Yazar "Kolcu, Onur Buğra" için listeleme
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Cross section measurements of e(+) e(-) -> omega chi(c0) from root s=4.178 to 4.278 GeV
Kolcu, Onur Buğra (Amer Physic Soc., 2019-05-16)The cross section of the process e(+)e(-) -> omega chi(C0) is measured at center -of -mass energies from root s = 4.178 to 4.278 GeV using a data sample of 7 fb(-1) collected with the BESIII detector operating at the BEPCII ... -
Cross Sections for the Reactions e(+)e(-) -> K+ K- pi(+)pi(-) (x0), K+K-K+K- (pi(0)), pi(+)pi(-)pi(+)pi(-) (x(0)), pp over bar pi(+)pi(-) (pi(0)) in the Energy Region Between 3.773 and 4.600 GeV
Kolcu, Onur Buğra; BESIII Collaboration (Amer Physical Soc., 2021)Using the data samples collected in the energy range from 3.773 to 4.600 GeV with the BESIII detector at the BEPCII collider, we measure the dressed cross sections as a function of center-of-mass energy for e(+)e(-) -> ... -
Dalitz plot analysis of the decay omega -> pi(+) pi(-) pi(0)
Kolcu, Onur Buğra (Amer Physical Soc., 2018)Using a low-background sample of 2.6 x 10(5) J/psi -> omega eta(omega -> pi(+) pi(-) pi(0), eta -> gamma gamma) events, about 5 times larger statistics than previous experiments, we present a Dalitz plot analysis of the ... -
Dark photon search in the mass range between 1.5 and 3.4 GeV/c
Kolcu, Onur Buğra (Elsevier Science, 2017)Using a data set of 2.93 fb taken at a center-of-mass energy root s = 3.773 GeV with the BESIII detector at the BEPCII collider, we perform a search for an extra U(1) gauge boson, also denoted as a dark photon. We examine ... -
Determination of Strong-Phase Parameters in D -> K-S,L(0)pi(+)pi(-)
Kolcu, Onur Buğra; BESIII Collaboration (Amer Physical Soc., 2020)We report the most precise measurements to date of the strong-phase parameters between D-0 and (D) over bar (0) decays to K-S,L(0)pi(+)pi(-) using a sample of 2.93 fb(-1) of e(+) e(-) annihilation data collected at a ... -
Determination of the Absolute Branching Fractions of D-0 -> K(-)e(+)nu(e) and D+ -> (K)over-bar(0)e(+)nu(e)
Kolcu, Onur Buğra; BESIII Collaboration (Amer Physical Soc., 2021)Using 2.93 fb(-1) of e(+)e(-) collision data collected with the BESIII detector at a center-of-mass energy of 3.773 GeV, we measure the absolute branching fractions of the decays D-0 -> K(-)e(+)nu(e) and D+ -> (K) over bar ... -
Determination of the Lambda(c)+ spin via the reaction e(+)e(-) -> Lambda(c)(Lambda)over-bar(c)
Kolcu, Onur Buğra; BESIII Collaboration (Amer Physical Soc., 2021)We report on a comparison of two possible Lambda(+)(c) spin hypotheses, J = 1/2 and 3/2, via the process e(+)e(-) -> Lambda(c)(Lambda) over bar (c) using the angular distributions of Lambda(+)(c) decays into pK(S)(0), ... -
Determination of the number of J/psi events with inclusive J/psi decays
Kolcu, Onur Buğra (Chinese Physical, 2017)A measurement of the number of J/psi events collected with the BESIII detector in 2009 and 2012 is performed using inclusive decays of the J/psi. The number of J/psi events taken in 2009 is recalculated to be (223.7 +/- ... -
Determination of the number of psi(3686) events at BESIII
Kolcu, Onur Buğra (Science Press, 2018)The numbers of psi(3686) events accumulated by the BESIII detector for the data taken during 2009 and 2012 are determined to be (107.0 +/- 0.8)x10(6) and (341.1 +/- 2.1)x10(6), respectively, by counting inclusive hadronic ... -
Determination of the Pseudoscalar Decay Constant f(Ds)(+) via D-s(+) -> mu(+)nu(mu)
Kolcu, Onur Buğra (Amer Physic Soc., 2019)Using a 3.19 fb(-1) data sample collected at an e(+)e(-) center-of-mass energy of E-cm = 4.178 GeV with the BESIII detector, we measure the branching fraction of the leptonic decay D-s(+) -> mu(+)nu(mu) to be BDs+ -> mu+nu ... -
