BackSearch
Now showing items 1-10 of 30
Measurements of the Branching Fractions of Lambda(+)(c) -> p eta and Lambda(+)(c) -> p pi(0) Decays at Belle
(American Physical Society, 2021-04-14)
We report measurements of the branching fractions of singly Cabibbo-suppressed decays Lambda(+)(c) -> p eta and Lambda(+)(c) -> p pi(0) using the full Belle data sample corresponding to an integrated luminosity of 980.6 ...
Search for B-s(0) -> eta'Xs(s)over-bar at Belle using a semi-inclusive method
(American Physical Society, 2021-07-12)
We report the first search for the penguin-dominated process B-s(0) -> eta'X(s ()s() over bar) using a semi-inclusive method. A 121.4 fb-1 integrated luminosity gamma(5S) data set collected by the Belle experiment, at the ...
Test of Lepton Flavor Universality and Search for Lepton Flavor Violation in B -> Kll Decays
(Springer, 2021-03-10)
We present measurements of the branching fractions for the decays B -> K mu(+)mu(-) and B -> Ke(+)e(-), and their ratio (R-K), using a data sample of 711 fb(-1) that contains 772 x 10(6) B (B) over bar events. The data ...
Measurement of the energy dependence of the e(+) e(-) -> B(B)over-bar, B (B)over-bar* and B*(B)over-bar* exclusive cross sections
(Springer, 2021-06-23)
We report the first measurement of the exclusive cross sections e(+) e(-) -> B (B) over bar, e(+) e(-) -> B (B) over bar*, and e(+) e(-) -> B* (B) over bar* in the energy range from 10.63 GeV to 11.02 GeV. The B mesons are ...
Measurement of branching fractions and CP asymmetries for D-s(+) -> K+ (eta, pi(0)) and D-s(+) -> pi(+) (eta,pi(0)) decays at Belle
(American Physical Society, 2021-06-09)
We report measurements of the branching fractions and CP asymmetries for D-s(+) -> K+eta, D-s(+) -> K+ pi(0), and D-s(+) -> pi(+)eta decays, and the branching fraction for D-s(+) -> pi+pi(0). Our results are based on a ...
First determination of the spin and parity of the charmed-strange baryon Xi(c) (2970)(+)
(American Physical Society, 2021-06-16)
We report results from a study of the spin and parity of Xi(c)(2970)(+) using a 980 fb(-1) data sample collected by the Belle detector at the KEKB asymmetric-energy e(+) e(-) collider. The decay angle distributions in the ...
Measurement of the Charm-Mixing Parameter y(CP) in D-0 -> K-S(0)Omega Decays at Belle
(American Physical Society, 2020-10-19)
We report the first measurement of the charm-mixing parameter y(CP) in D-0 decays to the CP-odd final state K-S(0 omega). The study uses the full Belle e(+)e(-) annihilation data sample of 976 fb(-1) taken at or near the ...
Test of Lepton-Flavor Universality in BK^{*}ℓ^{+}ℓ^{-} Decays at Belle
(American Physical Society, 2021-04-22)
We present a measurement of RK , the branching fraction ratio BðB → K μþμ−Þ=BðB → K eþe−Þ, for
both charged and neutral B mesons. The ratio for the charged case RK þ is the first measurement ever
performed. In addition, ...
Evidence for X(3872)J/psipi^{+}pi^{-} Produced in Single-Tag Two-Photon Interactions
(American Physical Society, 2021-03-23)
We report the first evidence for X(3872) production in two-photon interactions by tagging either the electron or the positron in the final state, exploring the highly virtual photon region. The search is performed in ...
Measurement of the resonant and nonresonant branching ratios in Xi(0)(c) -> Xi K-0(+) K-
(American Physical Society, 2021-06-03)
Using the entire data sample of 980 fb(-1) integrated luminosity collected with the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider, we present an amplitude analysis measuring the branching fractions of the ...