Ara
Toplam kayıt 87, listelenen: 21-30
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 ...
Study of J/psi and psi(3686) decays to pi(+) pi(-) eta '
(Amer Physic Soc., 2017)
Using the data samples of 1.31 x 10(9) J/psi events and 4.48 x 10(8) psi(3686) events collected with the BESIII detector, partial wave analyses on the decays J/psi and psi(3686) pthornp -> pi(+)pi(-)eta' are performed with ...
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. ...
Study of eta(1475) and X(1835) in radiative J/psi decays to gamma phi
(Amer Physical Soc., 2018)
The decay J/psi -> gamma gamma phi is studied using a sample of 1.31 x 10(9) J/psi events collected with the BESIII detector. Two structures around 1475 MeV/c(2) and 1835 MeV/c(2) are observed in the gamma phi invariant ...
Observation of the Singly Cabibbo-Suppressed Decay D + › ? ? + and Evidence for D 0 › ? ? 0
(APS Physics, 2016)
Based on 2.93 fb-1 e +e - collision data taken at center-of-mass energy of 3.773 GeV by the BESIII detector, we report searches for the singly Cabibbo-suppressed decays D + › ??+ and D 0 › ??0 . A double tag technique is ...
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 ...
Measurement of the branching fraction for ?(3770) › ??c0
(Elsevier, 2016)
By analyzing a data set of 2.92fb-1 of e+e- collision data taken at s=3.773GeV and 106.41×106 ?(3686) decays taken at s=3.686GeV with the BESIII detector at the BEPCII collider, we measure the branching fraction and the ...
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 ...