Yazar "BESIII Collaboration" için Fakülteler listeleme
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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 ... -
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 ... -
Study of e(+)e(-) -> pi X-0(3872)gamma and search for Z(c)(4020)(0) -> X(3872)gamma
Kolcu, Onur Buğra; BESIII Collaboration (Amer Physical Soc., 2021)Using data samples collected with the BESIII detector operating at the BEPCII storage ring at center-of- mass energies from 4.178 to 4.600 GeV, we study the process e(+)e(-) pi X-0(3872)gamma and search for Z(c)(4020)(0) ... -
Study of e+e- →π0X (3872)γ and Search for Zc (4020)0 →x (3872)γ
Kolcu, Onur Buğra; BESIII Collaboration (American Physical Society, 2021)Using data samples collected with the BESIII detector operating at the BEPCII storage ring at center-of-mass energies from 4.178 to 4.600 GeV, we study the process e+e-→π0X(3872)γ and search for Zc(4020)0→X(3872)γ. We find ... -
Study of electromagnetic Dalitz decays chi(cJ )-> mu(+)mu(-) J/psi
Kolcu, Onur Buğra (Amer Physic Soc., 2019)Using 4.48 x 10(8) psi(3686) events collected with the BESIII detector, we search for the decays chi(cJ) ->mu(+)mu(- )J/psi through the radiative decays psi(3686) -> gamma chi(cJ), where J = 0, 1, 2. The decays chi(c1,2) ... -
Study of Open-Charm Decays and Radiative Transitions of the X(3872)
Kolcu, Onur Buğra; BESIII Collaboration (Amer Physical Soc., 2020)The processes X(3872) -> D*(0)(D) over bar (0) + c.c., gamma J/psi, gamma psi(2S), and gamma D+D- are searched for in a 9.0 fb(-1) data sample collected at center-of-mass energies between 4.178 and 4.278 GeV with the BESIII ... -
Study of the Decay D-s(+) -> pi(+) pi(+) pi(-)eta and Observation of the W-annihilation Decay D-s(+) -> a(0)(980)(+)rho(0)
Kolcu, Onur Buğra; BESIII Collaboration (Amer Physical Soc., 2021)The decay D-s(+) -> pi(+) pi(+) pi(-)eta is observed for the first time, using e(+)e(-) collision data corresponding to an integrated luminosity of 6.32 fb(-1), collected by the BESIII detector at center-of-mass energies ... -
Study of the decays D+-> eta(('))e(+)nu(e)
Kolcu, Onur Buğra (Amer Physic Soc., 2018-05-31)The charm semileptonic decays D+ -> eta e(+)nu(e) and D+ -> eta'e(+)nu(e) are studied with a sample of e(+)e(-) collision data corresponding to an integrated luminosity of 2.93 fb(-1) collected at root s = 3.773 GeV with ... -
Study of the decays D-s(+ )-> (KSK+)-K-0 and (KLK+)-K-0
Kolcu, Onur Buğra (Amer Physical Soc., 2019)Using an e(+)e(-) annihilation data sample corresponding to an integrated luminosity of 3.19 fb(-1) and collected at a center-of-mass energy root s = 4.178 GeV with the BESIII detector, we measure the absolute branching ... -
Study of the h(c)(1(1)P(1)) meson via psi(2S) -> pi(0)h(c) decays at BESIII
BESIII Collaboration; Kolcu, O. B. (AMER PHYSICAL SOC, 2022)Using 448 million psi(2S) events, the spin-singlet P-wave charmonium state h(c)(1(1)P(1)) is studied via the psi(2S) -> pi(0)h(c) decay followed by the h(c) -> gamma eta(c) transition. The branching fractions are measured ... -
Study of the process e(+) e(-) -> p(p)over-bar via initial state radiation at BESIII
Kolcu, Onur Buğra (Amer Physic Soc., 2019-05-10)The Born cross section for the process e(+) e(-)-> p (p) over bar is measured using the initial state radiation technique with an undetected photon. This analysis is based on datasets corresponding to an integrated luminosity ... -
Study of the process e(+) e(-) -> pi(0)pi(0)J/psi and neutral charmoniumlike state Z(c)(3900)(0)
Kolcu, Onur Buğra; BESIII Collaboration (Amer Physical Soc., 2020)Cross sections of the process e(+)e(-) -> pi(0)pi(0)J/psi at center-of-mass energies between 3.808 and 4.600 GeV are measured with high precision by using 12.4 fb(-1) of data samples collected with the BESIII detector ...