matrices in the Randall-Sundrum (RS) model with bulk symmetry $SU(2)_L \times SU(2)_R \times U(1)_{B-L}$. The Yukawa couplings are assumed to be within an order of magnitude of each other, and perturbative. We find that…

高能物理 - 唯象学 · 物理学 2008-11-26 We-Fu Chang , John N. Ng , Jackson M. S. Wu

The version of the higher-dimensional Randall-Sundrum (RS) model with matter in the bulk, which addresses the gauge hierarchy problem, has additional attractive features. In particular, it provides an intrinsic geometrical mechanism that…

高能物理 - 唯象学 · 物理学 2009-11-11 G. Moreau , J. I. Silva-Marcos

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…

高能物理 - 唯象学 · 物理学 2009-11-07 C. S. Kim , J. D. Kim , Jeonghyeon Song

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…

高能物理 - 唯象学 · 物理学 2009-11-07 C. S. Kim , J. D. Kim , Jeong-hyeon 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…

高能物理 - 唯象学 · 物理学 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,…

高能物理 - 唯象学 · 物理学 2009-01-06 S. Casagrande , F. Goertz , U. Haisch , M. Neubert , T. Pfoh

We compute the finite renormalisation of the Cabibbo-Kobayashi-Maskawa (CKM) matrix induced by gluino-squark diagrams in the MSSM with non-minimal sources of flavour violation. Subsequently we derive bounds on the flavour-off-diagonal…

高能物理 - 唯象学 · 物理学 2010-10-25 Andreas Crivellin , Ulrich Nierste

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…

高能物理 - 唯象学 · 物理学 2010-11-02 Bjoern Duling

We propose a model of quark flavor based on an additional $SU(2)\times U(1)$ local symmetry in a warped extra dimensional bulk. In contrast to other works, we break the additional gauge symmetry in the bulk via two complex scalars which…

高能物理 - 唯象学 · 物理学 2020-03-18 George N. Wojcik , Thomas G. Rizzo

We present a variant of the warped extra dimension, Randall-Sundrum (RS), framework which is based on five dimensional (5D) minimal flavor violation (MFV), in which the only sources of flavor breaking are two 5D anarchic Yukawa matrices.…

高能物理 - 唯象学 · 物理学 2009-08-12 A. Liam Fitzpatrick , Gilad Perez , Lisa Randall

In a supersymmetric model with hierarchical squark masses we analyze a pattern of flavour symmetry breaking centered on the special role of the top Yukawa coupling and, by extension, of the full Yukawa couplings for the up-type quarks. For…

高能物理 - 唯象学 · 物理学 2011-02-15 Riccardo Barbieri , Enrico Bertuzzo , Marco Farina , Paolo Lodone , Dmitry Zhuridov

The Little Randall-Sundrum (Little RS) model receives significantly stronger constraints from the flavour observables in comparison to Randall-Sundrum (RS) model. In this paper, we analyse the effect of the electro-weak sector in Little RS…

高能物理 - 唯象学 · 物理学 2022-12-23 Akshay A , Mathew Thomas Arun

We recently proposed a spontaneous A4 flavor symmetry breaking scheme implemented in a warped extra dimensional setup to explain the observed pattern of quark and lepton masses and mixings. The quark mixing is induced by bulk A4 flavons…

高能物理 - 唯象学 · 物理学 2011-06-30 Avihay Kadosh , Elisabetta Pallante

We perform a comprehensive study of charged lepton flavour violation in Randall-Sundrum (RS) models in a fully 5D quantum-field-theoretical framework. We consider the RS model with minimal field content and a "custodially protected"…

高能物理 - 唯象学 · 物理学 2016-04-08 M. Beneke , P. Moch , J. Rohrwild

The Randall Sundrum (RS) models receive significant constraints from the neutral Kaon system. The CP violating observable $\epsilon_K$, in Randall Sundrum scenario, requires the lightest KK gluon to be heavier than $\sim$ 24 TeV. The…

高能物理 - 唯象学 · 物理学 2021-09-15 Giancarlo D'Ambrosio , Mathew Thomas Arun , Ashwani Kushwaha , Sudhir K. Vempati

I present results for the finite renormalization of the Cabibbo-Kobayashi-Maskawa (CKM) matrix induced by gluino--squark diagrams in the MSSM with non-minimal sources of flavour violation. Subsequently I derive bounds on the…

高能物理 - 唯象学 · 物理学 2009-05-20 Andreas Crivellin

We present an effective theory approach for a model with a left-right symmetric flavour group broken only by the Yukawa couplings. An underlying SU(2)_L x SU(2)_R x U(1)_{B-L} global symmetry is assumed without specifying the fundamental…

高能物理 - 唯象学 · 物理学 2010-11-25 Katrin Gemmler

We consider Randall-Sundrum set up (RS) to be a theory of flavour, as an alternative to Froggatt-Nielsen models instead of as a solution to the hierarchy problem. We consider a modified RS framework between the Planck scale and the GUT…

高能物理 - 唯象学 · 物理学 2013-08-09 Abhishek M Iyer , Sudhir K Vempati

The Randall-Sundrum (RS) framework has a built in protection against flavour violation, but still generically suffers from little CP problems. The most stringent bound on flavour violation is due to epsilon_K, which is inversely…

高能物理 - 唯象学 · 物理学 2010-05-28 Oram Gedalia , Gino Isidori , Gilad Perez

We update the constraints on the parameters of the quark flavour mixing matrix $V_{CKM}$ in the standard model using the latest experimental and theoretical results as input. We present the 95$\%$ C.L. allowed region of the unitarity…

高能物理 - 唯象学 · 物理学 2007-05-23 Ahmed Ali , David London
‹ 上一页 1 2 3 10 下一页 ›