Results 31 to 40 of about 1,692,769 (205)

Renormalisation group analysis of scalar Leptoquark couplings addressing flavour anomalies: emergence of lepton-flavour universality

open access: yesJournal of High Energy Physics, 2023
Leptoquarks with masses between 2 TeV and 50 TeV are commonly invoked to explain deviations between data and Standard-Model (SM) predictions of several observables in the decays b → cτ ν ¯ $$ b\to c\tau \overline{\nu} $$ and b → sℓ + ℓ − with ℓ = e, μ ...
Marco Fedele   +2 more
doaj   +1 more source

First observation of the decays B0 -> D+K-π+π- and B- -> D0K-π+π- [PDF]

open access: yes, 2012
First observations of the Cabibbo-suppressed decays B0→D+K-π+π- and B-→D0K-π+π- are reported using 35pb -1 of data collected with the LHCb detector. Their branching fractions are measured with respect to the corresponding Cabibbo-favored decays, from ...
Harrison, P. F.   +17 more
core   +1 more source

Dispersive analysis of B → K (*) and B s → ϕ form factors

open access: yesJournal of High Energy Physics, 2023
We propose a stronger formulation of the dispersive (or unitarity) bounds à la Boyd-Grinstein-Lebed (BGL), which are commonly applied in analyses of the hadronic form factors for B decays.
Nico Gubernari   +3 more
doaj   +1 more source

Flavor physics in the quark sector [PDF]

open access: yes, 2008
In the past decade, one of the major challenges of particle physics has been to gain an in-depth understanding of the role of quark flavor. In this time frame, measurements and the theoretical interpretation of their results have advanced tremendously. A
Smith, Christopher   +999 more
core   +1 more source

On the impact of meson mixing on B s → ϕee angular observables at low q 2

open access: yesJournal of High Energy Physics, 2023
Decays based on the b → sγ transition are expected to yield left-handed photons in the Standard Model, but could be particularly sensitive to New Physics contributions modifying the short-distance Wilson coefficients C $$ \mathcal{C} $$ 7 and C ...
Sébastien Descotes-Genon   +2 more
doaj   +1 more source

Branching fraction and CP asymmetry of the decays B+→K0Sπ+ and B+→K0SK+ [PDF]

open access: yes, 2013
An analysis of B+ → K0 Sπ+ and B+ → K0 S K+ decays is performed with the LHCb experiment. The pp collision data used correspond to integrated luminosities of 1 fb−1 and 2 fb−1 collected at centre-ofmass energies of √ s = 7 TeV and √ s = 8 TeV ...
Hennessy K.   +999 more
core   +1 more source

A search for flavour changing neutral currents in top-quark decays in pp collision data collected with the ATLAS detector at √s=7 TeV [PDF]

open access: yes, 2012
Contains fulltext : 103521.pdf (Publisher’s version ) (Open ...
G. Khoriauli   +999 more
core   +3 more sources

Rare b decays meet high-mass Drell-Yan

open access: yesJournal of High Energy Physics, 2023
Rare b hadron decays are considered excellent probes of new semileptonic four-fermion interactions of microscopic origin. However, the same interactions also correct the high-mass Drell-Yan tails.
Admir Greljo   +3 more
doaj   +1 more source

FCNC charmed-hadron decays with invisible singlet particles in light of recent data

open access: yesJournal of High Energy Physics, 2023
The flavor-changing neutral current (FCNC) decays of charmed hadrons with missing energy (Ɇ) can serve as potentially promising hunting grounds for hints of new physics, as the standard-model backgrounds are very suppressed.
Geng Li, Jusak Tandean
doaj   +1 more source

Rare Muon Decays

open access: yesActa Physica Polonica B, 2013
In this paper, we present a short review of searches for charged lepton flavour violation on the example of rare muon decays. We discuss the evaluation of electron spectrum for muon decay in orbit which is a background process for conversion experiments.
openaire   +3 more sources

Home - About - Disclaimer - Privacy