Search
Now showing items 21-30 of 32
Observation of a vector charmoniumlike state in e(+)e(-) -> D-s(+) D-s1 (2536)(-) + c.c.
(American Physical Society, 2019-12-31)
Using a data sample of 921.9 fb(-1) collected with the Belle detector, we study the process of e(+)e(-)-> Ds+Ds1(2536)(-) + c.c. via initial-state radiation. We report the first observation of a vector charmoniumlike state ...
Measurement of R ( D ) and R ( D ∗ ) with a Semileptonic Tagging Method
(American Physical Society, 2020-04-24)
The experimental results on the ratios of branching fractions R(D) = B((B) over bar -> D tau(-)(nu) over bar (tau))/B((B) over bar -> Dl(-)(nu) over bar (e)) and R(D*) = B((B) over bar -> D*tau(-)(nu) over bar (tau))/B((B) ...
Measurements of the branching fractions B(B- -> (Lambda)over-bar(c)(-)Xi'(0)(c)), B(B- -> (Lambda)over-bar(c)(-)Xi(c )(2645)(0)) and B(B- -> (Lambda)over-bar(c)(-)Xi(c)(2790)(0))
(American Chemical Society, 2019-12-30)
Using the data sample of 711 fb(-1) of Upsilon(4S) on-resonance data taken by the Belle detector at the KEKB asymmetric-energy electron-positron collider, we present the first measurements of branching fractions of the ...
Observation of the Radiative Decays of Upsilon(1S) to chi(c1)
(American Physical Society, 2020-03-26)
We report the first observation of the radiative decay of the Upsilon(1S) into a charmonium state. The significance of the observed signal of Upsilon(1S) -> gamma chi(c1) is 6.3 standard deviations including systematics. ...
Update of inclusive cross sections of single and pairs of identified light charged hadrons
(American Physical Society, 2020-05-13)
We report new measurements of the production cross sections of pairs of charged pions and kaons as a function of their fractional energies using various fractional-energy definitions. Two different fractional-energy ...
First search for the ηc2(1D) in B decays at Belle
(Springer, 2020-05-08)
The first dedicated search for the ηc2(1D) is carried out using the decays B+→ ηc2(1D)K+, B0 → ηc2(1D)K0S, B0→ ηc2(1D)π−K+, and B+→ ηc2(1D)π+K0S with ηc2(1D) → hcγ. No significant signal is found. For the ηc2(1D) mass range ...
Update of inclusive cross sections of single and pairs of identified light charged hadrons
(American Physical Society, 2020-05-13)
We report new measurements of the production cross sections of pairs of charged pions and kaons as a function of their fractional energies using various fractional-energy definitions. Two different fractional-energy ...
Study of Electromagnetic Decays of Orbitally Excited Xi(C) Baryons
(American Physical Society, 2020-10-26)
Using 980 fb(-1) of data collected with the Belle detector operating at the KEKB asymmetric-energy e(+) e(-) collider, we report a study of the electromagnetic decays of excited charmed baryons Xi(c)(2790) and Xi(c)(2815). ...
Dalitz analysis of D0 → K− π+ η decays at Belle
(American Physical Society, 2020-07-06)
[EN] We present the results of the first Dalitz plot analysis of the decay D0 → K−πþη. The analysis is
performed on a data set corresponding to an integrated luminosity of 953 fb−1 collected by the Belle
detector at the ...
Search for B0 decays to invisible final states ( + γ) at Belle
(American Physical Society, 2020-07-08)
We report searches for B0→invisible and B0→invisible+γ decays, where the energy of the photon is required to be larger than 0.5 GeV. These results are obtained from a 711 fb−1 data sample that contains 772×106B¯B pairs ...