Results 51 to 60 of about 1,692,769 (205)
High-pT LHC constraints on SMEFT operators affecting rare kaon and hyperon decays
Journal of High Energy PhysicsWe consider the constraints on new physics affecting rare kaon and hyperon decay as parametrized by a low energy effective theory that can be obtained from high-pT observables at LHC. To this end, we match the relevant low energy Wilson coefficients onto
Arnab Roy, German Valencia
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More synergies from beauty, top, Z and Drell-Yan measurements in SMEFT
Journal of High Energy Physics, 2023 We perform a global analysis of Beauty, Top, Z and Drell-Yan measurements in the framework of the Standard Model effective theory (SMEFT). We work within the minimal flavor violation (MFV) hypothesis, which relates different sectors and generations ...
Cornelius Grunwald +3 more
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Journal of High Energy PhysicsWe analyze the impact of higher-twist three-particle B s -meson light-cone distribution amplitudes (LCDAs) on the non-local form factors for the B s → ϕ ℓ ¯ ℓ $$ {B}_s\to \phi \overline{\ell}\ell $$ transition focusing on the ‘charm-loop’ contribution ...
M. S. A. Alam Khan +3 more
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Scholarpedia, 2016 Rare decays of b hadrons provide a powerful way of identifying contributions from physics beyond the Standard Model, in particular from new hypothetical particles too heavy to be produced at colliders. The most relevant experimental measurements are reviewed and possible interpretations are briefly discussed.
Patrick Koppenburg +2 more
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Journal of High Energy PhysicsWe present theoretical predictions for observables in inclusive B ¯ → X s ℓ + ℓ − $$ \overline{B}\to {X}_s{\ell}^{+}{\ell}^{-} $$ suitable for measurements at hadron colliders through a sum-over-exclusive approach.
Tobias Huber +5 more
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Developing Methodology for the Creation of Clinical Practice Guidelines for Rare Diseases : A Report from RARE-Bestpractices [PDF]
, 2015 Date of Acceptance: 29/05/2015 The research leading to these results has received funding from the (FP7/2007–2013), under grant agreement n 305690 (RARE-Bestpractices project). The opinions, presented here reflect only the authors’ views.
RARE-Bestpractices Consortium
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Nonlocal form factor of chromomagnetic penguin in B → Kℓ + ℓ − from QCD light-cone sum rules
Journal of High Energy PhysicsThe branching fraction of the B → Kℓ + ℓ − decay has been measured recently by the LHC experiments, showing a deviation from theory predictions based on the Standard Model (SM).
T. Hurth +5 more
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Naturally astrophobic QCD axion
Journal of High Energy Physics, 2023 We present a QCD axion model where the couplings of the axion to nucleons, electrons, and muons are naturally suppressed because of the appropriate choice of the Peccei-Quinn charges of the Standard Model fermions.
Marcin Badziak, Keisuke Harigaya
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Rare kaon decays on the lattice
Physics Letters B, 2006 We show that long distance contributions to the rare decays K -> pi nu nu-bar and K -> pi l+ l- can be computed using lattice QCD. The proposed approach requires well established methods, successfully applied in the calculations of electromagnetic and semileptonic form factors.
Gino Isidori +2 more
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Rare and Semi-Rare Decays in ATLAS [PDF]
Proceedings of European Physical Society Conference on High Energy Physics — PoS(EPS-HEP2019), 2020 Flavour-changing neutral-current (FCNC) processes like $b \to s\,\mu^+\mu^-$ and $B_{(s)}^0 \to \mu^+\mu^-$ are suppressed in the Standard Model (SM) and thus sensitive to New Physics (NP) effects. This contribution summarises ATLAS results from the angular analysis of the $B^0 \to K^* \mu^+\mu^-$ decay performed with LHC Run 1 data, the $\cal B(B_{(s)}
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