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We proposed how spontaneous CP-violation can be generated in the simplest little Higgs model in this talk. Comparing with the original paper, both formalism and phenomenology are updated. The model is still alive facing the collider and…

High Energy Physics - Phenomenology · Physics 2019-08-20 Ying-nan Mao

We derive sufficient conditions that guarantee a robust solution of the strong CP problem in theories with spontaneous CP violation, and introduce a class of models satisfying these requirements. In the simplest scenarios the dominant…

High Energy Physics - Phenomenology · Physics 2014-12-15 Luca Vecchi

By studying the effective potential of the MSSM at finite temperature, we find that CP can be spontaneously broken in the intermediate region between the symmetric and broken phases separated by the bubble wall created at the phase…

High Energy Physics - Phenomenology · Physics 2009-10-31 K. Funakubo , A. Kakuto , S. Otsuki , F. Toyoda

We propose a possibility of spontaneous CP-violation (SCPV) at high scale in a SUSY SO(10) theory. The model is L-R symmetric SUSY SO(10) with \textbf{\noun{10}} and \textbf{126} dimensional Higgs generating fermion masses, and the CP phase…

High Energy Physics - Phenomenology · Physics 2014-07-28 Kalpana Bora

I present a new form of spontaneous CP violation in which, in analogy with the left-right-symmetric model, CP breaking results from the inequality of two real vacuum expectation values. In my model there is no scalar-pseudoscalar mixing,…

High Energy Physics - Phenomenology · Physics 2009-10-30 L. Lavoura

We propose the complex group theoretical Clebsch-Gordon coefficients as a novel origin of CP violation. This is manifest in our model based on SUSY SU(5) combined with the double tetrahedral group, T', as a family symmetry. Due to the…

High Energy Physics - Phenomenology · Physics 2011-08-09 Mu-Chun Chen , K. T. Mahanthappa

We briefly review the question of spontaneous CP violation in some models of weak interactions. The next-to-minimal supersymmetric standard model, with two Higgs doublets and one gauge singlet, is one of the minimal extensions of the…

High Energy Physics - Phenomenology · Physics 2007-05-23 Ana M. Teixeira

We re-examine direct CP violation in the quasi-two-body $D\to V\!P$ decays and study CP asymmetries in three-body $D$ decays proceeding through intermediate vector resonances within the framework of the topological amplitude approach for…

High Energy Physics - Phenomenology · Physics 2021-09-07 Hai-Yang Cheng , Cheng-Wei Chiang

We analyze generalized CP symmetries of two-Higgs doublet models, extending them from the scalar to the fermion sector of the theory. We show that, with a single exception, those symmetries imply massless fermions. The single model which…

High Energy Physics - Phenomenology · Physics 2011-02-09 P. M. Ferreira , Joao P. Silva

If the geometry of space-time is $\nc$, i.e. $[x_{\mu},x_{\nu}]=i \theta_{\mu \nu}$, then $\nc$ $\cpviolng$ effects may be manifest at low energies. For a $\nc$ scale $\Lambda \equiv \theta^{-1/2} \leq 2 TeV$, $\cpviol$ from $\ncg$ is…

High Energy Physics - Phenomenology · Physics 2014-11-17 I. Hinchliffe , N. Kersting

We propose that the recently observed violation of the Wiedemann-Franz law in the normal state of underdoped cuprates is caused by spin-charge separation and dynamical chiral symmetry breaking in a (2+1)-dimensional system consisting of…

Superconductivity · Physics 2009-11-07 Guo-Zhu Liu , Geng Cheng

We define the CP transformation properties of scalars, fermions and vectors in a gauge theory and show that only three types of interactions can lead to CP violation: scalar interactions, fermion-scalar interactions and $ F \tilde F $…

High Energy Physics - Phenomenology · Physics 2009-10-31 Martin B. Einhorn , Jose Wudka

The special features of CP violation in the Standard Model are presented. The significance of measuring CP violation in B, K and D decays is explained. The predictions of the Standard Model for CP asymmetries in B decays are analyzed in…

High Energy Physics - Phenomenology · Physics 2007-05-23 Yosef Nir

By treating CP-violating interaction as a perturbative term, we solve the Dirac equation in the background of electroweak bubble wall (the distorted wave Born approximation). We obtain the transmission and reflection coefficients for a…

High Energy Physics - Phenomenology · Physics 2009-09-25 K. Funakubo , A. Kakuto , S. Otsuki , K. Takenaga , F. Toyoda

CP-violation in the loop-mediated photon-photon interactions would modify the birefringence of the quantum vacuum. We discuss the implications of this effect on the PVLAS-Phase II experiment, in which a time-dependent magnetic field is…

High Energy Physics - Phenomenology · Physics 2010-04-30 R. Millo , P. Faccioli

We begin with a few remarks on an explicit construction of a Bargmann-Wightman-Wigner-type quantum field theory [Phys. Lett. B {\bf 316}, 102 (1993)] in which bosons and associated antibosons have opposite relative intrinsic parities. We…

High Energy Physics - Theory · Physics 2007-05-23 D. V. Ahluwalia , M. B. Jonnson , T. Goldman

Following earlier ideas of Dolgov, we show that the asymmetrical dynamical evolution of fields in the early Universe provides a new source for CP violation. This can lead to baryogenesis without any additional CP-violating interactions. The…

High Energy Physics - Phenomenology · Physics 2014-11-17 K. R. S. Balaji , Tirthabir Biswas , Robert H. Brandenberger , David London

Models that combine Abelian horizontal symmetries and spontaneous CP violation can (i) explain the smallness and hierarchy in quark parameters; (ii) satisfactorily suppress supersymmetric contributions to flavor changing neutral current…

High Energy Physics - Phenomenology · Physics 2009-10-28 Yosef Nir , Riccardo Rattazzi

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

In a recent paper[1] Kundu and one of the present authors showed that there were transient but observable CP violating effects in the decay of classical currents on the horizon of a black hole, if the Lagrangian of the Maxwell field…

High Energy Physics - Theory · Physics 2015-05-19 Tom Banks , Willy Fischler