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Related papers: A bound on the charm chromo-EDM and its implicatio…

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There are a number of studies in the literature on search for Charge-Parity (CP) violating signals in top quark productions at the LHC. In most of these studies, ChromoMagnetic Dipole Moments (CMDM) and ChromoElectric Dipole Moments (CEDM)…

High Energy Physics - Experiment · Physics 2023-07-05 B. Işıldak , A. Hayreter , M. Hüdaverdi , F. Ilgın , S. Salva , E. Şimşek , S. Güyer

This chapter of the report of the ``Flavour in the era of the LHC'' Workshop discusses the theoretical, phenomenological and experimental issues related to flavour phenomena in the charged lepton sector and in flavour-conserving…

Electric dipole moment (EDM) of baryons provides a sensitive probe of CP-violating interactions beyond the Standard Model. Motivated by the recent BESIII measurement on the $\Lambda$-hyperon EDM [1], we present the first perturbative QCD…

High Energy Physics - Phenomenology · Physics 2026-02-05 Kai-Bao Chen , Xiao-Gang He , Jian-Ping Ma , Xuan-Bo Tong

We explore CP-violating (CPV) effects of heavy New Physics in flavour-changing quark dipole transitions, within the framework of Standard Model Effective Field Theory (SMEFT). First, we establish the relevant dimension six operators and…

High Energy Physics - Phenomenology · Physics 2023-06-30 Svjetlana Fajfer , Jernej F. Kamenik , Nejc Košnik , Aleks Smolkovič , Michele Tammaro

In these proceedings I present a personal perspective of the challenges for new physics (NP) searches in the flavour sector. Since the CKM mechanism of flavour violation has been established to a very high precision, we know that physics…

High Energy Physics - Phenomenology · Physics 2014-09-12 Andreas Crivellin

In these proceedings we review the flavour phenomenology of 2HDMs with generic Yukawa structures. We first consider the quark sector and find that despite the stringent constraints from FCNC processes large effects in tauonic B decays are…

High Energy Physics - Phenomenology · Physics 2022-08-09 Andreas Crivellin , Christoph Greub , Ahmet Kokulu

Complex flavour couplings (off-diagonal mass terms) in the squark sector of supersymmetric theories may drastically alter both the rate and the CP-violating asymmetry of certain B-meson decays. We consider the effects of couplings that…

High Energy Physics - Phenomenology · Physics 2011-03-23 E. Lunghi , D. Wyler

We study quark and electron EDMs generated by Yukawa couplings in supersymmetric models with different gauge groups, using the EDM properties under flavour transformations. In the MSSM (or if soft terms are mediated below the unification…

High Energy Physics - Phenomenology · Physics 2009-10-09 Andrea Romanino , Alessandro Strumia

We present a systematic survey of possible short-distance new-physics effects in (semi)leptonic charged- and neutral-current charmed meson decays. Using the Standard Model Effective Field Theory (SMEFT) to analyze the most relevant…

High Energy Physics - Phenomenology · Physics 2020-12-02 Javier Fuentes-Martin , Admir Greljo , Jorge Martin Camalich , Jose David Ruiz-Alvarez

We consider the approximate U(2)^3 flavour symmetry exhibited by the quark sector of the Standard Model and all its possible breaking terms appearing in the quark Yukawa couplings. Taking an Effective Field Theory point of view, we…

High Energy Physics - Phenomenology · Physics 2015-06-05 Riccardo Barbieri , Dario Buttazzo , Filippo Sala , David M. Straub

The observation of anomalies in the charged current $b\rightarrow c\bar{\ell}\nu_{\ell}$ transitions hints the possibility of the existence of new physics beyond the standard model. Inspired by the work done in the beauty quark sector, we…

High Energy Physics - Phenomenology · Physics 2022-07-12 Karthik Jain , Barilang Mawlong

With the long-standing tension between experiment and Standard-Model (SM) prediction in the anomalous magnetic moment of the muon, $a_\mu=(g-2)_\mu/2$, at the level of 3-4$\sigma$, it is natural to ask if there could be a sizable effect in…

High Energy Physics - Phenomenology · Physics 2018-12-12 Andreas Crivellin , Martin Hoferichter , Philipp Schmidt-Wellenburg

Recently, the LHCb and CDF collaborations reported the measure of an unexpectedly large direct CP asymmetry in D meson decays. In this paper we ask if new physics associated with Partial Compositeness could plausibly explain this result. We…

High Energy Physics - Phenomenology · Physics 2012-11-01 Boaz Keren-Zur , Paolo Lodone , Marco Nardecchia , Duccio Pappadopulo , Riccardo Rattazzi , Luca Vecchi

We study the flavor physics in two extensions of the quark sector of the Standard Model (SM): a four generation model and a model with a single vector--like down--type quark (VDQ). In our analysis we take into account the experimental…

High Energy Physics - Phenomenology · Physics 2009-11-07 Tomer Yanir

We demonstrate that electric dipole moments (EDMs) strongly constrain possible SUSY contributions to the CP asymmetries of B processes; LL and/or RR flavour mixings between second and third generations are severely restricted by the…

High Energy Physics - Phenomenology · Physics 2014-11-18 S. Abel , S. Khalil

This paper presents the results of searches for the flavor-changing neutral current, lepton-number-violating and lepton-flavor-violating processes in the charm mesons decays. Recent results from charged $D$ mesons decays to final states…

High Energy Physics - Experiment · Physics 2008-11-26 Hai-Bo Li

Relativistic many-body methods at different levels of approximations are employed to gain insights into the passage of the electron correlations from lower to higher levels in the accurate determination of the electric dipole polarizability…

Atomic Physics · Physics 2015-03-18 Yashpal Singh , B. K. Sahoo

We summarize recent results for charm physics. These results span several categories: charm mixing, indirect (time-dependent) CP violation, direct (time-integrated) CP violation, T violation, semileptonic and leptonic decays, and decays of…

High Energy Physics - Experiment · Physics 2018-08-01 A. J. Schwartz

We investigate the electromagnetic properties of possible charm-strange pentaquarks in the framework of the light-cone QCD sum rule using the photon distribution amplitudes. In particular, by calculating the corresponding electromagnetic…

High Energy Physics - Phenomenology · Physics 2018-09-05 K. Azizi , U. Ozdem

After a short review of the theoretical tools available to describe heavy flavour physics I sketch the present profile of the weak dynamics of charm hadrons with respect to lifetimes, oscillations and CP violation. I argue that…

High Energy Physics - Phenomenology · Physics 2016-11-23 I. I. Bigi