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Annihilation-Type Semileptonic B-Meson Decays

EPJ Web of Conferences, 2017
The rare semileptonic decay B0 → ϕℓ+ℓ−, where ℓ is an electron or muon, is considered in the QCD Factorization approach. The differential branching fraction, partially integrated over the interval q2 = [1 GeV2, 8 GeV2] of dilepton invariant mass squared,
Kuznetsova Anna, Parkhomenko Alexander
doaj +1 more source

Branching fraction measurement of the Λ → p μ − ν ¯ μ $$ \Lambda \to p{\mu}^{-}{\overline{\nu}}_{\mu } $$ decay

Journal of High Energy Physics
A measurement of the branching fraction for the decay Λ → p μ − ν ¯ μ $$ \Lambda \to p{\mu}^{-}{\overline{\nu}}_{\mu } $$ is presented using pp collision data collected by the LHCb experiment at a centre-of-mass energy of 13 TeV. The analysis is based on
The LHCb collaboration +1209 more
doaj +1 more source

Observation of the decay B s 0 → K 0 p p ¯ $$ {B}_s^0\to {K}^0p\overline{p} $$ and measurement of the B s 0 → K 0 p p ¯ $$ {B}_{(s)}^0\to {K}^0p\overline{p} $$ branching fractions

Journal of High Energy Physics
A study of the charmless baryonic decays B s 0 → K 0 p p ¯ $$ {B}_{(s)}^0\to {K}^0p\overline{p} $$ is presented, where B s 0 $$ {B}_{(s)}^0 $$ denotes either a B 0 or a B s 0 $$ {B}_s^0 $$ meson.
The LHCb collaboration +1152 more
doaj +1 more source

Observation of ψ(3686) → Ξ − K S 0 Ω ¯ + $$ {\Xi}^{-}{K}_S^0{\overline{\varOmega}}^{+} $$ + c.c.

Journal of High Energy Physics
Using a sample of (2.712 ± 0.014) × 109 ψ(3686) events collected with the BESIII detector at the electron positron collider BEPCII, the decay ψ(3686) → Ξ − K S 0 Ω ¯ + $$ {\Xi}^{-}{K}_S^0{\overline{\varOmega}}^{+} $$ + c.c. is observed for the first time,
The BESIII collaboration +704 more
doaj +1 more source

Observation of χ cJ J = 0 1 2 → p p ¯ ηη $$ {\chi}_{cJ}\left(J=0,1,2\right)\to p\overline{p}\eta \eta $$

Journal of High Energy Physics
Using (2712.4 ± 14.3) × 106 ψ(3686) candidates collected by the BESIII detector operating at the BEPCII storage ring, the decays χ cJ J = 0 1 2 → p p ¯ ηη $$ {\chi}_{cJ}\left(J=0,1,2\right)\to p\overline{p}\eta \eta $$ are observed for the first time ...
The BESIII collaboration +702 more
doaj +1 more source

Potential of discovering Ξcc+ in Λb decays

Physics Letters B
We propose to search for Ξcc+ in the decay Λb→Ξcc+D−, which serves as a tagged and reconstructible source of Ξcc+. A possible fully charged final state is [(pK−K−π+)Ξc0π+]Ξcc+(K+π−π−)D−, where the subscripts indicate the parent hadron in the decay chain.
Chao-Qiang Geng +4 more
doaj +1 more source

Measurement of the B 0 → ρ(770)0 γ branching fraction

Journal of High Energy Physics
The ratio between the branching fractions of the B 0 → ρ(770)0 γ and B 0 → K *(892)0 γ decays is measured with proton-proton collision data collected by the LHCb experiment at centre-of-mass energies of 7, 8, and 13 TeV, corresponding to an integrated ...
The LHCb collaboration +1183 more
doaj +1 more source

Improved limit on the branching fraction of the rare decay K S 0 → μ + μ - . [PDF]

Eur Phys J C Part Fields, 2017
Aaij R +771 more
europepmc +1 more source

Measurement of the branching fraction of D + → τ + ν τ

Journal of High Energy Physics
By analyzing e + e − collision data with an integrated luminosity of 7.9 fb −1 collected with the BESIII detector at the center-of-mass energy of 3.773 GeV, the branching fraction of D + → τ + ν τ is determined as B $$ \mathcal{B} $$ = (9.9 ± 1.1stat ± 0.
The BESIII collaboration +671 more
doaj +1 more source

SCET sum rules for Λ b → Λℓ + ℓ − , Λγ decays

Journal of High Energy Physics
We construct light-cone sum rules for various types of effective form factors in the Λ b → Λℓ + ℓ − and Λ b → Λγ decays by analyzing vacuum-to-Λ b (or γ *-to-Λ b ) correlation functions with the light Λ-baryon interpolating current.
Long-Shun Lu +3 more
doaj +1 more source

e +-e − experiments
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hadron-hadron scattering
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quarkonium
cms
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