Kurum Yazarı "Kolcu, Onur Buğra" Meslek Yüksekokulları İçin Listeleme
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Observation of chi(c2) -> eta 'eta ' and chi(c0,2) -> eta eta '
Kolcu, Onur Buğra (Amer Physical Soc., 2017)Using a sample of 448.1 x 10(6) Psi(3686) events collected with the BESIII detector in 2009 and 2012, we study the decays chi(c0,2) -> eta 'eta ' and eta eta '. The decays chi(c2) -> eta 'eta ', chi(c0) -> eta eta ' and ... -
Observation of e +e - › ? 0? 0hc and a neutral charmoniumlike structure Zc(4020)0
Kolcu, Onur Buğra (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-›?0?0hc for the first time. The Born cross sections ... -
Observation of e(+)e(-) -> eta h(c) at center-of-mass energies from 4.085 to 4.600 GeV
Kolcu, Onur Buğra (Amer Physical Soc., 2017)We observe for the first time the process e(+) e(-) -> eta h(c) with data collected by the BESIII experiment. Significant signals are observed at the center-of-mass energy root s = 4.226 GeV, and the Born cross section is ... -
Observation of e(+)e(-) -> omega chi(c1,2) near root s=4.42 and 4.6 GeV
Kolcu, Onur Buğra (2016)BEPC-BES. Based on data samples collected with the BESIII detector operating at the BEPCII storage ring at center-of-mass energies s?>s> 4.4 GeV, the processes e+e-›??c1,2e+e-›??c1,2 are observed for the first time. With ... -
Observation of e(+)e(-) -> phi chi(c1) and phi chi(c2) at root s=4.600 GeV
Kolcu, Onur Buğra (Amer Physical Soc., 2018)Using a data sample collected with the BESIII detector operating at the BEPCII storage ring at a center-of-mass energy of root s = 4.600 GeV, we search for the production of e(+)e(-) -> phi chi(c0,1,2). A search is also ... -
Observation of hc radiative decay hc › ??' and evidence for hc › ??
Kolcu, Onur Buğra (2016)A search for radiative decays of the P-wave spin singlet charmonium resonance hc is performed based on 4.48 × 108 ? events collected with the BESIII detector operating at the BEPCII storage ring. Events of the reaction ... -
Observation of Lambda(+)(c) -> nK(S)(0)pi(+)
Kolcu, Onur Buğra (Amer Physic Soc., 2017)We report the first direct measurement of decays of the Lambda(+)(c) baryon involving the neutron. The analysis is performed using 567 pb(-1) of e(+)e(-) collision data collected at root s = 4.599 GeV with the BESIII ... -
Observation of psi(3686) -> e(+)e(-)chi(cJ) and chi(cJ) -> e(+)e(-)J/psi
Kolcu, Onur Buğra (Amer Physic Soc., 2017)Using 4.479 x 10(8) psi(3686) events collected with the BESIII detector, we search for the decays psi(3686) -> e(+)e(-)chi(cJ) and chi(cJ) -> e(+)e(-)J/psi, where J = 0, 1, 2. The decays psi(3686) -> e(+)e(-)chi(cJ) and ... -
Observation of the decay Lambda(+)(c) -> Sigma(-)pi(+)pi(+)pi(0)
Kolcu, Onur Buğra (Elsevier Science, 2017)We report the first observation of the decay Lambda(+)(c) -> Sigma(-)pi(+)pi(+)pi(0), based on data obtained in e(+)e(-) annihilations with an integrated luminosity of 567 pb(-1) at vs = 4.6 GeV. The data were collected ... -
Observation of the doubly radiative decay eta ' -> gamma gamma pi(0)
Kolcu, Onur Buğra (Amer Physical Soc., 2017)Based on a sample of 1.31 billion J/psi events collected with the BESIII detector, we report the study of the doubly radiative decay eta' -> gamma gamma pi(0) for the first time, where the eta' meson is produced via the ... -
Observation of the helicity-selection-rule suppressed decay of the chi(c2) charmonium state
Kolcu, Onur Buğra (Amer Physical Soc., 2017)The decays of chi(c2) -> K+K- pi(0), KSK +/-pi(-/+), and pi(+)pi(-)pi(0) are studied with the psi(3686) data samples collected with the Beijing Spectrometer ( BESIII). For the first time, the branching fractions of chi(c2) ... -
Observation of the Singly Cabibbo-Suppressed Decay D + › ? ? + and Evidence for D 0 › ? ? 0
Kolcu, Onur Buğra (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 ... -
Precision Measurement of the e(+)e(-) -> Lambda(+)(c)(Lambda)over-bar(c)(-) Cross Section Near Threshold
Kolcu, Onur Buğra (Amer Physical Soc., 2018)The cross section of the e(+)e(-) -> Lambda(+)(c)(Lambda) over bar (-)(c) process is measured with unprecedented precision using data collected with the BESIII detector at root s = 4574.5, 4580.0, 4590.0 and 4599.5 MeV. ... -
Search for a light CP-odd Higgs boson in radiative decays of J/psi
Kolcu, Onur Buğra (2016)We search for a light Higgs boson A0 in the fully reconstructed decay chain of J/?›?A0, A0›µ+µ- using (225.0±2.8)×106 J/? events collected by the BESIII experiment. The A0 is a hypothetical CP-odd light Higgs boson predicted ... -
Search for C-parity violation in J/? › ?? and ??
Kolcu, Onur Buğra (2014)Using 1.06×108 ?(3686) events recorded in e+e- collisions at s?=3.686??GeV with the BESIII at the BEPCII collider, we present searches for C-parity violation in J/?›?? and ?? decays via ?(3686)›J/??+?-. No significant ... -
Search for h(c) -> pi(+)pi(-) J/psi via psi(3686) -> pi(0)pi(+)pi(-) J/psi
Kolcu, Onur Buğra (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 psi(3686)-> gamma eta(c)(eta(1405)) -> gamma pi(+)pi(-)pi(0)
Kolcu, Onur Buğra (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 the radiative leptonic decay D+ -> gamma e (+) nu(e)
Kolcu, Onur Buğra (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 ... -
Search for the rare decay D+ -> D(0)e(+)nu(e)
Kolcu, Onur Buğra (Amer Physical Soc., 2017)Using a data set with an integrated luminosity of 2.93 fb(-1) collected at root s = 3.773 GeV with the BESIII detector operating at the BEPCII storage rings, we search for the rare decay D+ -> D(0)e(+)nu(e). No signal ...