Ara
Toplam kayıt 32, listelenen: 11-20
Study of ?cJ decaying into K? (892) K ¯
(American Physical Society, 2015)
Using a data sample of 106 million ?(3686) events collected with the BESIII detector operated at the BEPCII storage ring, we study for the first time the decays ?cJ??KS0K±?? and ?cJ??K+K-?0 in the E1 radiative transition ...
Measurement of Singly Cabibbo Suppressed Decays ?c+ ?p?+?- and ?c+ ?pK+K-
(American Physical Society, 2016)
Using 567 pb-1 of data collected with the BESIII detector at a center-of-mass energy of s=4.599 GeV, near the ?c+?c- threshold, we study the singly Cabibbo-suppressed decays ?c+?p?+?- and ?c+?pK+K-. By normalizing with ...
Observation of the electromagnetic doubly OZI-suppressed decay J /? ???0
(American Physical Society, 2015)
Using a sample of 1.31 billion J/? events accumulated with the BESIII detector at the BEPCII collider, we report the observation of the decay J/????0, which is the first evidence for a doubly Okubo-Zweig-Iizuka suppressed ...
Search for the y (4140) via e+e- ???J /? at s =4.23, 4.26 and 4.36 GeV
(American Physical Society, 2015)
Using data samples collected at center-of-mass energies s=4.23, 4.26, and 4.36 GeV with the BESIII detector operating at the BEPCII storage ring, we search for the production of the charmoniumlike state Y(4140) through a ...
Precision measurement of the D?0 decay branching fractions
(American Physical Society, 2015)
Using 482 pb-1 of data taken at s=4.009 GeV, we measure the branching fractions of the decays of D?0 into D0?0 and D0? to be B(D?0?D0?0)=(65.5±0.8±0.5)% and B(D?0?D0?)=(34.5±0.8±0.5)%, respectively, by assuming that the ...
Observation of Z(c)(3900)(0) in e(+)e(-) -> pi(0)pi(0) J/Psi
(American Physical Society, 2015)
Using a data sample collected with the BESIII detector operating at the BEPCII storage ring, we observe a new neutral state Zc(39000)0 with a significance of 10.4?. The mass and width are measured to be 3894.8 ± 2.3 ± 3.2 ...
Observation of pseudoscalar and tensor resonances in J/psi -> gamma phi phi
(American Physical Society, 2016)
Based on a sample of (1310.6±10.5)×106 J/? events collected with the BESIII detector operating at the BEPCII storage ring, a partial wave analysis of the decay J/????? is performed in order to study the intermediate states. ...
Search for the weak decays J/? ? D(?)- s e+?e + c.c
(American Physical Society, 2014)
Using a sample of 2.25 × 108 J/? events collected with the BESIII detector at the BEPCII collider, we search for the J/? semileptonic weak decay J/? ? D-s e+?e+ c.c. with a much higher sensitivity than previous searches. ...
Precise Measurement of the e+e- ??+?-J /? Cross Section at Center-of-Mass Energies from 3.77 to 4.60 GeV
(American Physical Society, 2017)
The cross section for the process e+e-??+?-J/? is measured precisely at center-of-mass energies from 3.77 to 4.60 GeV using 9 fb-1 of data collected with the BESIII detector operating at the BEPCII storage ring. Two resonant ...
Observation of e+e- ? ?+?- hc and a Neutral Charmoniumlike Structure Zc(4020)0
(American Physical Society, 2014)
Using data collected with the BESIII detector operating at the Beijing Electron Positron Collider at center-of-mass energies of ?s = 4.23, 4.26, and 4.36 GeV, we observe e+e- ? ?+?-hc for the first time. The Born cross ...