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相关论文: Present Status of b -> s l+ l- Anomalies

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Recently, the LHC has found several anomalies in exclusive semileptonic b --> s l^+ l^- decays. In this proceeding, we summarize the most important results of our global analysis of the relevant decay modes. After a discussion of the…

高能物理 - 唯象学 · 物理学 2016-05-20 Sébastien Descotes-Genon , Lars Hofer , Joaquim Matias , Javier Virto

We review the status of the anomalies in $b\to s \ell\ell$ transitions, and comment on the impact of the most recent measurements in 2019 and 2020 on the global fits. We also discuss a few developments in the theory calculation of local and…

高能物理 - 唯象学 · 物理学 2021-03-02 Javier Virto

At the present time, there are a number of measurements of $B$-decay observables that disagree with the predictions of the standard model. These discrepancies have been seen in processes governed by two types of decay: (i) $b \to s \mu^+…

高能物理 - 唯象学 · 物理学 2019-11-15 David London

We present an overview of the recent neutral current $B$ decays focusing on the deviations with respect to the Standard Model predictions that are observed in $b \to s \ell^+\ell^-$ transitions, and discuss their implications for new…

高能物理 - 唯象学 · 物理学 2022-08-12 F. Mahmoudi

The deviations with respect to the Standard Model that are currently observed in $b \to s \ell\ell$ transitions, or $B$ anomalies, can be interpreted in terms of different New Physics (NP) scenarios within a model-independent effective…

高能物理 - 唯象学 · 物理学 2019-09-04 Marcel Algueró , Bernat Capdevila , Sébastien Descotes-Genon , Pere Masjuan , Joaquim Matias

I review some aspects of $K$ and $B$ physics both in the context of the standard model and in some cases in a scenario which is rather different from the standard model. I discuss, in particular, where we are likely to see deviations from…

高能物理 - 唯象学 · 物理学 2007-05-23 Patrick J. O'Donnell

We review the current status and implications of the anomalies (i.e. deviations from the Standard Model predictions) in semi-leptonic $B$ meson decays, both in the charged and in the neutral current. In $b\to s\ell^+\ell^-$ transitions…

高能物理 - 唯象学 · 物理学 2023-12-25 Bernat Capdevila , Andreas Crivellin , Joaquim Matias

Depending on the assumptions on the power corrections to the exclusive b -> s l+ l- decays, the latest data of the LHCb collaboration - based on the 3 fb^-1 data set and on two different experimental analysis methods - still shows some…

高能物理 - 唯象学 · 物理学 2016-06-29 T. Hurth , F. Mahmoudi , S. Neshatpour

A short summary is given of the current status of B physics. Reasons for physics beyond the Standard Model are discussed. Constraints on New Physics are given using measurements of B mixing, Bs mixing, and CP violation, along with |Vub.…

高能物理 - 唯象学 · 物理学 2009-11-11 Sheldon Stone

This talk discusses possible new physics interpretations of recent experimental results on the B-->K*mu+mu- decay that show a discrepancy with the Standard Model predictions. A model independent analysis that takes into account all the…

高能物理 - 唯象学 · 物理学 2014-05-21 Wolfgang Altmannshofer

We investigate the implications of the latest LHCb measurement of $R_K$ for NP explanations of the $B$ anomalies. The previous data could be explained if the $b \to s \mu^+ \mu^-$ NP is in (I) $C_{9,{\rm NP}}^{\mu\mu}$ or (II) $C_{9,{\rm…

高能物理 - 唯象学 · 物理学 2019-08-14 Alakabha Datta , Jacky Kumar , David London

We present a detailed discussion of the current theoretical and experimental situation of the anomaly in the angular distribution of $B \to K^*(\to K\pi)\mu^+\mu^-$, observed at LHCb in the $1~\text{fb}^{-1}$ dataset and recently confirmed…

高能物理 - 唯象学 · 物理学 2016-07-20 Sébastien Descotes-Genon , Lars Hofer , Joaquim Matias , Javier Virto

Transitions of the type $b \to s l^+ l^-$ are flavour changing neutral current processes where new physics can enter in competing loop diagrams with respect to the Standard Model contributions. In these decays several observables sensitive…

高能物理 - 实验 · 物理学 2015-03-20 Nicola Serra

$B$ physics plays important roles in searching for the new physics (NP) beyond the standard model (SM). Recently, some deviations between experimental data and SM predictions were reported, namely $R(D^{(*)})$, $P_5^\prime$ and…

高能物理 - 唯象学 · 物理学 2018-08-10 Ying Li , Cai-Dian Lu

Some of the recent measurements in the neutral current sector $b\rightarrow s l^+l^-$ ($l=e$ or $\mu$) as well as in the charged current sector $b \rightarrow c \tau \bar{\nu}$ show significant deviations from their Standard Model…

高能物理 - 唯象学 · 物理学 2021-05-24 Suman Kumbhakar , Jyoti Saini

At the present time, there are discrepancies with the predictions of the SM in several observables involving $b \to s \ell^+ \ell^-$ and $b \to c \ell^- {\bar\nu}_\ell$ decays. These are the $B$ flavour anomalies. In this review, we…

高能物理 - 唯象学 · 物理学 2022-10-04 David London , Joaquim Matias

I provide a (personal) review of the current hints for physics beyond the Standard Model, called ``anomalies'', obtained both at the intensity frontier (flavour and electroweak precision observables) and in direct LHC searches. This…

高能物理 - 唯象学 · 物理学 2023-04-10 Andreas Crivellin

The LHCb measurements on the B ->$ K^*$$\mu^+ \mu^-$ angular observables have shown slight deviations from their Standard Model predictions. The significance of the deviations in the B -> $K^*$$\mu^+ \mu^-$ decay depends on the assumptions…

高能物理 - 唯象学 · 物理学 2017-05-31 S. Neshatpour , V. G. Chobanova , T. Hurth , F. Mahmoudi , D. Martinez Santos

Recent theoretical developments on $R_D$ and $R_{D^*}$ -- discrepancies between experimental data and the Standard Model predictions have been reported (B anomaly) -- are reviewed. New Physics explanations for the B anomaly and other…

高能物理 - 唯象学 · 物理学 2018-10-02 Ryoutaro Watanabe

The experimental information on b --> s l^+ l^- decays has grown enormously during the last couple of years due to BaBar, Belle, CDF and LHCb. Especially, exclusive modes B --> K^(*) l^+ l^-, which have the largest rate and are easily…

高能物理 - 唯象学 · 物理学 2012-08-16 Christoph Bobeth
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