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相关论文: Indirect constraints on New Physics from the B-fac…

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We suggest a discriminant analysis of new physics beyond the standard model through a detection of photon polarization in a radiative B meson decay. This analysis is investigated in SUSY SU(5) GUT with right-handed neutrino and left-right…

高能物理 - 唯象学 · 物理学 2015-04-07 Naoyuki Haba , Hiroyuki Ishida , Tsuyoshi Nakaya , Yasuhiro Shimizu , Ryo Takahashi

Current dark matter direct detection experiments have low sensitivity to sub-GeV dark matter. In this work, we demonstrate that rare $B$ and $K$ meson decays with missing energy in the final state can serve as efficient probes in this mass…

高能物理 - 唯象学 · 物理学 2026-01-05 Ze-Kun Liu , Ying Li , Biao-Feng Hou , Qin Chang

Dedicated underground experiments searching for dark matter have little sensitivity to GeV and sub-GeV masses of dark matter particles. We show that the decay of B mesons to K(K^*) and missing energy in the final state can be an efficient…

高能物理 - 唯象学 · 物理学 2008-11-26 Chris Bird , Paul Jackson , Robert Kowalewski , Maxim Pospelov

An excess in the branching fraction for $B^+ \to K^+ \nu\nu$ recently measured at Belle II may be a hint of new physics. We perform thorough likelihood analyses for different new physics scenarios such as $B \to KX$ with a new invisible…

高能物理 - 唯象学 · 物理学 2024-07-11 Kåre Fridell , Mitrajyoti Ghosh , Takemichi Okui , Kohsaku Tobioka

I present a review of using rare B decays to search for physics beyond the Standard Model. B decays that proceed either through annihilation or loop topologies at leading order in the Standard Model provide unique probes in the search for…

高能物理 - 实验 · 物理学 2007-05-23 Owen Long

Precision experiments at low energies probing weak interaction are a very promising and complementary tool for investigating the structure of the electro-weak sector of the standard model, and for searching for new phenomena revealing signs…

高能物理 - 实验 · 物理学 2010-02-25 Stephan Paul

Belle~II has unique sensitivity for a broad class of models postulating the existence of dark matter particles with masses in the MeV--GeV range. We present recent world-leading results from Belle~II searches for several non-SM particles.…

高能物理 - 实验 · 物理学 2024-01-17 Luigi Corona

Recent measurements in the charm sector are reviewed, concentrating on results which are sensitive to New Physics effects. The scope of the presentation includes D0-D0bar mixing searches, a CPT / Lorentz invariance study, and a range of…

高能物理 - 实验 · 物理学 2008-11-26 B. D. Yabsley

We study potential New Physics effects in the $\bar B \to D^{(*)} \tau \bar\nu$ decays. As a particular example of New Physics models we consider the class of leptoquark models and put the constraints on the leptoquark couplings using the…

高能物理 - 唯象学 · 物理学 2018-12-10 Yasuhito Sakaki , Minoru Tanaka , Andrey Tayduganov , Ryoutaro Watanabe

With the running B, kaon and neutrino physics experiments, flavour physics takes centre stage within today's particle physics. We discuss the opportunities offered by these experiments in our search for new physics beyond the SM and discuss…

高能物理 - 唯象学 · 物理学 2008-11-26 Tobias Hurth

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…

高能物理 - 唯象学 · 物理学 2013-07-02 Sheldon Stone

We discuss the sensitivity of the processes $e^+e^-\to t\bar t$ and $e^+e^-\to b\bar b$ to special sets of operators describing residual New Physics effects. Experimental data in this sector together with those expected in the bosonic…

高能物理 - 唯象学 · 物理学 2007-05-23 F. M. Renard

We examine the ability of future facilities to discover and interpret non-supersymmetric new phenomena. We first explore explicit manifestations of new physics, including extended gauge sectors, leptoquarks, exotic fermions, and technicolor…

高能物理 - 唯象学 · 物理学 2016-09-06 Stephen Godfrey , JoAnne L. Hewett , Lawrence E. Price

We study current constraints and search prospects for a GeV scale vector boson at a range of low energy experiments. It couples to the Standard Model charged particles with a strength <= 10^-3 to 10^-4 of that of the photon. The possibility…

高能物理 - 唯象学 · 物理学 2010-02-23 Matthew Reece , Lian-Tao Wang

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…

高能物理 - 唯象学 · 物理学 2022-03-02 Wolfgang Altmannshofer

While B0 and B+ mesons are well studied, mainly by the B factories, less is known about Bs mesons. Specifically large new physics effects may still be present in the Bs system. This unexplored region is studied by the CDF, D0, and Belle…

高能物理 - 实验 · 物理学 2019-08-15 Thomas Kuhr

The goal of the LHCb experiment is the indirect search for New Physics through precision measurements of B-decays. A short description of the detector and its performance after the first data taking in 2009 and 2010 will be presented. In…

高能物理 - 实验 · 物理学 2010-11-12 Christian Linn

The rare decays {$B^- \to \tau \bar\nu$}, \mbox{$B \to \tau^+ \tau^-$}, {$b \to X \nu \bar\nu$} and \mbox{$b \to X \tau^+ \tau^-$} all contain third generation leptons in the final state, and hence are sensitive to new physics that couples…

高能物理 - 唯象学 · 物理学 2008-11-26 Dafne Guetta , Enrico Nardi

One of the most pragmatic ways to look for the effects of New Physics at low energy scales is to study a detailed angular distribution of various decay modes, and in particular those based on $b\to c\ell\bar \nu_\ell$. In this paper we…

高能物理 - 唯象学 · 物理学 2022-11-04 Damir Bečirević , Florentin Jaffredo

This talk highlights, from a theoretical point of view, some recent exciting results in flavor physics, as well as future prospects. We discuss possible implications of a subset of the experimental results in tension with the standard…

高能物理 - 唯象学 · 物理学 2016-06-21 Zoltan Ligeti