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Now showing items 21-29 of 29
Observation of τ−→π−ντe+e− and search for τ−→π−ντμ+μ−
(American Physical Society, 2019)
We present the first measurements of branching fractions of rare tau-lepton decays, tau(-) -> pi(-)nu(tau)l(+)l(-) (l = e or mu), using a data sample corresponding to 562 fb(-1) collected at a center-of-mass energy of 10.58 ...
Transverse momentum dependent production cross sections of charged pions, kaons and protons produced in inclusive e(+)e(-) annihilation at root s=10.58 GeV
(American Physical Society, 2019-06-14)
We report measurements of the production cross sections of charged pions, kaons, and protons as a function of fractional energy, the event-shape variable called thrust, and the transverse momentum with respect to the thrust ...
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 ...
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 ...
Transverse target single-spin asymmetry in inclusive electroproduction of charged pions and kaons
(Elsevier, 2014-01-20)
Single-spin asymmetries were investigated in inclusive electroproduction of charged pions and kaons from transversely polarized protons at the HERMES experiment. The asymmetries were studied as a function of the azimuthal ...
Monte Carlo methods for TMD analyses
(EDP Sciences, 2015)
Monte Carlo simulations are an indispensable tool in experimental high-energy physics. Indeed, many discoveries rely on realistic modeling of background processes. In the field of transverse-momentum-dependent parton ...
Measurement of the Tau Michel Parameters (Eta)Over-Bar and Xi Kappa in the Radiative Leptonic Decay Tau(-) -> L(-)Nu(Tau)(Nu)Over-Bar(L)Gamma
(Oxford University Press, 2018-02)
We present a measurement of the Michel parameters of the tau lepton, (eta) over bar and xi kappa, in the radiative leptonic decay tau(-) -> l(-)nu(tau)(nu) over bar (l)gamma using 711 fb(-1) of collision data collected ...
Search for B- -> mu(-)(nu)over-bar(mu) Decays at the Belle Experiment
(Amer Physical SOC, 2018-07-18)
We report the results of a search for the rare, purely leptonic decay B- -> mu(-)(nu) over bar (mu) performed with a 711 fb(-1) data sample that contains 772 x 10(6) B (B) over bar pairs, collected near the Upsilon(4S) ...
Observation of Υ(4S) → η1 Υ (1S)
(American Physical Society, 2018-08-06)
We report the first observation of the hadronic transition Upsilon(4S) -> eta'Upsilon(1S), using 496 fb(-1) data collected at the Upsilon(4S) resonance with the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider. ...