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We discuss the testability of CP-violating phases at future lepton colliders for the scenario which satisfies electric dipole moment data by destructive interferences among several phases. We consider the general but aligned two Higgs…

高能物理 - 唯象学 · 物理学 2021-05-05 Shinya Kanemura , Mitsunori Kubota , Kei Yagyu

The decay $B^0_s\to\mu^+\mu^-$ is a key probe for the search of physics beyond the Standard Model. While the current measurements of the corresponding branching ratio agree with the Standard Model within the uncertainties, significant…

高能物理 - 唯象学 · 物理学 2018-01-17 Robert Fleischer , Daniela Galárraga Espinosa , Ruben Jaarsma , Gilberto Tetlalmatzi-Xolocotzi

Evidence of physics beyond the Standard Model (SM) of particle physics might be revealed through CP violation. Experimental results from BaBar, Belle, and most recently from LHCb are very interesting in this respect. It is important to…

高能物理 - 唯象学 · 物理学 2015-04-20 Jihn E. Kim , Doh Young Mo , Soonkeon Nam

The B-meson system provides many strategies to perform stringent tests of the Standard-Model description of CP violation. In this brief review, we discuss implications of the currently available B-factory data on the angles alpha, beta and…

高能物理 - 唯象学 · 物理学 2010-11-23 Robert Fleischer

In this Snowmass whitepaper, we describe the impact of ongoing and proposed intensity frontier experiments on the parameter space of the Minimally Supersymmetric Standard Model (MSSM). We extend a set of phenomenological MSSM (pMSSM) models…

高能物理 - 唯象学 · 物理学 2013-10-01 Joshua Berger , Matthew W. Cahill-Rowley , Diptimoy Ghosh , JoAnne L. Hewett , Ahmed Ismail , Thomas G. Rizzo

Contributions to B - \bar B mixing from physics beyond the standard model may be detected from CP-violating asymmetries in B decays. There exists the possibility of large new contributions that cannot be detected by first generation…

高能物理 - 唯象学 · 物理学 2009-10-31 Lincoln Wolfenstein

We review the salient features of a comparative study of the profile of the CKM unitarity triangle, and the resulting CP-violating phases $\alpha$, $\beta$ and $\gamma$ in B decays, in the standard model and in several variants of the…

高能物理 - 唯象学 · 物理学 2010-11-23 Ahmed Ali , David London

We consider machine learning techniques associated with the application of a Boosted Decision Tree (BDT) to searches at the Large Hadron Collider (LHC) for pair-produced lepton partners which decay to leptons and invisible particles. This…

We argue that CP--violation effects below a few tenths of a percent are probably undetectable at hadron and electron colliders. Thus only operators whose contributions interfere with tree--level Standard Model amplitudes are detectable. We…

高能物理 - 唯象学 · 物理学 2010-11-01 C. Im , G. Kane , P. Malde

In the Minimal Supersymmetric Standard Model (MSSM) with complex parameters, one-loop corrections to the decay of a stop into a bottom-quark and a chargino can lead to a CP violating decay rate asymmetry. We perform a detailed numerical…

高能物理 - 唯象学 · 物理学 2009-09-23 Sebastian M. R. Frank

It is shown that in the approximation of $|\frac{q}{p}|$=1 the CP violation in $B^0_{d,s} \to l^+ l^-$ decays vanishes in SM. In a 2HDM with CP violating phases and MSSM the CP asymmetries depend on the parameters of models and can be as…

高能物理 - 唯象学 · 物理学 2009-10-31 Chao-Shang Huang , Liao Wei

We study implications of spontaneous CP-violation in minimal susy models for CP-asymmetries in rare $B,\bar B$-decays. In particular, we estimate characteristic values of the angles of the unitarity triangle and show that sizeable…

高能物理 - 唯象学 · 物理学 2010-11-23 Oleg Lebedev

We present here the CP asymmetries in the decay rate and angular distributions of $\tau\to K_S\pi\nu_\tau$ decays in the Standard Model (SM) and beyond (BSM). The CP asymmetries in the SM are induced by the CP violation in $K^0-\bar{K}^0$…

高能物理 - 唯象学 · 物理学 2024-07-08 Feng-Zhi Chen , Xin-Qiang Li

We present the contributions of new CP phases in CP asymmetries of two-body neutral $B_s$ decays coming from a left--right model with spontaneous CP violation. Large deviations from the Standard Model predictions can be accommodated in a…

高能物理 - 唯象学 · 物理学 2007-05-23 J. Matias

We present a low-scale type-I seesaw scenario with discrete flavor and CP symmetries. This scenario not only explains the measured values of the lepton mixing angles, but also makes predictions for leptonic CP violation, and connects the…

高能物理 - 唯象学 · 物理学 2023-01-03 Garv Chauhan , P. S. Bhupal Dev

We study the phenomenological implications of the Higgs sector CP violation at a photon collider. In our model, the CP violation is radiatively induced by the non-trivial CP phases of the third-generation scalar-quark sector in the MSSM. We…

高能物理 - 唯象学 · 物理学 2007-05-23 Jae Sik Lee

We analyze CP violation in resonant transitions involving scalar as well as fermionic intermediate states, using a gauge-invariant resummation approach implemented by the pinch technique. We derive the necessary conditions for resonantly…

高能物理 - 唯象学 · 物理学 2009-09-15 Apostolos Pilaftsis

Under the assumption that the various evidences of a `95 GeV' excess, seen in data at the Large Electron Positron (LEP) collider as well as the Large Hadron Collider (LHC), correspond to actual signals of new physics Beyond the Standard…

高能物理 - 唯象学 · 物理学 2025-08-27 Tanmoy Mondal , Stefano Moretti , Prasenjit Sanyal

A variety of CP violating asymmetries in $B^0$ decays is predicted in the Standard Model in terms of CKM (Cabibbo-Kobayashi-Maskawa) complex phases. These phases can also be determined from rate measurements of certain $B^+$ and $B^-$…

高能物理 - 唯象学 · 物理学 2009-10-28 Michael Gronau

We study the potential to observe CP-violating effects in SUSY cascade decay chains at the LHC. We consider squark and gluino production followed by subsequent decays into neutralinos with a three-body leptonic decay in the final step.…

高能物理 - 唯象学 · 物理学 2010-01-22 G. Moortgat-Pick , K. Rolbiecki , J. Tattersall , P. Wienemann