Ara
Toplam kayıt 154, listelenen: 81-90
Search for the X (2370) and observation of eta(c) -> eta eta eta ' in J/psi -> gamma eta eta eta '
(Amer Physical Soc., 2021)
Using a sample of 1.31 x 10(9) J/psi events collected with the BESIII detector, we perform a study of J/psi -> gamma eta eta eta' to search for the X(2370) and eta(c) in the eta eta eta' invariant mass distribution. No ...
Study of the decays D+-> eta(('))e(+)nu(e)
(Amer Physic Soc., 2018-05-31)
The charm semileptonic decays D+ -> eta e(+)nu(e) and D+ -> eta'e(+)nu(e) are studied with a sample of e(+)e(-) collision data corresponding to an integrated luminosity of 2.93 fb(-1) collected at root s = 3.773 GeV with ...
Sigma(+) and (Sigma)over-bar(-) Polarization in the J/psi and psi(3686) Decays
(Amer Physical Soc., 2020)
From 1310.6 x 10(6) J/psi and 448.1 x 10(6) psi (3686) events collected with the BESIII experiment, we report the first observation of Sigma(+) and (Sigma) over bar (-) spin polarization in e(+)e(-) -> J/psi[psi(3686)] -> ...
Measurement of J/psi -> Xi(1530+)(-) (Xi)over-bar(+) and evidence for the radiative decay Xi(153)(-) -> gamma Xi(-)
(Amer Physical Soc., 2020)
The SU(3)-flavor violating decay J/psi -> Xi(1530)(-) (Xi) over bar (+) + c.c. is studied using (1310.6 +/- 7.0) x 10(6) J/psi events collected with the BESIII detector at BEPCII, and the branching fraction is measured to ...
Search for the decay J/psi -> gamma plus invisible
(Amer Physical Soc., 2020)
We search for J/psi radiative decays into a weakly interacting neutral particle, namely an invisible particle, using the J/psi produced through the process psi(3686) -> pi(+)pi(-) J/psi in a data sample of (448.1 +/- 2.9) ...
Search for heavy Majorana neutrino in lepton number violating decays of D -> K pi e(+)e(+)
(Amer Physic Soc., 2019)
Using a data sample with an integrated luminosity of 2.93 fb(-1) taken at the center-of-mass energy of 3.773 GeV, we search for the Majorana neutrino (nu(m)) in the lepton number violating decays D -> K pi e(+)e(+). No ...
Search for intermediate resonances and dark gauge bosons in J/psi -> gamma pi(0)eta '
(Amer Physical Soc., 2020)
We report on an analysis of the decay J/psi -> gamma pi(0)eta' using a sample of o1310.6 +/- 7.0THORN x 10(6) J/psi events collected with the BESIII detector. We search for the CP-violating process eta c -> pi(0)eta' and ...
Study of e(+)e(-) -> D+D-pi(+)pi(-) at center-of-mass energies from 4.36 to 4.60 GeV
(Elsevier, 2020)
We report a study of the e(+)e(-) -> D+D-pi(+)pi(-) process using e(+)e(-) collision data samples with an integrated luminosity of 2.5 fb(-1) at center-of-mass energies from 4.36 to 4.60 GeV, collected with the BESIII ...
Study of the D-0 -> K-mu(+)nu(mu) Dynamics and Test of Lepton Flavor Universality with D-0 -> K(-)l(+)nu(l) Decays
(Amer Physical Soc., 2019)
Using e(+)e(-) annihilation data of 2.93 fb(-1) collected at center-of-mass energy root s = 3.773 GeV with the BESIII detector, we measure the absolute branching fraction of D-0 -> K-mu(+)nu(mu) with significantly improved ...
Measurement of Cross Section for e(+)e(-) -> Xi(0)(Xi)over-bar(0) Near Threshol
(Elsevier, 2021)
Using e(+)e(-) collision data at ten center-of-mass energies between 2.644 and 3.080 GeV collected with the BESIII detector at BEPCII and corresponding to an integrated luminosity of about 500 pb(-1), we measure the cross ...