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It has been recently argued that realistic models with warped extra dimensions can have Kaluza-Klein particles accessible at the Large Hadron Collider if a custodial symmetry, SU(2)_V \times P_{LR}, is used to protect the T parameter and…

高能物理 - 唯象学 · 物理学 2010-04-06 Marcela Carena , Eduardo Ponton , Jose Santiago , C. E. M. Wagner

We give a new configuration of split fermion positions in one extra dimension with two different Yukawa coupling strengths for up-type, $h_u$, and down-type, $h_d$, quarks at $\frac{h_u}{h_d}=36.0$. The new configurations can give enough CP…

高能物理 - 唯象学 · 物理学 2011-02-01 We-Fu Chang , John N. Ng

After a brief theoretical introduction of the warped extra-dimensional model with custodial protection the results of arXiv:0809.1073 [hep-ph] are presented. In this work we analyze the impact of Kaluza-Klein (KK) gauge boson modes on Delta…

高能物理 - 唯象学 · 物理学 2009-07-22 Bjoern Duling

We discuss the Kaluza-Klein threshold correction to low energy gauge couplings in theories with warped extra-dimension, which might be crucial for the gauge coupling unification when the warping is sizable. Explicit expressions of one-loop…

高能物理 - 理论 · 物理学 2014-11-20 Kiwoon Choi , Ian-Woo Kim , Chang Sub Shin

Extra dimensions have interesting consequences for flavor physics. We consider a setup where the standard model fermions and gauge fields reside in the bulk of a warped extra dimension. Fermion masses and mixings are explained by flavor…

高能物理 - 唯象学 · 物理学 2008-11-26 Stephan J. Huber

If the Higgs does not propagate into an otherwise universal extra dimension, then tree-level Kaluza-Klein number is not conserved in the Yukawa interactions. This leads to mixing between zero-mode fermions and their associated Kaluza-Klein…

高能物理 - 唯象学 · 物理学 2008-11-26 C. D. McMullen , S. Nandi

We present a complete study of Delta S = 2 and Delta B = 2 processes in a warped extra dimensional model with a custodial protection of Z b_L bar b_L, including epsilon_K, Delta M_K, Delta M_s, Delta M_d, A^q_SL, Delta Gamma_q, A_CP(B_d ->…

高能物理 - 唯象学 · 物理学 2009-03-27 Monika Blanke , Andrzej J. Buras , Bjoern Duling , Stefania Gori , Andreas Weiler

Addition of boundary localised kinetic and Yukawa terms to the action of a 5-dimensional Standard Model would non-trivially modify the Kaluza-Klein spectra and some of the interactions among the Kaluza-Klein excitations compared to the…

高能物理 - 唯象学 · 物理学 2016-04-01 Anindya Datta , Avirup Shaw

We present a class of warped extra dimensional models whose flavor violating interactions are much suppressed compared to the usual anarchic case due to flavor alignment. Such suppression can be achieved in models where part of the global…

高能物理 - 唯象学 · 物理学 2013-05-29 Csaba Csaki , Gilad Perez , Ze'ev Surujon , Andreas Weiler

We argue that extensions of the Standard Model (SM) with a warped extra dimension, which successfully address the hierarchy and flavor problems of elementary particle physics, can provide an elegant explanation of the 750 GeV diphoton…

高能物理 - 唯象学 · 物理学 2016-08-24 Martin Bauer , Clara Hoerner , Matthias Neubert

We study, at the one loop level, the dominant new physics contributions from extra dimensions to Z -> b,b(bar), as well as B-B(bar) and K-K(bar) mixing. We use a model with one extra dimension containing fermions which live in four…

高能物理 - 唯象学 · 物理学 2016-09-06 Joannis Papavassiliou , Arcadi Santamaria

A warped extra-dimensional model, where the Standard Model Yukawa hierarchy is set by UV physics, is shown to have a sweet spot of parameters with improved experimental visibility and possibly naturalness. Upon marginalizing over all the…

高能物理 - 唯象学 · 物理学 2011-06-13 Cédric Delaunay , Oram Gedalia , Seung J. Lee , Gilad Perez , Eduardo Pontón

We study predictions for B-physics in a class of models, recently introduced, with a non-supersymmetric warped extra dimension. In these models few ($\sim 3$) TeV Kaluza-Klein masses are consistent with electroweak data due to bulk…

高能物理 - 唯象学 · 物理学 2010-04-06 Kaustubh Agashe , Gilad Perez , Amarjit Soni

We critically examine a version of the top mode standard model recently cast in extra dimensions by Arkani-Hamed, Cheng, Dobrescu, and Hall, based on the (improved) ladder Schwinger-Dyson (SD) equation for the D-(=6,8-)-dimensional gauge…

高能物理 - 唯象学 · 物理学 2009-10-31 Michio Hashimoto , Masaharu Tanabashi , Koichi Yamawaki

We study the effects of extra spacetime dimensions at intermediate mass scales, as expected in string theories with large-radius compactifications, and focus on the gauge and Yukawa couplings within the Minimal Supersymmetric Standard…

高能物理 - 唯象学 · 物理学 2009-10-31 Keith R. Dienes , Emilian Dudas , Tony Gherghetta

For a RS model, with SM fields in the bulk and the Higgs boson on the TeV-brane, we suggest two specific structures for the Yukawa couplings, one based on a permutation symmetry and the other on the Universal Strength of Yukawa couplings…

高能物理 - 唯象学 · 物理学 2010-10-27 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

We propose a model of spontaneous CP violation to address the strong CP problem in warped extra dimensions that relies on sequestering flavor and CP violation. We assume that brane-localized Higgs Yukawa interactions respect a U(3) flavor…

高能物理 - 理论 · 物理学 2009-01-06 Clifford Cheung , A. Liam Fitzpatrick , Lisa Randall

A minimal solution to the flavor problem of warped extra-dimension models, i.e. the excessive mixed-chirality contribution to CP violation in K-Kbar mixing arising from Kaluza-Klein (KK) gluon exchange, is proposed. Extending the…

高能物理 - 唯象学 · 物理学 2015-05-30 Martin Bauer , Raoul Malm , Matthias Neubert

We investigate a class of extra dimensional models where all of the Standard Model fermions are localized to a single fixed point in an $S_1/Z_2$ orbifold, and each species is localized with an exponential wavefunction with a different…

高能物理 - 唯象学 · 物理学 2009-11-10 Ben Lillie
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