Yazar "BESIII Collaboration" için Araştırma Çıktıları | TR-Dizin | WoS | Scopus | PubMed listeleme
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Search for the decay D-s(+) -> gamma e (+) nu(e)
Kolcu, Onur Buğra (Amer Physical Soc., 2019-04-09)A search for the rare radiative leptonic decay D-s(+) -> gamma e(+)nu(e) is performed for the first time using electron-positron collision data corresponding to an integrated luminosity of 3.19 fb(-1), collected with the ... -
Search for the decay D-s(+) -> p(p)over-bare(+) nu(e)
BESIII Collaboration; Kolcu, O. B. (American Physical Society, 2019)Using a 3.19 fb-1 data sample collected at the s=4.178 GeV with the BESIII detector, we search for the rare decay Ds+→ppe+νe. No significant signal is observed, and an upper limit of B(Ds+→ppe+νe)<2.0×10-4 is set at the ... -
Search for the decay eta ' -> gamma gamma eta
BESIII Collaboration; Kolcu, Onur Bugra (AMER PHYSICAL SOC, 2019)Using a data sample of 1.31 x 10(9) J/psi events collected with the BESIII detector, a search for eta' -> gamma gamma eta via J/psi ->gamma eta' is performed for the first time. No significant eta' signal is observed in ... -
Search for the decay J/psi -> gamma plus invisible
Kolcu, Onur Buğra; BESIII Collaboration (Amer Physical Soc., 2020)We search for J/psi radiative decays into a weakly interacting neutral particle, namely an invisible particle, using the J/psi produced through the process psi(3686) -> pi(+)pi(-) J/psi in a data sample of (448.1 +/- 2.9) ... -
Search for the Lepton Number Violating Decay Sigma(-) -> pe(-) e(-) and the Rare Inclusive Decay Sigma(-) -> Sigma(+) X
Kolcu, Onur Buğra; BESIII Collaboration (Amer Physical Soc., 2021)Using a data sample of (1310.6 +/- 7.0) x 10(6) J/psi events taken with the BESIII detector at the center-of-mass energy of 3.097 GeV, we search for the first time for the lepton number violating decay Sigma(-) -> pe(-) ... -
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 ... -
Search for the rare decay eta ' -> pi(0)pi(0)pi(0)pi(0) at BESIII
BESIII Collaboration; Kolcu, Onur Buğra (Amer Physical Soc., 2020)Using a sample of 1.31 x 10(9) J/psi events collected with the BESIII detector, we perform a search for the rare decay if eta' -> 4 pi(0) via J/psi -> gamma eta'. No significant eta' signal is observed in the 4 pi(0) ... -
Search for the rare decays J/psi -> D(0)e(+) e(-) + c.c. and psi(3686) -> D(0)e(+) e(-) + c.c.
Kolcu, Onur Buğra (Amer Physical Soc., 2017)Using the data samples of (1310.6 +/- 7.2) x 10(6) J/psi events and (448.1 +/- 2.9) x 10(6) psi(3686) events collected with the BESIII detector, we search for the rare decays J/psi -> D(0)e(+) e(-) + c.c. and psi(3686) -> ... -
Search for the Rare Semi-leptonic Decay J/psi -> D(-)e(+)nu(e) + c.c.
