Results 1 to 10 of about 1,692,769 (205)

Rare Decays [PDF]

open access: yesEPJ Web of Conferences, 2013
This review presents recent results on key measurements of rare B and τ decays performed at the LHC and the TeVatron. Its main focus lies on recent measurements of the decay B(s)0 → µ+µ− at the two colliders and of angular observables for the decay B0 ...
Elsasser Christian
doaj   +5 more sources

Theory of rare K decays [PDF]

open access: yesEPJ Web of Conferences, 2018
I review rare kaon decays. I introduce the flavor problem and possible solutions. Very rare kaon decays like K → πvv¯ are very important to this purpose: we study also K → πl+l-, K → ππee where chiral dynamics is important to disentangle short distance ...
D’Ambrosio Giancarlo
doaj   +5 more sources

Rare kaon decays [PDF]

open access: yesAIP Conference Proceedings, 2000
8 pages, submitted to the proceedings of the 3rd International Symposium on Symmetries in Subatomic Physics, Adelaide, Australia, 13-17 March ...
L. Littenberg, G. Valencia
  +10 more sources

Rare Decays in CMS

open access: yesParticles
The CMS experiment at the LHC has advanced precision measurements of rare B-meson and charm decays, offering insights into phenomena beyond the Standard Model (SM).
Giacomo Fedi
doaj   +2 more sources

B → D 0 ∗ $$ B\to {D}_0^{\ast } $$ and B s → D s 0 ∗ $$ {B}_s\to {D}_{s0}^{\ast } $$ form factors from QCD light-cone sum rules

open access: yesJournal of High Energy Physics, 2023
We present the first application of QCD light-cone sum rules (LCSRs) with B (s)-meson distribution amplitudes to the B s → D s 0 ∗ $$ {B}_{(s)}\to {D}_{(s)0}^{\ast } $$ form factors, where D s 0 ∗ $$ {D}_{(s)0}^{\ast } $$ is a charmed scalar meson.
Nico Gubernari   +3 more
doaj   +1 more source

Search for the rare decays and at LHCb

open access: yesChinese Physics C, 2023
Abstract A search for the rare decays and is performed using proton-proton collision data collected by the LHCb experiment at a centre-of-mass energy of 13
LHCb Collaboration   +422 more
openaire   +3 more sources

B → D1(2420) and B → D 1 ′ $$ {\mathrm{D}}_1^{\prime } $$ (2430) form factors from QCD light-cone sum rules

open access: yesJournal of High Energy Physics, 2022
We perform the first calculation of form factors in the semileptonic decays B → D 1(2420)ℓν ℓ and B → D 1 ′ $$ {D}_1^{\prime } $$ (2430)ℓν ℓ using QCD light-cone sum rules (LCSRs) with B-meson distribution amplitudes. In this calculation the c-quark mass
Nico Gubernari   +3 more
doaj   +1 more source

RARE b DECAYS [PDF]

open access: yesInternational Journal of Modern Physics A, 1995
Rare b decays provide a unique opportunity to measure Standard Model parameters and probe beyond the Standard Model. We review here the experimental progress made in measuring these decays, and the importance of future measurements, including the possible observation of CP violation.
Playfer, Stephen, Stone, Sheldon
openaire   +3 more sources

Light-cone sum rules for S-wave B → Kπ form factors

open access: yesJournal of High Energy Physics, 2023
We derive a set of light-cone sum rules relating the S-wave B → Kπ hadronic form factors to the B-meson light-cone distribution amplitudes (LCDAs), taking into account the complete set of LCDAs up to and including twist four. These results complement the
Sébastien Descotes-Genon   +3 more
doaj   +1 more source

Dispersive analysis of Λ b → Λ(1520) local form factors

open access: yesJournal of High Energy Physics, 2023
We perform an analysis of Λ b → Λ(1520) local form factors. We use dispersive techniques to provide a model-independent parametrisation of the form factors that can be used in the whole kinematic region.
Yasmine Amhis   +2 more
doaj   +1 more source

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