Ara
Toplam kayıt 37, listelenen: 21-30
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 ...
Measurement of the form factors in the decay D+ ??e+?e and search for the decay D+ ??e+?e
(American Physical Society, 2015)
Using 2.92 fb-1 of electron-positron annihilation data collected at a center-of-mass energy of s=3.773 GeV with the BESIII detector, we present an improved measurement of the branching fraction B(D+??e+?e)=(1.63±0.11±0.08)×10-3. ...
Amplitude analysis of the ? 0 ? 0 system produced in radiative J=? decays
(American Physical Society, 2015)
An amplitude analysis of the ? 0 ? 0 system produced in radiative J=? decays is presented. In particular, a piecewise function that describes the dynamics of the ? 0 ? 0 system is determined as a function ofM? 0 ? 0 from ...
Search for Z(c)(3900)(+/-) -> omega pi(+/-)
(American Physical Society, 2015)
The decay Zc(3900)±???± is searched for using data samples collected with the BESIII detector operating at the BEPCII storage ring at center-of-mass energies s=4.23 and 4.26 GeV. No significant signal for the Zc(3900)± is ...
Precision measurement of the integrated luminosity of the data taken by BESIII at center-of-mass energies between 3.810 GeV and 4.600 GeV
(Institute of Physics Publishing, 2015)
From December 2011 to May 2014, about 5 fb-1 of data were taken with the BESIII detector at center-of-mass energies between 3.810 GeV and 4.600 GeV to study the charmonium-like states and higher excited charmonium states. ...
Measurement of the e+e- ??J /? cross section and search for e+e- ??0J /? at center-of-mass energies between 3.810 and 4.600 GeV
(American Physical Society, 2015)
Using data samples collected with the BESIII detector operating at the BEPCII collider at 17 center-of-mass energies from 3.810 to 4.600 GeV, we perform a study of e+e-??J/? and ?0J/?. The Born cross sections of these two ...
Measurement of yCP in D0-D0 oscillation using quantum correlations in e+e- ? D0D0 at ?s = 3.773 GeV
(Elsevier B.V., 2015)
We report a measurement of the parameter yCP in D0-D-0 oscillations performed by taking advantage of quantum coherence between pairs of D0D-0 mesons produced in e+e- annihilations near threshold. In this work, doubly-tagged ...
Confirmation of a charged charmoniumlike state Zc (3885)? in e+e- ??± (D D ¯ ?)? with double D tag
(American Physical Society, 2015)
We present a study of the process e+e-??±(DD¯?)? using data samples of 1092 pb-1 at s=4.23 GeV and 826 pb-1 at s=4.26 GeV collected with the BESIII detector at the BEPCII storage ring. With full reconstruction of the D ...
Conference report: The symposium of sudden cardiac arrest survival
(AVES Ibrahim Kara, 2015)
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Observation of the dalitz decay ?’??e+e?
(American Physical Society, 2015)
We report the first observation of the Dalitz decay ?’??e+e?, based on a data sample of 1.31 billion J/? events collected with the BESIII detector. The ?’ mesons are produced via the J/????’ decay process. The ratio ...