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Related papers: Soft superweak CP violation in a 331 model

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Based on a neutrino mass matrix model in which a 2-3 symmetry is only broken by a phase parameter, it is investigated how the lepton mixing matrix can deviate from the so-called tribimaximal mixing under a condition that CP is maximally…

High Energy Physics - Phenomenology · Physics 2014-11-20 Yoshio Koide , Hiroyuki Nishiura

CP violation in the SM is naturally implemented as a small imaginary perturbation to real Yukawa couplings. For example, a large CP asymmetry in B_d decays can arise if the imaginary parts of quark mass matrices are of order 10^(-3)m_t,b or…

High Energy Physics - Phenomenology · Physics 2010-04-05 Thomas Dent , Joaquim Silva-Marcos

Following the anomalous like-sign dimuon charge asymmetry measured by the D0 collaboration at the Tevatron collider we discuss the implications of large CP violation in $B_{d,s}$ mixing for Supersymmetric (SUSY) Standard Models, focussing…

High Energy Physics - Phenomenology · Physics 2014-11-21 S. F. King

We calculate the CP-violating effects in the top quark semi-leptonic three body decays induced by the supersymmetric CP-odd phase of the top squark trilinear soft breaking term $\arg(A_t)$. The light top squark mass is assumed to be close…

High Energy Physics - Phenomenology · Physics 2009-01-07 Xiao-Jun Bi , Yuan-Ben Dai

We study the leptonic CP violation by employing the complete set of dimension-six pure leptonic effective operators. Connection among the observable at different energy scales can be made by the running of the renormalization group…

High Energy Physics - Phenomenology · Physics 2009-11-11 We-Fu Chang , John N. Ng

In the minimal Left-Right model the choice of left-right symmetry is twofold: either generalized parity $\mathcal P$ or charge conjugation $\mathcal C$. In the minimal model with spontaneously broken strict $\mathcal P$, a large tree-level…

High Energy Physics - Phenomenology · Physics 2014-11-11 Alessio Maiezza , Miha Nemevšek

The possibility of a strongly first-order electroweak phase transition is established in the minimal supersymmetric standard model with an extra $U(1)'$, where a nontrivial CP violating phase is introduced in its Higgs sector. We find that…

High Energy Physics - Phenomenology · Physics 2008-11-26 S. W. Ham , S. K. OH

We study the CP violation of universal seesaw model, especially its quark sector. The model is based on SU(2)_L \times SU(2)_R \times U(1)_{Y^\prime}. In order to count the number of parameters in quark sector, we use the degree of freedom…

High Energy Physics - Phenomenology · Physics 2015-06-16 Ryomu Kawasaki , Takuya Morozumi , Hiroyuki Umeeda

This series of five lectures describes aspects of CP violation, emphasizing its description within the standard electroweak model. After discussing the kaon system, the only place in which CP violation has been seen so far, we turn to the…

High Energy Physics - Phenomenology · Physics 2007-05-23 Jonathan L. Rosner

Although CP violation was discovered more than thirty years ago, its origin is still unknown. In these lectures, we describe the CP-violating effects which have been seen in K decays, and explain how CP violation can be caused by the…

High Energy Physics - Phenomenology · Physics 2007-05-23 Boris Kayser

We study an extension of the Standard Model (SM) in which two copies of the SM scalar $SU(2)$ doublet which do not acquire a Vacuum Expectation Value (VEV), and hence are \textit{inert}, are added to the scalar sector. We allow for…

High Energy Physics - Phenomenology · Physics 2016-12-21 A. Cordero-Cid , J. Hernández-Sánchez , V. Keus , S. F. King , S. Moretti , D. Rojas , D. Sokołowska

In this manuscript, we present an explicit way to describe the violation of CP symmetry in the standard model (SM) of electroweak interactions. In such a way, complex Cabbibo-Kobayashi-Maskawa (CKM) matrices are achieved which stand for the…

High Energy Physics - Phenomenology · Physics 2020-08-20 Chilong Lin

It is shown that in R-parity violating models of supersymmetry, the CP violation observed in the kaon system could arise purely from the R-parity violating scalar interactions (A-terms), with no CP violation in the CKM matrix. The direct CP…

High Energy Physics - Phenomenology · Physics 2009-10-30 S. A. Abel

We present a review of general picture in the sector of electroweak symmetry breaking with the CP-violation in the heavy quark interactions.

High Energy Physics - Phenomenology · Physics 2007-05-23 V. V. Kiselev

Models of spontaneous CP violation can solve the Strong CP problem without the need of an anomalous Peccei-Quinn symmetry. In this work we review the Nelson-Barr approach, quantifying a peculiar coincidence between unrelated mass scales…

High Energy Physics - Phenomenology · Physics 2022-05-10 Alessandro Valenti

We investigate a composite model of spontaneous CP violation based on a new supersymmetric QCD as a solution to the strong CP problem. The scalar components of the meson chiral superfields obtain complex vacuum expectation values to break…

High Energy Physics - Phenomenology · Physics 2024-06-04 Shota Nakagawa , Yuichiro Nakai , Yaoduo Wang

We study the production and decay of charged scalars, eta^\pm, in the context of a CP-Violating Inert-Doublet Model. The model is an extended version of the Inert Doublet Model with an extra Higgs doublet and provides new sources of CP…

High Energy Physics - Phenomenology · Physics 2014-03-14 P. Osland , A. Pukhov , G. M. Pruna , M. Purmohammadi

We show that in a Complementary two-Higgs doublet model(C2HDM) the CP violating phase in the CKM matrix can be generated spontaneously, dangerous FCNC can be naturally suppressed and the strong CP problem can also be avoided. The two Higgs…

High Energy Physics - Phenomenology · Physics 2017-05-31 Wei Liao

Motivated by the possibility of the formation of CP-odd domains in heavy ion collisions, we investigate the effects of CP violation on the chiral transition within the linear sigma model with two flavors of quarks. We also study how the…

High Energy Physics - Phenomenology · Physics 2010-04-21 Ana Júlia Mizher , Eduardo S. Fraga

$CP$ violating phenomena predicted by the minimal supersymmetric standard model are discussed in a case where the $CP$ violating phases in SUSY sector are not suppressed. The electric dipole moments of the neutron and the electron are…

High Energy Physics - Phenomenology · Physics 2015-06-25 Yoshiki Kizukuri , Noriyuki Oshimo
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