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相关论文: Recent Results on Radiative and Electroweak Pengui…

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We present recent results for radiative and electroweak penguin decays of $B$ me son at Belle. Measurements of differential branching fraction, isospin asymmetr y, $K^*$ polarization, and forward-backward asymmetry as functions of $q^2$ for…

高能物理 - 实验 · 物理学 2009-06-01 Nanae Taniguchi , for Belle Collaboration

We report recent results on radiative $B$ decays at Belle at the KEKB collider.

高能物理 - 实验 · 物理学 2018-11-12 Akimasa Ishikawa

We report on new results on $B \to K^* \gamma$ and recent studies on $B \to K^* \ell^+ \ell^-$ and $B \to h \nu \bar{\nu}$ at Belle at KEKB accelerator. All the analyses used full data sample of 711~fb${}^{-1}$ taken on $\Upsilon(4S)$…

高能物理 - 实验 · 物理学 2017-10-10 Akimasa Ishikawa

We discuss recent experimental studies of radiative penguin decays of B mesons by the Belle and BaBar collaborations.

高能物理 - 实验 · 物理学 2007-10-08 J. Kroseberg

We report searches for the radiative penguin decays Bs to phi gamma and Bs to gamma gamma based on a 23.6 fb-1 data sample collected with the Belle detector at the KEKB e+e- energy-asymmetric collider operating at the Upsilon(5S) resonance.

高能物理 - 实验 · 物理学 2008-11-26 J. Wicht

In this article, I review the most recent results in radiative penguin decays from the B factories Belle and Babar. Most notably, I will talk about the recent new observations in the decays B -> (rho/omega) gamma, a new analysis technique…

高能物理 - 实验 · 物理学 2019-08-14 Karsten Koeneke

We present recent progresses in radiative penguin decays of $B$ meson using a large sample of $B\bar{B}$ pairs recorded at the $\Upsilon(4S)$ resonance with the Belle detector at the KEKB asymmetric energy $e^+e^-$ collider. We report…

高能物理 - 实验 · 物理学 2008-10-20 Jin Li

Rare decays of $B$ mesons to radiative final states serve as an ideal ground to search for New Physics effects from short range contributions. Observed by CLEO in the early 1990s as one of the first transitions of the electroweak penguin…

高能物理 - 实验 · 物理学 2024-04-03 Rahul Tiwary

The $b\to s(d)$ quark-level transitions are flavor-changing neutral current processes, which are not allowed at tree level in the standard model. These processes are very rare and constitute a potential probe for new physics. Belle II at…

高能物理 - 实验 · 物理学 2021-01-28 Soumen Halder

We report on the measurement of the decay $B\to K^{\star}\gamma$, lepton-flavor dependent angular analysis of the decay $B\to K^{\star}\ell\ell$, and search for the decays $B\to h\nu\nu$. All these analyses are performed on the 711…

高能物理 - 实验 · 物理学 2017-09-12 S. Sandilya

We summarise the most recent results of the Belle experiment about flavour changing neutral current (FCNC) radiative and (semi-) leptonic B decays. In particular, we report about the first observation of the decays B->K*l+l-, B->phi K…

高能物理 - 实验 · 物理学 2011-09-13 Patrick Koppenburg

The huge datasets collected at the two B factories, Belle and BaBar, have made it possible to explore the radiative penguin process b --> s gamma, the electroweak penguin process b --> s l+ l- and the suppressed radiative process b --> d…

高能物理 - 唯象学 · 物理学 2011-02-18 Tobias Hurth , Mikihiko Nakao

Radiative and electroweak penguin mediated decays of $B$ mesons are a great probe for physics beyond the Standard Model of particle physics. Furthermore, recently anomalies on exclusive $b \rightarrow s \ell^{+} \ell^{-}$ processes, which…

高能物理 - 实验 · 物理学 2022-09-21 Yo Sato

$B$-meson decays involving radiative and electroweak penguin processes are sensitive probes to new physics beyond the standard model. The Belle experiment recently reported measurements of the inclusive radiative decay $B \to X^{}_{s}…

高能物理 - 实验 · 物理学 2018-10-11 S. Sandilya

We search for the radiative penguin decays B_s to phi gamma and B_s to gamma gamma in a 23.6 fb-1 data sample collected at the Upsilon(5S) resonance with the Belle detector at the KEKB e+e- asymmetric-energy collider. We observe for the…

高能物理 - 实验 · 物理学 2008-11-26 Belle Collaboration , J. Wicht

We report recent results obtained with the Belle detector using a 23.6 fb^{-1} data sample collected on the Y(5S) resonance at the KEKB asymmetric energy e^+ e^- collider. Inclusive semileptonic B_s^0 -> X^+ l^- \nu decays are studied for…

高能物理 - 实验 · 物理学 2008-11-26 A. Drutskoy

Decays of $B$ mesons involving the transition of a $b$ quark into an $s$ quark are good probes of physics beyond the standard model. Such decays are studied at the Belle II experiment, a detector located along the SuperKEKB…

高能物理 - 实验 · 物理学 2023-05-18 Cyrille Praz

We report on the results of penguin-mediated B decays at the Belle experiment. The analyses were based on approximately 32 million $B\bar{B}$ events collected at the $\Upsilon(4S)$ resonance with the Belle detector at the KEKB $e^+e^-$…

高能物理 - 实验 · 物理学 2007-05-23 Akimasa Ishikawa

We present prospects for the Belle II experiment to further elucidate the KM mechanism and beyond. Recent measurements of the CKM parameter, and the radiative and electroweak penguin decays are also reported.

高能物理 - 实验 · 物理学 2024-01-17 Nanae Taniguchi

The Belle and Belle II experiments have collected a 1.3 ab$^{-1}$ sample of $e^+e^-\to B\bar B$ collisions at $\Upsilon(4S)$ centre-of-mass energy. This is ideal environment to search for rare electroweak penguin $B$ decays and notably…

高能物理 - 实验 · 物理学 2026-04-21 Valerio Bertacchi
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