Kolcu, Onur Buğra; BESIII Collaboration (Springer, 2021)Using 10.1 x 10(9)J/ events produced by the Beijing Electron Positron Collider (BEPCII) at a center-of-mass energy s = 3.097 GeV and collected with the BESIII detector, we present a search for the rare semi-leptonic decay ... -
Search for the Reaction Channel E(+)E(-) -> Eta(C)Eta Pi(+)Pi(-) at center-of-mass energies from 4.23 to 4.60 GeV
Kolcu, Onur Buğra; BESIII Collaboration (Elsevier, 2021)Using data collected with the BESIII detector operating at the Beijing Electron Positron Collider, we search for the process e(+)e(-) -> eta(c)eta pi(+)pi(-). The search is performed using five large datasets recorded at ... -
Search for the reaction e(+) e(-) -> chi(cJ)pi(+)pi(-) and a Charmoniumlike Structure Decaying to chi(cJ)pi(+/-) between 4.18 and 4.60 GeV
Kolcu, Onur Buğra; BESIII Collaboration (Amer Physical Soc., 2021)We search for the process e(+)e(-) -> chi(cJ)pi(+) pi(-) (J = 0, 1, 2) and for a charged charmoniumlike state in the chi(cJ)pi +/- subsystem. The search uses datasets collected with the BESIII detector at the BEPCII storage ... -
Search for the semileptonic decay D0(+) -> b(1) (1235)(-(0))e(+)v(e)
Kolcu, Onur Buğra; BESIII Collaboration (Physical Review D., 2020)Using 2.93 fb-1 of e(+)e(-) data collected at a center-of-mass energy root s = 3.773 GeV with the BESIII detector operating at the BEPCII collider, we search for the semileptonic D0(+) decays into a b(1)(1235)(-(0)) ... -
Search for the X (2370) and observation of eta(c) -> eta eta eta ' in J/psi -> gamma eta eta eta '
Kolcu, Onur Buğra; BESIII Collaboration (Amer Physical Soc., 2021)Using a sample of 1.31 x 10(9) J/psi events collected with the BESIII detector, we perform a study of J/psi -> gamma eta eta eta' to search for the X(2370) and eta(c) in the eta eta eta' invariant mass distribution. No ... -
Searches for isospin-violating transitions χc0,2 → π0ηc
BESIII Collaboration; Kolcu, O. B. (American Physical Society, 2015)We present the first upper-limit measurement of the branching fractions of the isospin-violating transitions χc0,2 → π0ηc. The measurements are performed using 106×106ψ(3686) events accumulated with the BESIII detector at ... -
Sigma(+) and (Sigma)over-bar(-) Polarization in the J/psi and psi(3686) Decays
Kolcu, Onur Buğra; BESIII Collaboration (Amer Physical Soc., 2020)From 1310.6 x 10(6) J/psi and 448.1 x 10(6) psi (3686) events collected with the BESIII experiment, we report the first observation of Sigma(+) and (Sigma) over bar (-) spin polarization in e(+)e(-) -> J/psi[psi(3686)] -> ... -
Study of BESIII Trigger Efficiencies with the 2018 J/psi Data
Using a dedicated data sample taken in 2018 on the J/psi peak, we perform a detailed study of the trigger efficiencies of the BESIII detector. The efficiencies are determined from three representative physics processes, ... -
Study of e(+)e(-) -> 2(p(p)over-bar) at center-of-mass Energies Between 4.0 and 4.6 GeV
Kolcu, Onur Buğra; BESIII Collaboration (Amer Physical Soc., 2021)Using data taken at 23 center-of-mass energies between 4.0 and 4.6 GeV with the BESIII detector at the Beijing Electron Positron Collider and with a total integrated luminosity of approximately 15 fb(-1), the process ... -
Study of e(+)e(-) -> D+D-pi(+)pi(-) at center-of-mass energies from 4.36 to 4.60 GeV
Kolcu, Onur Buğra; BESIII Collaboration (Elsevier, 2020)We report a study of the e(+)e(-) -> D+D-pi(+)pi(-) process using e(+)e(-) collision data samples with an integrated luminosity of 2.5 fb(-1) at center-of-mass energies from 4.36 to 4.60 GeV, collected with the BESIII ... -
Study of e(+)e(-) -> gamma omega J/psi and Observation of X(3872) -> omega J/psi
Kolcu, Onur Buğra (Amer Physical Soc., 2019)We study the e(+)e(-) -> gamma omega J/psi process using 11.6 fb(-1) e(+)e(-) annihilation data taken at center-of-mass energies from root s = 4.008 GeV to 4.600 GeV with the BESIII detector at the BEPCII storage ring. The ...