Browsing by Author "Oka, M."
Now showing items 1-18 of 18
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Axial charges of octet baryons in two-flavor lattice QCD
Erkol, Güray; Oka, M.; Takahashi, T. T. (Elsevier, 2010-03-15)We evaluate the strangeness-conserving NN, ΣΣ, ΞΞ, ΛΣ and the strangeness-changing ΛN, ΣN, ΛΞ, ΣΞ axial charges in lattice QCD with two flavors of dynamical quarks and extend our previous work on pseudoscalar-meson–octet-baryon ... -
Charmed baryon spectrum from lattice QCD near the physical point
Bahtiyar, H.; Can, K. U.; Erkol, Güray; Gubler, P.; Oka, M.; Takahashi, T. T. (American Physical Society, 2020-09-23)We calculate the low-lying spectrum of charmed baryons in lattice QCD on the 32(3) x 64, N-f = 2 +/- 1 PACS-CS gauge configurations at the almost physical pion mass of similar to 156 MeV/c(2). By employing a set of ... -
Electromagnetic properties of doubly charmed baryons in Lattice QCD
Can, K. Utku; Erkol, Güray; Işıldak, Bora; Oka, M.; Takahashi, T. T. (Elsevier, 2013-11-04)We compute the electromagnetic properties of Ξcc baryons in (2+1)-flavor Lattice QCD. By measuring the electric charge and magnetic form factors of Ξcc baryons, we extract the magnetic moments, charge and magnetic radii ... -
Electromagnetic structure of charmed baryons
Can, K. U.; Oka, M.; Erkol, Güray; Işıldak, Bora; Takahashi, T. T. (Proceedings of Science, 2013)We compute the electromagnetic form factors of charmed baryons (∑ c, (ξcc, ω c and ω cc) in 2+1 Lattice QCD and extract their electric and magnetic charge radii as well as their magnetic mo-ments. Such observables are ... -
Electromagnetic structure of charmed baryons - extended to spin-3/2
Can, K. U.; Oka, M.; Erkol, Güray; Takahashi, T. T. (2015)The electromagnetic form factors of the spin-3/2 Ω baryons, namely the Ω, Ω∗c , Ω∗ cc and Ωccc, are calculated in full QCD on 323 x 64 PACS-CS lattices with a pION mass of 156(9) MeV. The electric charge radii and magnetic ... -
Electromagnetic structure of charmed baryons in Lattice QCD
Can, Kadir Utku; Erkol, Güray; Işıldak, Bora; Oka, M.; Takahashi, T. T. (Springer Science+Business Media, 2014-05)As a continuation of our recent work on the electromagnetic properties of the doubly charmed (sic)(cc) baryon, we compute the charge radii and the magnetic moments of the singly charmed Sigma(c), Omega(c) and the doubly ... -
Electromagnetic structure of charmed hadrons
Erkol, Güray; Can, K. U.; Işıldak, Bora; Oka, M.; Ozpineci, A.; Takahashi, T. T. (IOP Publishing, 2014)We compute the electromagnetic structures of D and D* mesons, the singly charmed Σc, Ωc and the doubly charmed Ξcc, Ωcc baryons in 2+1 flavor Lattice QCD. We extract the charge radii and the magnetic moments of these ... -
First lattice calculation of charmed hadrons' electromagnetic form factors
Can, K. Utku; Erkol, Güray; Işıldak, Bora; Oka, M.; Takahashi, T. T. (IOP Publishing, 2014)Electromagnetic form factors of D and D* mesons and Ξcc, Σc, Ωc and Ωcc baryons are calculated in 2+1 flavor lattice QCD. As a by product of this calculation electric/magnetic charge radii and magnetic moments are extracted. ... -
A look inside charmed-strange baryons from lattice QCD
Can, K. U.; Erkol, Güray; Oka, M.; Takahashi, T. T. (American Physical Society, 2015-12-01)The electromagnetic form factors of the spin-3/2 Ω baryons, namely Ω, Ω∗c, Ω∗cc and Ωccc, are calculated in full QCD on 323×64 PACS-CS lattices with a pion mass of 156(9) MeV. The electric charge radii and magnetic moments ... -
