Yazar "Kolcu, Onur Buğra" için Elektrik-Elektronik Mühendisliği Bölümü Makale Koleksiyonu listeleme
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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 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 Semileptonic Decay D-0 -> a(0)(980)(-)e(+)nu(e) and Evidence for D+ -> a(0)(980)(0)e(+)nu(e)
Kolcu, Onur Buğra (Amer Physical Soc., 2018)Using an e(+)e(-) collision data sample of 2.93 fb(-1) collected at a center-of-mass energy of 3.773 GeV by the BESIII detector at BEPCII, we report the observation of D-0 -> a(0)(980)(-)e(+)nu(e) and evidence for 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 W-annihilation decay D-s(+) -> omega pi(+) and evidence for D-s(+) -> omega K+
Kolcu, Onur Buğra (Amer Physic Soc., 2019-05-13)We report the observation of W-annihilation decay D-s(+) -> omega pi(+) and evidence for D-s(+) -> omega K+ in a data sample corresponding to an integrated luminosity of 3.19 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 ... -
Observation of h(1)(1380) in the J/psi -> eta ' K(K)over-bar pi decay
Kolcu, Onur Buğra (Amer Physical Soc., 2018)Using 1.31 x 10(9) J/psi events collected by the BESIII detector at the BEPCII e(+)e(-) collider, we report the first observation of the h(1)(1380) in J/psi -> eta'h(1)(1380) with a significance of more than ten standard ... -
Oscillating Features in The Electromagnetic Structure of The Neutron
BESIII Collaboration; Kolcu, Onur Buğra (Nature Research, 2021)The complicated structure of the neutron cannot be calculated using first-principles calculations due to the large colour charge of quarks and the self-interaction of gluons. Its simplest structure observables are the ... -
Partial wave analysis of psi(3686) -> K+ K- eta
BESIII Collaboration; Kolcu, Onur Buğra (Amer Physical Soc., 2020)Using a sample of (448.1 +/- 2.9) x 10(6) psi(3686) events collected with the BESIII detector, we perform the first partial wave analysis of psi(3686) -> K+K- eta. In addition to the well established states, phi(1020), ... -
Partial-wave analysis of J /? ?k+K-?0
The BESIII collaboration; Kolcu, Onur Buğra (American Physical Society, 2019)A partial-wave analysis of the decay J/??K+K-?0 has been made using (223.7±1.4)×106 J/? events collected with the BESIII detector in 2009. The analysis, which is performed within the isobar-model approach, reveals contributions ... -
Polarization and entanglement in baryon–antibaryon pair production in electron–positron annihilation
The BESIII collaboration; Kolcu, Onur Buğra (Nature Publishing Group, 2019)Particles directly produced at electron–positron colliders, such as the J/? meson, decay with relatively high probability into a baryon–antibaryon pair1. For spin-1/2 baryons, the pair can have the same or opposite helicites. ... -
Precise measurements of branching fractions for D-s(+) meson decays to two pseudoscalar mesons
Kolcu, Onur Buğra; BESIII Collaboration (Springer, 2020)We measure the branching fractions for seven D-s(+) two-body decays to pseudoscalar mesons, by analyzing data collected at root s = 4:178 similar to 4:226 GeV with the BESIII detector at the BEPCII collider. The branching ... -
Precision Measurement of the Branching Fractions of eta ' Decays
Kolcu, Onur Buğra (Amer Physic Soc., 2019-04-09)Based on a sample of (1310.6 +/- 7.0) x 10(6)J/psi events collected with the BESIII detector, we present measurements of J=. and. 0 absolute branching fractions using the process J/psi -> gamma eta'. By analyzing events ... -
Precision measurements of the e(+)e(-) -> (KSK +/-)-K-0 pi(-/+) Born cross sections at center-of-mass energies between 3.8 and 4.6 GeV
Kolcu, Onur Buğra (Amer Physic Soc., 2019-04-11)Using data samples collected by the BESIII detector operating at the BEPCII storage ring, we measure the e(+)e(-) -> (KSK +/-)-K-0 pi(-/+ )Born cross sections at center-of-mass energies between 3.8 and 4.6 GeV, corresponding ... -
Precision Study of eta ' -> gamma pi(+) pi(-) Decay Dynamics
The BESIII collaboration; Kolcu, Onur Buğra (American Physical Society, 2018)Using a low background data sample of 9.7×105 J/?????, ?????+?- events, which are 2 orders of magnitude larger than those from the previous experiments, recorded with the BESIII detector at BEPCII, the decay dynamics of ... -
Search for a strangeonium-like structure Z(s) decaying into phi pi and a measurement of the cross section e(+)e(-) -> phi pi pi
Kolcu, Onur Buğra (Amer Physical Soc., 2019)Using a data sample of e(+)e(-) collision data corresponding to an integrated luminosity of 108 pb(-1) collected with the BESIII detector at a center-of-mass energy of 2.125 GeV, we study the process e(+)e(-) -> phi pi pi ... -
Search for baryon and lepton number violation in J/psi -> Lambda(+)(c)e(-) + c.c.
Kolcu, Onur Buğra (Amer Physic Soc., 2019-04-12)Using 1.31 x 10(9) J/psi events collected by the BESIII detector at the Beijing Electron Positron Collider, we search for the process J/psi -> Lambda(+)(c)e(-) + c.c. for the first time. In this process, both baryon and ...