Yazar "Kolcu, Onur Buğra" için Elektrik-Elektronik Mühendisliği Bölümü Makale Koleksiyonu listeleme
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Observation of a Resonant Structure in e(+)e(-)-> Omega Eta and Another in e(+)e(-)-> Omega pi(0) at center-of-mass Energies Between 2.00 and 3.08 GeV
Kolcu, Onur Buğra; BESIII Collaboration (Elsevier, 2021)Born cross sections for the processes e(+)e(-) -> omega eta and e(+)e(-) -> omega pi(0) have been determined for centerof-mass energies between 2.00 and 3.08GeVwith the BESIII detector at the BEPCII collider. The results ... -
Observation of a structure in e(+)e(-) -> phi eta ' at root s from 2.05 to 3.08 GeV
Kolcu, Onur Buğra; BESIII Collaboration (Amer Physical Soc., 2020)The process e(+)e(-) -> phi eta' has been studied for the first time in detail using data sample collected with the BESIII detector at the BEPCII collider at center of mass energies from 2.05 to 3.08 GeV. A resonance with ... -
Observation of a(0)(0)(980)-f(0)(980) Mixing
Kolcu, Onur Buğra (Amer Physical Soc., 2018)We report the first observation of a(0)(0)(980)-f(0)(980) mixing in the decays of J/psi -> phi f(0)(980) -> phi a(0)(0)(980) -> phi eta pi(0) and chi(c1) -> a(0)(0)(980)pi(0) -> f(0)(980)pi(0)->pi(+)pi(-)pi(0), using data ... -
Observation of chi(cJ) -> 4K(S)(0)
Kolcu, Onur Buğra (Amer Physic Soc., 2019)By analyzing (448.1 +/- 2.9) x 10(6) psi(3686) events collected with the BESIII detector operating at the BEPCII collider, the decays of chi(c)(J) -> 4K(S)(0) (J = 0, 1, 2) are observed for the first time with statistical ... -
Observation of D+ -> eta eta pi(+) and improved measurement of D0(+) -> eta pi+ pi-((0))
BESIII Collaboration; Kolcu, Onur Buğra (Amer Physical Soc., 2020)Using an e(+)e(-) annihilation data sample corresponding to an integrated luminosity of 2.93 fb(-1) collected at the center-of-mass energy of 3.773 GeV with the BESIII detector, we measure the absolute branching fractions ... -
Observation of D+ -> f(0) (500)e(+) nu(e) and Improved Measurements of D -> rho e(+) nu(e)
Kolcu, Onur Buğra (Amer Physic Soc., 2019)Using a data sample corresponding to an integrated luminosity of 2.93 fb(-1) recorded by the BESIII detector at a center-of-mass energy of 3.773 GeV, we present an analysis of the decays D-0 -> pi(-) pi(0) e(vertical bar) ... -
Observation of D-0 -> K-1 (1270) (-)e(+)nu(e)
Kolcu, Onur Buğra; BESIII Collaboration (Amer Physical Soc., 2021)Using 2.93 fb(-1) of e(+)e(-) collision data taken with the BESIII detector at a center-of-mass energy of 3.773 GeV, the observation of the D-0 -> K-1 (1270)(-)e(+)nu(e) semileptonic decay is presented. The statistical ... -
Observation of D-s(+) -> p(n)over-bar and confirmation of its large branching fraction
Kolcu, Onur Buğra (Amer Physic Soc., 2019)The baryonic decay D-s(+) -> p (n) over bar is observed, and the corresponding branching fraction is measured to be (1.21 +/- 0.10 +/- 0.05) x 10(-3), where the first uncertainty is statistical and second systematic. The ... -
Observation of D0(+) -> K-S(0)pi(0(+))eta ' and improved measurement of D-0 -> K-pi(+)eta '
Kolcu, Onur Buğra (Amer Physical Soc., 2018)By analyzing an e(+)e(-) data sample corresponding to an integrated luminosity of 2.93 fb(-1) taken at a centerof- mass energy of 3.773 GeV with the BESIII detector, we measure the branching fractions of the Cabibbofavored ... -
Observation of e(+) e(-) -> eta Y(2175) at center-of-mass energies above 3.7 GeV
Kolcu, Onur Buğra (Amer Physic Soc., 2019)The state Y(2175) is observed in the process e(+)e(-) -> eta Y(2175) with a statistical significance larger than 10 standard deviations using the data collected with the BESIII detector operating at the BEPCII storage ring ... -
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(-)-> D-s(+)(D)over-bar(()*()0) K- and study of the P-wave D-s mesons
Kolcu, Onur Buğra (IOP Publishing, 2019)Studies of e(+)e(-)-> D-s(+)(D) over bar (()*K-)0(-) and the p-wave charmed-strange mesons are performed based on an e(+)e(-) collision data sample corresponding to an integrated luminosity of 567 pb(-1) collected with the ... -
Observation of e(+)e(-)-> eta psi(2S) at Center-of-Mass Energies from 4.236 to 4.600 GeV
Kolcu, Onur Buğra; BESIII Collaboration (Springer, 2021)Using a total of 5.25 fb(-1) of e(+)e(-) collision data with center-of-mass energies from 4.236 to 4.600 GeV, we report the first observation of the process e(+)e(-)-> eta psi(2S) with a statistical significance of 4.9 ... -
Observation of eta ' -> pi(+)pi(-)mu(+)mu(-)
Kolcu, Onur Buğra; BESIII Collaboration (Amer Physical Soc., 2021)Using (1310.6 +/- 7.0) x 10(6) J/psi events acquired with the BESIII detector at the BEPCII storage rings, the decay eta' -> pi(+)pi(-)mu(+)mu(-) is observed for the first time with a significance of 8 sigma via the process ... -
Observation of OZI-suppressed decays chi(cJ) -> omega phi
Kolcu, Onur Buğra (Amer Physic Soc., 2019)Decays chi(cJ)(J = 0, 1, 2) -> omega phi are studied using (448.1 +/- 2.9) x 10(6)psi(3686) events collected with the BESIII detector in 2009 and 2012. In addition to the previously established chi(c0) -> omega phi, the ... -
Observation of psi(3686) -> eta ' e(+)e(-)
Kolcu, Onur Buğra (Elsevier Science Bv., 2018)Using a data sample of 448.1 x 10(6) psi(3686) events collected with the BESIII detector at the BEPCII collider, we report the first observation of the electromagnetic Dalitz decay psi(3686) -> eta'e(+)e(-), with significances ... -
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 Decay D0 →ρ-μ+νμ
BESIII Collaboration; Kolcu, Onur Buğra (American Physical Society, 2021)By analyzing an e+e- annihilation data sample corresponding to an integrated luminosity of 2.93 fb-1 collected at a center-of-mass energy of 3.773 GeV with the BESIII detector, we measure the branching fraction of the ... -
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 ... -
Observation of the decays chi(cJ) -> phi phi eta
BESIII Collaboration; Kolcu, Onur Buğra (Amer Physical Soc., 2020)Using a data sample of (448.1 +/- 2.9) x 10( )(6)psi(3686) decays collected by the BESIII detector at the Beijing Electron Positron Collider (BEPCII), we observe the decays chi(cJ) -> phi phi eta (J = 0, 1, 2), where the ...