ORCID "0000-0002-9177-1286" Araştırma Çıktıları | TR-Dizin | WoS | Scopus | PubMed için listeleme
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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 eta(c) -> omega omega in J/psi -> gamma omega omega
BESIII Collaboration; Kolcu, Onur Bugra (AMER PHYSICAL SOC, 2019)Using a sample of (1310.6 +/- 7.0) x 10(6) J/psi events recorded with the Beijing Spectrometer III detector at the Beijing Electron Positron Collider II, we report the observation of the decay of the (1(1)S(0)) charmonium ... -
Observation of J/Psi Electromagnetic Dalitz Decays to X(1835), X(2120), and X(2370)
Ablikim, M.; Achasov M.N.; Adlarson P.; Ahmed S.; Albrecht M.; Kolcu, O. B. (American Physical Society, 2022)Using a sample of about 1010 J/ψ events collected at a center-of-mass energy s=3.097 GeV with the BESIII detector, the electromagnetic Dalitz decays J/ψ→e+e-π+π-η′, with η′→γπ+π- and η′→π+π-η, have been studied. The decay ... -
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) -> 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 psi(3886) -> Xi(1530)(-)(Xi)over-bar(1530)(+) and Xi(1530)(-)(Xi)over-bar(+)
BESIII Collaboration; Kolcu, Onur Bugra (AMER PHYSICAL SOC, 2019)Using 448.1 x 10(6) psi(3686) events collected with the BESIII detector at BEPCII, we employ a single-baryon tagging technique to make the first observation of psi(3686) -> Xi(1530)(-)(Xi) over bar (1530)(+) and Xi(1530)(-)(Xi) ... -
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 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 ... -
Observation of the decays chi(cJ) -> Sigma(0)(p)over-barK(+) + c.c. (J=0,1,2)
Kolcu, Onur Buğra; BESIII Collaboration (Amer Physical Soc., 2020)The decays chi(cJ) -> Sigma(0)(p) over barK(+) + c.c. (J = 0,1,2) are studied via the radiative transition psi(3686) ->gamma chi(cJ) based on a data sample of (448.1 +/- 2.9) x 10(6) psi(3686) events collected with the ... -
Observation of the double Dalitz decay eta' -> e(+)e(-)e(+)e(-)
Ablikim M.; Achasov M.N.; Adlarson P.; Albrecht M.; Aliberti R.; Kolcu, O. B. (Observation of the double Dalitz decay η′ →e+e-e+e-, 2022)Based on (10087±44)×106 J/ψ events collected with the BESIII detector at BEPCII, the double Dalitz decay η′→e+e-e+e-is observed for the first time via the J/ψ→γη′ decay process. The significance is found to be 5.7σ with ... -
Observation of the Doubly Cabibbo-Suppressed Decay D+ -> K+ pi(+) pi(-) pi(0) and Evidence for D+ -> K+ omega
Kolcu, Onur Buğra; BESIII Collaboration (Amer Physical Soc., 2020)Using 2.93 fb(-1) of e(+)e(-) collision data collected at a center-of-mass energy of 3.773 GeV with the BESIII detector, the first observation of the doubly Cabibbo-suppressed decay D+-> K+pi(+)pi(-)pi(0) is reported. After ... -
Observation of the Leptonic Decay D+ →τ+ντ
BESIII Collaboration; Kolcu, O. B. (American Physical Society, 2019)We report the first observation of D+→τ+ντ with a significance of 5.1σ. We measure B(D+→τ+ντ)=(1.20±0.24stat±0.12syst)×10-3. Taking the world average B(D+→μ+νμ)=(3.74±0.17)×10-4, we obtain Rτ/μ=Γ(D+→τ+ντ)/Γ(D+→μ+νμ)=3.21 ... -
Observation of the Semileptonic D+ Decay into the K 1 (1270)0 Axial-Vector Meson
BESIII Collaboration; Kolcu, Onur Buğra (American Physical Society, 2019)By analyzing a 2.93 fb-1 data sample of e+e- collisions, recorded at a center-of-mass energy of 3.773 GeV with the BESIII detector operated at the BEPCII collider, we report the first observation of the semileptonic D+ ... -
Observation of the semimuonic decay D+ -> omega mu(+)upsilon(mu)
BESIII Collaboration; Kolcu, Onur Buğra (Amer Physical Soc., 2020)We report the first observation of the semimuonic decay D+ -> omega mu(+)upsilon(mu) using an e(+)e(-) collision data sample corresponding to an integrated luminosity of 2.93 fb(-1) collected with the BESIII detector at a ... -
Observation of the Y(4220) and Y(4390) in the process e(+)e(-) -> eta J/psi
Kolcu, Onur Buğra (Amer Physical Soc., 2020)The cross sections of the process e(+)e(-) -> eta J/psi lip at center-of-mass energies (root s) between 3.81 and 4.60 GeV are measured with high precision by using data samples collected with the BESIII detector operating ... -
Observation of the Y(4230) and a new structure in e(+)e(-) -> K+ K- J/psi
Ablikim, M; Achasov, MN; Adlarson, P.; Albrecht, M.; Kolcu, Onur Buğra (IOP Publishing Ltd, 2022)The cross sections of e(+)e(-) -> K+K- J/psi at center-of-mass energies from 4.127 to 4.600 GeV are measured based on 15.6 fb(-1) data collected with the BESIII detector operating at the BEPCII storage ring. Two resonant ... -
Observation of X(2370) and search for X(2120) in J/ ψ→ γKK¯ η′ : BESIII Collaboration
Kolcu, Onur Buğra; BESIII Collaboration (Springer, 2020)Using a sample of 1.31x109<mml:mspace width="3.33333pt"></mml:mspace>J/psi events collected with the BESIII detector, we perform a study of J/psi -> gamma KK<overbar></mml:mover>eta '. X(2370) is observed in the ... -
Observation of ψ (3686) →n n ̄ and improved measurement of ψ (3686) →p p ̄
Kolcu, Onur Buğra (Amer Physic Soc., 2019)We observe the process psi(3686) -> p (p) over bar eta' for the first time, with a statistical significance higher than 10 sigma, and measure the branching fraction of J/psi -> p (p) over bar eta' with an improved accuracy ...