Browsing Faculty of Engineering by OzU Authors "Dağ, Hüseyin"
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B → T transition form factors in light-cone sum rules
Aliev, T. M.; Dağ, Hüseyin; Kokulu, A.; Ozpineci, A. (American Physical Society, 2019-11-11)We present a new calculation of the semileptonic tree-level and flavor-changing neutral current form factors describing B-meson transitions to tensor mesons T ¼ D2, K2, a2, f2 (JP ¼ 2þ). We employ the QCD light-cone sum ... -
Exploratory study of χc1(4140) and like states in QCD sum rules
Türkan, Arzu; Dağ, Hüseyin (Elsevier, 2019-05)In this work, we chose three molecular and three diquark-antidiquark currents with the quark content c (c) over bars (s) over bar and J(PC) = 0(++), 1(++), 2(++), and estimated the masses and the meson coupling constants ... -
Hot medium effects on pseudotensor K2(1820) meson
Türkan, Arzu; Dağ, Hüseyin; Süngü, J. Y.; Veliev, V. (EDP Sciences, 2019)The investigation of mesons in hot medium can give valuable information about the nature of QCD vacuum and deconfinement phase transitions. In this study, thermal properties of pseudotensor K-2(1820) meson is examined via ... -
Investigating the structure of X(4140) in QCD
Dağ, Hüseyin; Türkan, Arzu (EDP Sciences, 2017)In this work, the masses of the ground states coupling to molecular or tetraquark currents with JPC = 0++, 1++, 2++ are studied to investigate the structure of X(4140) exotic meson observed at J/ψφ invariant mass spectrum. ... -
Investigation of P-wave scalar and S-wave pseudo-scalar charmonia semileptonic transitions to the Ds(D) meson in QCD
Dağ, Hüseyin; Azizi, K.; Bashiri, V. (IOP Publishing, 2010)In this work, the semileptonic decays of the scalar charmonium state Xc0 and the pseudo scalar charmonia states ηc(1s) and ηc(2s) into Ds and D mesons are analyzed. The form factors of the transitions Xc0 → Ds(D)_ν and ... -
Investigation of the excited states in hidden charm hidden strange sector
Dağ, Hüseyin; Türkan, Arzu (2018)In this work, we studied the radial excitations of X(4140) and like states within QCD sum rules. We chose three molecular and three diquark-antidiquark currents with the quark content cc‾ss‾ and JPC = 0++, 1++, 2++, and ... -
Light D-wave axial-tensor K2(1820) meson at finite temperature
Türkan, Arzu; Dağ, Hüseyin; Süngü, J. Y.; Veliev, V. (IOP Publishing, 2019-06)In this work the properties of the axial-tensor K-2(1820) meson in a hot medium are investigated. The mass and the decay constant of this state are calculated via thermal QCD sum rules considering QCD condensates up to ... -
Mass and pole residue of Yb(10890) state with JPC = 1−− at finite temperature
Süngü, J. Y.; Türkan, Arzu; Dağ, Hüseyin; Veliev, V. (AIP Publishing, 2019)The status of the hidden beauty state Y-b is not clear up to now. The deviations from the expected behavior can provide a clue to consider it as an exotic meson candidate. Assuming the Y-b resonance as a tetraquark, we ... -
The semileptonic B to K1(1270, 1400) decays in QCD sum rules
Dağ, Hüseyin; Özpineci, A.; Zeyrek, H. T. (IOP Publishing, 2011)We analyze the semileptonic rare decays of the B meson to K1(1270) and K1(1400) axial vector mesons. The B → K1(1270, 1400)_+_− decays are significant flavor-changing neutral current decays of the B meson. These decays are ... -
Theoretical determination of K(1)(1270,1400) mixing angle in QCD
Dağ, Hüseyin; Ozpineci, A.; Çağıl, A.; Erkol, Güray (IOP Publishing, 2012)In quark model, the strange axial vector mesons K1(1270) and K1(1400) are defined as the mixtures of orbital angular momentum states K1A and K1B. In this work, by using the orthogonality of the mass eigenstates, we have ...
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