Yazar "The BESIII collaboration" için listeleme
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Amplitude analysis of the ? 0 ? 0 system produced in radiative J=? decays
The BESIII collaboration; Kolcu, Onur Buğra (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 ... -
Confirmation of a charged charmoniumlike state Zc (3885)? in e+e- ??± (D D ¯ ?)? with double D tag
The BESIII collaboration; Kolcu, Onur Buğra (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 ... -
An improved limit for ?ee of X(3872) and ?ee measurement of ?(3686)
The BESIII collaboration; Kolcu, Onur Buğra (Elsevier, 2015)Using the data sets taken at center-of-mass energies above 4 GeV by the BESIII detector at the BEPCII storage ring, we search for the reaction e+e-??ISRX(3872)??ISR?+?-J/? via the Initial State Radiation technique. The ... -
Measurement of B(psi(3770) -> gamma chi(c1)) and search for psi(3770) -> gamma chi(c2)
The BESIII collaboration; Kolcu, Onur Buğra (American Physical Society, 2015)We report a measurement of the branching fraction for ?(3770)???c1 and search for the transition ?(3770)???c2 based on 2.92 fb-1 of e+e- data accumulated at s=3.773 GeV with the BESIII detector at the BEPCII collider. We ... -
Measurement of Singly Cabibbo Suppressed Decays ?c+ ?p?+?- and ?c+ ?pK+K-
The BESIII collaboration; Kolcu, Onur Buğra (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 ... -
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
The BESIII collaboration; Kolcu, Onur Buğra (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 the form factors in the decay D+ ??e+?e and search for the decay D+ ??e+?e
The BESIII collaboration; Kolcu, Onur Buğra (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. ... -
Measurement of the matrix elements for the decays eta -> pi(+)pi(-)pi(0) and eta/eta ' -> pi(0)pi(0)pi(0)
The BESIII collaboration; Kolcu, Onur Buğra (American Physical Society, 2015)Based on a sample of 1.31×109 J/? events collected with the BESIII detector at the BEPCII collider, Dalitz plot analyses of selected 79,625 ???+?-?0 events, 33,908 ???0?0?0 events, and 1,888 ????0?0?0 events are performed. ... -
Measurement of the proton form factor by studying e+e- ?p p ¯
The BESIII collaboration; Kolcu, Onur Buğra (American Physical Society, 2015)Using data samples collected with the BESIII detector at the BEPCII collider, we measure the Born cross section of e+e-?pp¯ at 12 center-of-mass energies from 2232.4 to 3671.0 MeV. The corresponding effective electromagnetic ... -
Measurement of yCP in D0-D0 oscillation using quantum correlations in e+e- ? D0D0 at ?s = 3.773 GeV
The BESIII collaboration; Kolcu, Onur Buğra (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 ... -
Measurements of ? (3686) ?k- ? ? ¯ ++ c. c. and ? (3686) ??K- ? ? ¯ ++ c. c.
The BESIII collaboration; Kolcu, Onur Buğra (American Physical Society, 2015)Using a sample of 1.06×108?(3686) events produced in e+e- collisions at s=3.686 GeV and collected with the BESIII detector at the BEPCII collider, we present studies of the decays ?(3686)?K-??¯++c.c. and ?(3686)??K-??¯++c.c.. ... -
Measurements of cross section of e+e??pp¯?0 at center-of-mass energies between 4.008 and 4.600 GeV
The BESIII collaboration; Kolcu, Onur Buğra (Elsevier B.V., 2017)Based on e+e? annihilation data samples collected with the BESIII detector at the BEPCII collider at 13 center-of-mass energies from 4.008 to 4.600 GeV, measurements of the Born cross section of e+e??pp¯?0 are performed. ... -
Observation and spin-parity determination of the X(1835) in J/? ? ?K0SK0S?
The BESIII collaboration; Kolcu, Onur Buğra (American Physical Society, 2015)We report an observation of the process J/? ? ?X(1835) ? ?K0SK0S? at low K0SK0S mass with a statistical significance larger than 12.9? using a data sample of 1.31 × 109 J/? events collected with the BESIII detector. In ... -
Observation of e(+)e(-) -> pi(+) pi(-)psi(3770) and D-1(2420)(0)(D)over-bar(0) + c.c
The BESIII collaboration; Kolcu, Onur Buğra (American Physical Society, 2019)Several intermediate states of the reaction channels e+e-??+?-D0D?0 and e+e-??+?-D+D- are studied using the data samples collected with the BESIII detector at center-of-mass energies above 4.08 GeV. For the first time in ... -
Observation of e+e- ? ?+?- hc and a Neutral Charmoniumlike Structure Zc(4020)0
The BESIII collaboration; Kolcu, Onur Buğra (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 ... -
Observation of eta ' -> omega e(+)e(-)
The BESIII collaboration; Kolcu, Onur Buğra (American Physical Society, 2015)Based on a sample of ?? mesons produced in the radiative decay J/????? in 1.31×109 J/? events collected with the BESIII detector, the decay ????e+e- is observed for the first time, with a statistical significance of 8?. ... -
Observation of pseudoscalar and tensor resonances in J/psi -> gamma phi phi
The BESIII collaboration; Kolcu, Onur Buğra (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. ... -
Observation of psi(3686) -> p(p)over-bar phi
The BESIII collaboration; Kolcu, Onur Buğra (American Physical Society, 2019)Using a data sample of 4.48×108 ?(3686) events collected with the BESIII detector, we present a first observation of ?(3686)?pp ?, and we measure its branching fraction to be [6.06±0.38(stat)±0.48(syst)]×10-6. In contrast ... -
Observation of the dalitz decay ?’??e+e?
The BESIII collaboration; Kolcu, Onur Buğra (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 ... -
Observation of the Decay X (3872) ??0?c1 (1P)
The BESIII collaboration; Kolcu, Onur Buğra (American Physical Society, 2019)Using a total of 9.0 fb-1 of e+e- collision data with center-of-mass energies between 4.15 and 4.30 GeV collected by the BESIII detector, we search for the processes e+e-??X(3872) with X(3872)??0?cJ for J=0, 1, 2. We report ...
