Başlık için listeleme
Toplam kayıt 2982, listelenen: 2360-2379
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Search for C-parity violation in J/psi -> gamma gamma and gamma phi
(AMER PHYSICAL SOC, 2014)Using 1.06 x 10(8) psi(3686) events recorded in e(+)e(-) collisions at root s = 3.686 GeV with the BESIII at the BEPCII collider, we present searches for C-parity violation in J/psi -> gamma gamma and gamma phi decays via ... -
Search for D0 ??? and improved measurement of the branching fraction for D0 ??0?0
(American Physical Society, 2015)Using 2.92 fb-1 of electron-positron annihilation data collected at ?s = 3.773 GeV with the BESIII detector, we report the results of a search for the flavor-changing neutral current process D0 ??? using a double-tag ... -
Search for h(c) -> pi(+)pi(-) J/psi via psi(3686) -> pi(0)pi(+)pi(-) J/psi
(Amer Physical Soc., 2018)Using a data sample of 448.1 x 10(6) psi(3686) events collected with the BESIII detector operating at the BEPCII, we perform search for the hadronic transition h(c)-> pi(+)pi(-) J/psi via psi (3686) -> pi(0)hc. No signals ... -
Search for hc ??+?-J /? via ? (3686) ??0?+?-J /?
(American Physical Society, 2018)Using a data sample of 448.1×106 ?(3686) events collected with the BESIII detector operating at the BEPCII, we perform search for the hadronic transition hc??+?-J/? via ?(3686)??0hc. No signals of the transition are observed, ... -
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 ... -
Search for invisible decays of omega and phi with J/psi data at BESIII
(Amer Physical Soc., 2018)Using a data sample of (1310.6 +/- 7.0) x 10(6) J/psi events collected with the BESIII detector operating at the BEPCII collider, we perform the first experimental search for invisible decays of a light vector meson (V = ... -
Search for New Decay Modes of the psi(2)(3823) and the Process e(+)e(-) -> pi(0)pi(0)psi(2) (3823)
(Amer Physical Soc., 2021)The decays psi(2)(3823) -> gamma chi(c0,1,2), pi(+)pi(-) J/psi, pi 0 pi(0) J/psi, eta J/psi, and pi(0)J/psi are searched for using the reaction e(+)e(-) -> pi(+)pi(-)psi(2) (3823) in a 19 fb(-1) data sample collected at ... -
Search for new hadronic decays of h(c) and observation of h(c) -> K+K- pi(+)pi(-)pi(0)
(Amer Physical Soc., 2020)Ten hadronic final states of the h(c) decays are investigated via the process psi(3686) -> pi(0)h(c), using a data sample of (448.1 +/- 2.9) x 10(6) psi(3686) events collected with the BESIII detector. The decay channel ... -
Search for psi(3686)-> gamma eta(c)(eta(1405)) -> gamma pi(+)pi(-)pi(0)
(Amer Physical Soc., 2017)Using a sample of 448.1 x 10(6) psi(3686) events collected with the BESIII detector, a search for the isospin violating decay eta(c) -> pi(+) pi(-) pi(0) via psi(3686) -> gamma eta(c) is presented. No signal is observed, ... -
Search for rare decay J /? ??e+e-
(American Physical Society, 2019)Using a data sample of 448.1×106 ?(3686) events collected at s=3.686 GeV with the BESIII detector at the Beijing Electron-Positron Collider II, we search for the rare decay J/???e+e- via ?(3686)??+?-J/?. No signal events ... -
Search for the Charged Lepton Flavor Violating Decay J/psi -> e tau
(Amer Physical Soc., 2021)A search for the charged lepton flavor violating decay J/psi -> e(+/-)tau(-/+) with tau(-/+) -> pi(-/+)pi(0)nu(tau) is performed with about 10 x 10(9) J/psi events collected with the BESIII detector at the BEPCII. No ... -
Search for the Decay D-s(+) -> a(0)(980)(0)e(+)nu(e)
(Amer Physical Soc., 2021)Using 6.32 fb(-1) of electron-positron collision data recorded by the BESIII detector at center-of-mass energies between 4.178 and 4.226 GeV, we present the first search for the decay D-s(+) -> a(0)(980)(0)e(+)nu(e), ... -
Search for the decay D-s(+) -> gamma e (+) nu(e)
(Amer Physical Soc., 2019-04-09)A search for the rare radiative leptonic decay D-s(+) -> gamma e(+)nu(e) is performed for the first time using electron-positron collision data corresponding to an integrated luminosity of 3.19 fb(-1), collected with the ... -
Search for the decay D-s(+) -> p(p)over-bare(+) nu(e)
(American Physical Society, 2019)Using a 3.19 fb-1 data sample collected at the s=4.178 GeV with the BESIII detector, we search for the rare decay Ds+→ppe+νe. No significant signal is observed, and an upper limit of B(Ds+→ppe+νe)<2.0×10-4 is set at the ... -
Search for the decay eta ' -> gamma gamma eta
(AMER PHYSICAL SOC, 2019)Using a data sample of 1.31 x 10(9) J/psi events collected with the BESIII detector, a search for eta' -> gamma gamma eta via J/psi ->gamma eta' is performed for the first time. No significant eta' signal is observed in ... -
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 the isospin violating decay Y(4260)-> J/psi eta pi(0)
(American Physical Society, 2015)Using data samples collected at center-of-mass energies of ?s= 4.009, 4.226, 4.257, 4.358, 4.416, and 4.599 GeV with the BESIII detector operating at the BEPCII storage ring, we search for the isospin violating decay Y(4260) ... -
Search for the Lepton Number Violating Decay Sigma(-) -> pe(-) e(-) and the Rare Inclusive Decay Sigma(-) -> Sigma(+) X
(Amer Physical Soc., 2021)Using a data sample of (1310.6 +/- 7.0) x 10(6) J/psi events taken with the BESIII detector at the center-of-mass energy of 3.097 GeV, we search for the first time for the lepton number violating decay Sigma(-) -> pe(-) ... -
Search for the radiative leptonic decay D+ -> gamma e (+) nu(e)
(Amer Physical Soc., 2017)Using an electron-positron collision data sample of 2.93 fb(-1) collected at a center-of-mass energy of root s = 3.773 GeV with the BESIII detector, we present the first search for the radiative leptonic decay D+ -> gamma ...
