English
Related papers

Related papers: Landscaping CP-violating BSM scenarios

200 papers

We present an analysis of low energy CP violating observables in the Minimal Supersymmetric Standard Model (MSSM). We focus on the predictions of CP violation in b -> s transitions in the framework of a flavor blind MSSM, where the CKM…

High Energy Physics - Phenomenology · Physics 2015-05-14 Wolfgang Altmannshofer

We report on an investigation of CP violation in (un)polarized $e^+e^-\to{\bar t}t$ resulting from an extended neutral Higgs sector or from the minimal SUSY extension of the Standard Model (SM). We consider c.m. energies from the ${\bar…

High Energy Physics - Phenomenology · Physics 2007-05-23 W. Bernreuther , A. Brandenburg , P. Overmann

Recent improvements to the limit of Delta M_{B_s} imply that pure superweak theories, while not excluded, no longer provide a good fit to the data. A class of general superweak theories is introduced in which all flavor changing…

High Energy Physics - Phenomenology · Physics 2009-10-30 Riccardo Barbieri , Lawrence Hall , Achille Stocchi , Neal Weiner

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

High Energy Physics - Phenomenology · Physics 2015-05-14 Mu-Chun Chen , K. T. Mahanthappa

We argue that CP violation has rather dramatic impact on the "gravity as the weakest force" conjecture. Namely we find that new ultraviolet scale must be $\Lambda \lesssim \theta g^3 M_P$, where $\theta$ is an effective parameter describing…

High Energy Physics - Theory · Physics 2008-07-05 Archil Kobakhidze

We review basic aspects of the phenomenology of CP violation in the decays of $K$ and $B$ mesons. In particular we discuss the commonly used classification of CP violation -- CP violation in the mass matrix, in the interference of mixing…

High Energy Physics - Phenomenology · Physics 2009-10-30 Gerhard Buchalla

We proposed the spontaneous CP-violation in the Simplest Little Higgs model. In this model, the pseudoscalar field can acquire a nonzero vacuum expected value. It leads to a mixing between the two scalars with different CP-charge, which…

High Energy Physics - Phenomenology · Physics 2018-05-08 Ying-nan Mao

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

CP violation in $B$ decays is reviewed in the Standard Model (SM) and beyond the SM. The present explanation of CP violation in terms of a phase in the Cabibbo-Kobayashi-Maskawa (CKM) matrix can be tested through a variety of CP asymmetries…

High Energy Physics - Phenomenology · Physics 2016-09-06 Michael Gronau

We investigate the parameter space supporting large CP violation (CPV) in the complex two-Higgs-doublet model with softly broken $Z_{2}$ symmetry, where the 125~GeV Higgs boson is identified as the lightest neutral Higgs boson $H_1$.…

High Energy Physics - Phenomenology · Physics 2026-05-21 Soojin Lee , A. Hammad , Dongjoo Kim , Jeonghyeon Song

We briefly comment on the question of spontaneous CP violation for several models of weak interactions. We focus on one of the minimal extensions of the Standard Model where spontaneous CP violation is viable,the next-to-minimal…

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

In this presentation, we discuss recent key topics in theoretical analyses of CP violation in benchmarks decays of the $B$ meson. We provide the most updated values of the mixing phases and discuss the importance of including the penguin…

High Energy Physics - Phenomenology · Physics 2024-02-28 Eleftheria Malami

We formulate the conditions under which a purely bosonic theory (without fermions) containing neutral spin-0 particles and vector (gauge) bosons violates the CP-symmetry through the presence of CP-even and CP-odd operators in the…

High Energy Physics - Phenomenology · Physics 2010-11-01 G. Cvetic , M. Nowakowski , A. Pilaftsis

We give a pedagogical review of the theory of CP violation with emphasis on the implications of recent experimental results. The review includes: (i) A detailed description of how CP violation arises in the Standard Model and in its…

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

We analyse the impact of explicit CP-violation in the Higgs sector of the Next-to-Minimal Supersymmetric Standard Model (NMSSM) on its consistency with the Higgs boson data from the Large Hadron Collider (LHC). Through detailed scans of the…

High Energy Physics - Phenomenology · Physics 2015-08-04 Stefano Moretti , Shoaib Munir

We reexamine large CP-violating phases in the general Minimal Supersymmetric Standard Model, as well as more restricted models. We perform a detailed scan over parameter space to find solutions which satisfy the current experimental limits…

High Energy Physics - Phenomenology · Physics 2009-09-15 V. Barger , T. Falk , T. Han , J. Jiang , T. Li , T. Plehn

We investigate precision observables sensitive to custodial symmetric/violating UV physics beyond the Standard Model. We use the SMEFT framework which in general includes non-oblique corrections that requires a generalization of the…

High Energy Physics - Phenomenology · Physics 2021-09-15 Graham D. Kribs , Xiaochuan Lu , Adam Martin , Tom Tong

The relation between leptogenesis and CP violation at low energies is analyzed in detail in the framework of the minimal seesaw mechanism. Working, without loss of generality, in a weak basis where both the charged lepton and the…

High Energy Physics - Phenomenology · Physics 2008-11-26 G. C. Branco , R. Gonzalez Felipe , F. R. Joaquim , I. Masina , M. N. Rebelo , C. A. Savoy

We explore the phenomenology of Weinberg's $Z_2\times Z_2$ symmetric three-Higgs-doublet potential, allowing for spontaneous violation of CP due to complex vacuum expectation values. An overview of all possible ways of satisfying the…

High Energy Physics - Phenomenology · Physics 2025-09-17 O. M. Ogreid , P. Osland , M. N. Rebelo

We propose a generic and model-independent search strategy for probing tree-level CP-violation in inclusive multi-lepton signals and we extend the standard expression for tree-level CP-violation in scattering processes at the LHC to include…

High Energy Physics - Phenomenology · Physics 2023-05-17 Shaouly Bar-Shalom
‹ Prev 1 4 5 6 7 8 10 Next ›