Meson-baryon coupling constants in two-flavor lattice QCD
Erkol, Güray; Oka, M.; Takahashi, T. T. (American Institute of Physics, 2010)We evaluate the pseudoscalar-meson coupling constants and the strangeness-conservingand the strangeness-changing axial charges of octet baryons in lattice QCD with two flavors ofdynamical quarks.We find that the coupling ... -
Pseudoscalar-meson octet-baryon coupling constants from two-flavor lattice QCD
Takahashi, T. T.; Erkol, Güray; Oka, M. (Elsevier, 2010-04-01)We evaluate the pseudoscalar-meson octet-baryon coupling constants and the corresponding axial charges in eight channels (πNN, πΣΣ, πΛΣ, KΛN, KΣN, πΞΞ, KΛΞ and KΣΞ) in lattice QCD with two flavors of dynamical quarks. The ... -
Pseudoscalar-meson-octet-baryon coupling constants in two-flavor lattice QCD
Erkol, Güray; Oka, M.; Takahashi, T. T. (American Physical Society, 2009-04-01)We evaluate the πΝΝ, π∑∑, πΛ∑, KΛN and K∑N coupling constants and the corresponding monopole masses in lattice QCD with two flavors of dynamical quarks. The parameters representing the SU(3)-flavor symmetry are computed ... -
Radiative transitions of doubly charmed baryons in lattice QCD
Bahtiyar, H.; Can, K. U.; Erkol, Güray; Oka, M.; Takahashi, T. T. (American Physical Society, 2018-12-13)We evaluate the spin-3/2→spin-1/2 electromagnetic transitions of the doubly charmed baryons on 2+1 flavor, 323×64 PACS-CS lattices with a pion mass of 156(9) MeV/c2. A relativistic heavy quark action is employed to minimize ... -
Spin content of Λ in QCD sum rules
Erkol, Güray; Oka, M. (American Physical Society, 2009-06-01)We calculate the isoscalar axial-vector coupling constants of the Λ hyperon using the method of QCD sum rules. A determination of these coupling constants reveals the individual contributions of the u, d, and the s quarks ... -
Vector and axial-vector couplings of D and D⁎ mesons in 2+1 flavor lattice QCD
Can, Kadir Utku; Erkol, Güray; Oka, M.; Ozpineci, A.; Takahashi, T. T. (Elsevier, 2013-02-12)Using the axial-vector coupling and the electromagnetic form factors of the D and D⁎ mesons in 2+1 flavor lattice QCD, we compute the D⁎Dπ , DDρ and D⁎D⁎ρ coupling constants, which play an important role in describing ... -
ΛcΣcπ coupling and Σc → Λcπ decay in lattice QCD
Can, K. U.; Erkol, Güray; Oka, M.; Takahashi, T. T. (Elsevier, 2017-05-10)We evaluate the Lambda(c)Sigma(c)pi coupling constant (G(Lambda c)Sigma(c)pi) and the width of the strong decay Sigma(c) -> Lambda(c)pi in 2 + 1flavor lattice QCD on four different ensembles with pion masses ranging from ... -
Ξcγ→Ξc ′ transition in lattice QCD
Bahtiyar, H.; Can, K. U.; Erkol, Güray; Oka, M.; Takahashi, T. T. (Elsevier, 2017-09-10)We evaluate the electromagnetic Ξcγ→Ξc ′ transition on 2+1 flavor lattices corresponding to a pion mass of ∼156 MeV. We extract the magnetic Sachs and Pauli form factors which give the Ξc–Ξc ′ transition magnetic moment ... -
Ωcγ → Ω∗ transition in lattice QCD
Bahtiyar, H.; Can, K. U.; Erkol, Güray; Oka, M. (Elsevier, 2015-07-30)We study the electromagnetic View the MathML sourceΩcγ→Ωc⁎ transition in 2+12+1 flavor lattice QCD, which gives access to the dominant decay mode of View the MathML sourceΩc⁎ baryon. The magnetic dipole and the electric ...
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