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Related papers: New physics in $B$ meson mixing: future sensitivit…

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We have just entered a new round in the testing of the flavour sector of the Standard Model through high-precision measurements of B-meson decays. A particularly exciting aspect is the exploration of the B_s-meson system at LHCb. We focus…

High Energy Physics - Phenomenology · Physics 2015-03-17 Robert Fleischer

We illustrate the potential of a future high-intensity $e^+ e^-$ collider running at the $Z$ pole in probing extensions of the Standard Model via precise measurements of flavor-changing processes. We illustrate this potential both within…

High Energy Physics - Phenomenology · Physics 2025-03-24 Lukas Allwicher , Gino Isidori , Marko Pesut

I report on investigations of physics beyond the Standard Model using experiments designed to investigate $b$ quark and $c$ quark interactions. Generalized searches involving loop diagrams using heavy meson mixing and CP violation…

High Energy Physics - Phenomenology · Physics 2013-07-02 Sheldon Stone

Semileptonic decays of $B$ mesons that proceed via $b\rightarrow u$ and $b\rightarrow c$ transitions, as well as rare leptonic $B$ decays, are fertile grounds for probing new physics beyond the Standard Model. The Belle II experiment…

High Energy Physics - Experiment · Physics 2023-03-06 Priyanka Cheema

We summarize the physics case of a high-luminosity e+e- flavour factory collecting an integrated luminosity of 50-75 ab^(-1). Many New Physics sensitive measurements involving B and D mesons and tau leptons, unique to a Super Flavour…

High Energy Physics - Phenomenology · Physics 2009-04-17 T. Browder , M. Ciuchini , T. Gershon , M. Hazumi , T. Hurth , Y. Okada , A. Stocchi

The existence of New Physics particles can be probed by performing precision measurements of physics phenomena at the few GeV energy scale. The decays of B and D mesons are an excellent example of relatively low energy phenomena that can be…

High Energy Physics - Experiment · Physics 2019-08-14 A. Gaz

An impressive progress in measurements of the D-\bar D mixing parameters has been made in recent years. We explore the implications of these measurements to models of new physics, especially in view of recent upper bounds on the amount of…

High Energy Physics - Phenomenology · Physics 2009-10-27 Oram Gedalia , Yuval Grossman , Yosef Nir , Gilad Perez

The ability of present and future experiments to test the Standard Model in the $B$ meson sector is described. We examine the loop effects of new interactions in flavor changing neutral current $B$ decays and in $Z\to b\bar b$,…

High Energy Physics - Phenomenology · Physics 2007-05-23 J. L. Hewett

This talk explores the role of flavor physics to constrain beyond standard model phenomena and future prospects, from a theoretical point of view. Possible implications of some experimental results in tension with the standard model are…

High Energy Physics - Phenomenology · Physics 2017-04-11 Zoltan Ligeti

The recent measurement of $R_K$ at LHCb continues to support the hint of violation of lepton flavor universality. We perform a global fit for new physics in semileptonic $b\to s$ transitions using all the relevant data with a Bayesian…

High Energy Physics - Phenomenology · Physics 2019-06-21 Dinesh Kumar , Kamila Kowalska , Enrico Maria Sessolo

We consider three possible scenarios of new physics in B^0_d-\bar{B}^0_d mixing and propose a simple framework for analyzing their effects. This framework allows us to study the CP asymmetry in semileptonic B_d decays ({\cal A}_{SL}) and…

High Energy Physics - Phenomenology · Physics 2009-10-30 A. I. Sanda , Zhi-zhong Xing

CP violation in neutral $B$ meson oscillations is an experimental observable that could be directly related to the baryon asymmetry of the Universe through the $B$-Mesogenesis mechanism. As this phenomenon is highly suppressed in the…

High Energy Physics - Phenomenology · Physics 2024-10-21 Carlos Miró , Miguel Escudero , Miguel Nebot

The constraints on the mixing angles of the standard fermions with new heavy particles that can appear in many extensions of the electroweak theory are reviewed. Some emphasis is put in distinguishing the effects of a mixing with new states…

High Energy Physics - Phenomenology · Physics 2007-05-23 Enrico Nardi

In this talk, I review the status and prospects of several low energy flavor observables that are highly sensitive to New Physics effects. In particular I discuss the implications for possible New Physics in b --> s transitions coming from…

High Energy Physics - Phenomenology · Physics 2022-03-02 Wolfgang Altmannshofer

A 4th generation could be consistent with the recently measured $\Delta m_{B_s}$ as well as ${\cal B}(b\to s\ell^+\ell^-)$, which are SM-like, but generate large $\sin2\Phi_{B_s} \simeq -0.5$ to -0.7. The sign is determined by the hint for…

High Energy Physics - Phenomenology · Physics 2017-08-23 George W. S. Hou

We analyse three different New Physics scenarios for Delta F=2 flavour-changing neutral currents in the quark sector in the light of recent data on neutral-meson mixing. We parametrise generic New Physics contributions to B_q-Bbar_q mixing…

High Energy Physics - Phenomenology · Physics 2011-03-03 A. Lenz , U. Nierste , J. Charles , S. Descotes-Genon , A. Jantsch , C. Kaufhold , H. Lacker , S. Monteil , V. Niess , S. T'Jampens

The FCC-ee phase of a Future Circular Collider is generating great interest due to its versatility, allowing the study of various electroweak thresholds, $Z$, $WW$, $ZH$, and $t \bar{t}$. Electroweak precision physics is complemented by…

High Energy Physics - Phenomenology · Physics 2025-10-28 Luiz Vale Silva

The phenomenon of $B^0_q$-$\bar{B}^0_q$ mixing ($q=d,s$) provides a sensitive probe for physics beyond the Standard Model. We have a careful look at the determination of the Unitarity Triangle apex, which is needed for the Standard Model…

High Energy Physics - Phenomenology · Physics 2023-02-01 Kristof De Bruyn , Robert Fleischer , Eleftheria Malami , Philine van Vliet

Precision studies of flavour-changing processes involving quarks and leptons provide a number of ways to improve knowledge of the Standard Model and search for physics beyond it. There are excellent short- and mid-term prospects for…

High Energy Physics - Experiment · Physics 2025-05-07 The ATLAS Collaboration , Belle II Collaboration , CMS Collaboration , LHCb Collaboration

We explore the possibility of using CP violation in B decays to detect the presence of physics beyond the Standard Model. We first study the possibility of new physics in the $B-\bar B$ mixing amplitude. We discuss a construction to extract…

High Energy Physics - Phenomenology · Physics 2007-05-23 Mihir P. Worah