Determination of the Spin and Parity of the Z(c)(3900)
Kolcu, Onur Buğra (Amer Physic Soc., 2017)The spin and parity of the Z(c)(3900)(+/-) state are determined to be J(P) = 1(+) with a statistical significance larger than 7 sigma over other quantum numbers in a partial wave analysis of the process e(+)e(-) -> pi(+)pi(-) ... -
Direct Measurement of the Branching Fractions B(psi(3686) -> J/psi X) and B(psi(3770) -> J/psi X), and Observation of the State R(3760) in e(+)e(-) -> J/psi X
Kolcu, Onur Buğra; BESIII Collaboration (Amer Physical Soc., 2021)We report a measurement of the observed cross sections of e(+)e(-) -> J/psi X based on 3.21 fb(-1) of data accumulated at energies from 3.645 to 3.891 GeV with the BESIII detector operated at the BEPCII collider. In analysis ... -
Evidence for e(+)e(-) -> gamma eta(c)(1S) at center-of-mass energies between 4.01 and 4.60 GeV
Kolcu, Onur Buğra (Amer Physical Soc., 2017)We present first evidence for the process e(+)e(-) -> gamma eta(c)(1S) at six center-of-mass energies between 4.01 and 4.60 GeV using data collected by the BESIII experiment operating at BEPCII. We measure the Born cross ... -
Evidence for e(+)e(-)->gamma chi c1,2 at center-of-mass energies from 4.009 to 4.360 GeV
Kolcu, Onur Buğra; BESIII (IOP PUBLISHING LTD, 2015)Using data samples collected at center-of-mass energies of root s=4.009, 4.230, 4.260, and 4.360 GeV with the BESIII detector operating at the BEPCII collider, we perform a search for the process e(+)e(-)->gamma chi(cJ) ... -
Evidence for the decays of Lambda(+)(C) -> Sigma(+) eta and Sigma(+) eta '
Kolcu, Onur Buğra; BES III Collaboration (IOP PUBLISHING LTD, 2019)We study the hadronic decays of Lambda(+)(C) to the final states Sigma(+) eta and Sigma(+) eta', using an e(+) e(-) annihilation data sample of 567 pb(-1) taken at a center-of-mass energy of 4.6 GeV with the BESIII detector ... -
Evidence for the singly Cabibbo suppressed decay Lambda(+)(c) -> p eta and search for Lambda(+)(c) -> p pi(0)
Kolcu, Onur Buğra (Amer Physical Soc., 2017)We study the singly Cabibbo suppressed decays Lambda(+)(c) -> p eta and Lambda(+)(c) -> p pi(0) using Lambda(+)(c)(Lambda) over bar (-)(c) pairs produced by e(+)e(-) collisions at a center-of-mass energy of root s = 4.6 ... -
Evidence of a Resonant Structure in the e(+) e(-) -> pi(+) (DD)-D-0*(-) Cross Section between 4.05 and 4.60 GeV
Kolcu, Onur Buğra (Amer Physic Soc., 2019)The cross section of the process e(+) e(-) -> pi(+) (DD)-D-0*(-) for center-of-mass energies from 4.05 to 4.60 GeV is measured precisely using data samples collected with the BESIII detector operating at the BEPCII storage ... -
Evidence of Two Resonant Structures in e(+)e(-)->pi(+) pi(-) h(c)
Kolcu, Onur Buğra (Amer Physic Soc., 2017)The cross sections of e(+)e(-) -> pi(+) pi(-) hc at center-of-mass energies from 3.896 to 4.600 GeVare measured using data samples collected with the BESIII detector operating at the Beijing Electron Positron Collider. The ... -
First measurement of e(+)e(-) -> pK(S)(0)(n)over-barK(-) + c.c. above open charm threshold
Kolcu, Onur Buğra (Amer Physical Soc., 2018)The process e(+)e(-) -> pK(S)(0)(n) over barK(-) + c.c. and its intermediate processes are studied for the first time, using data samples collected with the BESIII detector at BEPCII at center-of-mass energies of 3.773, ... -
First Measurement of Polarizations in the Decay D-0 -> omega phi
Kolcu, Onur Buğra; BESIII Collaboration (Amer Physical Soc., 2022)Using a data sample corresponding to an integrated luminosity of 2.93 fb(-1) collected at a center-of-mass energy root s = 3.773 GeV by the BESIII detector, the decay D-0 -> omega phi is observed for the first time. The ...