Results 81 to 90 of about 2,767,400 (208)

Study of B^0 -> rho^0 rho^0 decays, implications for the CKM angle phi_2 and search for other B^0 decay modes with a four-pion final state

open access: yes, 2014
We present a study of the branching fraction of the decay B^0->rho0rho0 and the fraction of longitudinally polarized rho0 mesons in this decay. The results are obtained from the final data sample containing 772 million BBbar pairs collected at the Y(4S ...
Adachi, I.   +173 more
core   +1 more source

Measurements of the branching fractions of $${\Xi }_{c}^{+}\to {\Sigma }^{+}{K}_{S}^{0}$$ , $${\Xi }_{c}^{+}\to {\Xi }^{0}{\pi }^{+}$$ , and $${\Xi }_{c}^{+}\to {\Xi }^{0}{K}+$$ at Belle and Belle II

open access: yesJournal of High Energy Physics
Using 983.0 fb −1 and 427.9 fb −1 data samples collected with the Belle and Belle II detectors at the KEKB and SuperKEKB asymmetric energy e + e − colliders, respectively, we present studies of the Cabibbo-favored $${\Xi }_{c}^{+}$$ decays $${\Xi }_{c}^{+
The Belle the Belle II collaboration   +360 more
doaj   +1 more source

Observation of the B + → Jψη′K + decay

open access: yesJournal of High Energy Physics, 2023
The B + → Jψη′K + decay is observed for the first time using proton-proton collision data collected by the LHCb experiment at centre-of-mass energies of 7, 8, and 13 TeV, corresponding to a total integrated luminosity of 9 fb −1.
The LHCb collaboration   +1063 more
doaj   +1 more source

Study of Exclusive B decays to Charmed Baryons

open access: yes, 2002
Using 29.1fb-1 of data accumulated at the Upsilon(4S) with the Belle detector at KEKB, we have studied the decay modes B0bar->Lambda_c+ pbar pi+pi-, B- -> Lambda_c+ pbar pi-, and B0bar ->Lambda_c+ pbar. We report branching fractions of exclusive B decays
Abe, K.   +187 more
core   +1 more source

Measurement of the Inclusive Semi-electronic $D^0$ Branching Fraction [PDF]

open access: yes, 1995
Using the angular correlation between the $\pi^+$ emitted in a $D^{*+} \rightarrow D^0 \pi^+$ decay and the $e^+$ emitted in the subsequent $D^0 \rightarrow Xe^+\nu$ decay, we have measured the branching fraction for the inclusive semi-electronic decay ...
A. Bean   +238 more
core   +2 more sources

Observation of chi_c2 Production in B-meson Decay

open access: yes, 2002
We report the first observation of chi_c2 production in B-meson decays. We find an inclusive B -> chi_c2 X branching fraction of (1.80^{+0.23}_{-0.28}+/- 0.26) 10^-3.
Abe, K.   +215 more
core   +1 more source

Measurement of the branching fraction of J/ψ → ρπ at KEDR

open access: yesJournal of High Energy Physics, 2023
We present the study of the decay J/ψ → ρπ. The results are based on of 5.2 million J/ψ events collected by the KEDR detector at the VEPP-4M collider.
The KEDR collaboration   +94 more
doaj   +1 more source

Evidence for $B^0 \to \chi_{c1} \pi ^0$ at Belle

open access: yes, 2008
We present a measurement of the branching fraction for the Cabibbo- and color-suppressed $B^0 \to \chi_{c1}\pi^0$ decay based on a data sample of $657\times 10^6$ $B\bar B$ events collected at the $\Upsilon(4S)$ resonance with the Belle detector at the ...
Adachi, I.   +129 more
core   +1 more source

Study of the production of $\Lambda_b^0$ and $\overline{B}^0$ hadrons in $pp$ collisions and first measurement of the $\Lambda_b^0\rightarrow J/\psi pK^-$ branching fraction

open access: yes, 2015
The product of the $\Lambda_b^0$ ($\overline{B}^0$) differential production cross-section and the branching fraction of the decay $\Lambda_b^0\rightarrow J/\psi pK^-$ ($\overline{B}^0\rightarrow J/\psi\overline{K}^*(892)^0$) is measured as a function of ...
R. Aaij   +98 more
semanticscholar   +1 more source

Search for dark photons in Higgs boson production via vector boson fusion in proton-proton collisions at s $$ \sqrt{s} $$ = 13 TeV

open access: yesJournal of High Energy Physics, 2021
A search is presented for a Higgs boson that is produced via vector boson fusion and that decays to an undetected particle and an isolated photon.
The CMS collaboration   +2353 more
doaj   +1 more source

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