Results 81 to 90 of about 1,692,769 (205)
Review of rare and forbidden τ decays [PDF]
This is a review of rare and forbidden decays of the $τ$ lepton. For the rare decays, this includes new results on the chiral anomaly decay $\taupietapio$, new upper limits on the second-class-current decay $\taupieta$, and the observations of the Cabibbo-suppressed decay $\tauketa$ and the internal conversion decay $\taueee$. For the forbidden decays,
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Higher twist corrections to doubly-charmed baryonic B decays
Baryonic two-body B mesons decays have been measured experimentally for some time, which provides an excellent ground for studying the QCD of baryonic B decays.
Zhou Rui, Zhi-Tian Zou, Ying Li
doaj +1 more source
A REVIEW OF RARE PION AND MUON DECAYS [PDF]
After a decade of no measurements of pion and muon rare decays, PIBETA, a new experimental program is producing its first results. We report on a new experimental study of the pion beta decay, π+→π0e+ν, the πe2γ radiative decay, π+→e+νγ, and muon radiative decay, [Formula: see text].
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With the large integrated luminosity collected and the high efficiency of its di-muon triggers, the CMS experiment is a privileged test bench for rare decays involving heavy flavors.
Kai-Feng Chen, Chen, Kai-Feng
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The long-term goal of NA62 is to measure the ultra rare K+/- -> pi+/- nu anti-nu decay with a sensitivity of 10^-12 per event. This is done by using the decay - in - flight technique which allows a signal acceptance of ~10% . The aim is to collect about 100 signal events in two years of data taking with a background to signal ratio smaller than 10%.
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Rare B Decay potential of SuperB [PDF]
The study of rare B-decays at SuperB provides unique opportunities to understand the Standard Model and constrain new physics. It is discussed the new physics potential of the B -> K nu nu_bar and B -> K^{\ast} nu nu_bar system from the proposed SuperB experiment with 75ab-1 of data (5 nominal years of data taking).
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The Standard Model prediction for the rare decay B → X s ν ν ¯ $$ B\to {X}_s\nu \overline{\nu} $$
We present updated and comprehensive Standard Model predictions for the inclusive rare decay B → X s ν ν ¯ $$ B\to {X}_s\nu \overline{\nu} $$ . Using a state-of-the-art determination of the short-distance coefficient, including NLO QCD and electroweak ...
Matteo Fael +3 more
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Rare decays are flavour changing neutral current processes that allow sensitive searches for phenomena beyond the Standard Model (SM). In the SM, rare decays are loop-suppressed and new particles in SM extensions can give significant contributions.
Puig Navarro, Albert
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Gluino-Mediated Rare B Decays [PDF]
We discuss the gluino-induced contribution to rare B decays in supersymmetric frameworks with generic sources of flavour change.We discuss the gluino-induced contribution to rare B decays in supersymmetric frameworks with generic sources of flavour ...
Hurth, Tobias, Tobias Hurth
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