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Meng, Q.*; Hiyama, Emiko; Hosaka, Atsushi; Oka, Makoto; Gubler, P.; Can, K. U.*; Takahashi, Toru*; Zong, H. S.*
Few-Body Systems, 62(4), p.79_1 - 79_5, 2021/12
Times Cited Count：3 Percentile：25.74(Physics, Multidisciplinary)Meng, Q.*; Hiyama, Emiko*; Hosaka, Atsushi; Oka, Makoto; Gubler, P.; Can, K. U.*; Takahashi, Toru*; Zong, H. S.*
Physics Letters B, 814, p.136095_1 - 136095_6, 2021/03
Times Cited Count：68 Percentile：98.59(Astronomy & Astrophysics)Bahtiyar, H.*; Can, K. U.*; Erkol, G.*; Gubler, P.; Oka, Makoto; Takahashi, Toru*
Physical Review D, 102(5), p.054513_1 - 054513_18, 2020/09
Times Cited Count：49 Percentile：88.64(Astronomy & Astrophysics)Spectrum of the ground state and excited states of charmed baryons was evaluated in the lattice QCD, the first principle of hadronic interaction. We deliver the spectrum of the positive and negative parity baryons with one, two or three charmed quarks. A variational approach was employed by the use of multiple operators with different Dirac matrix configurations and the smearings.
Bahtiyar, H.*; Can, K. U.*; Erkol, G.*; Oka, Makoto; Takahashi, Toru*
JPS Conference Proceedings (Internet), 26, p.022027_1 - 022027_4, 2019/11
Transition amplitude of spin 3/2 single and double-charm baryon to spin 1/2 ground state was evaluated in the lattice QCD, the first principle.
Can, K. U.*; Bahtiyar, H.*; Erkol, G.*; Gubler, P.; Oka, Makoto; Takahashi, Toru*
JPS Conference Proceedings (Internet), 26, p.022028_1 - 022028_5, 2019/11
Spectrum of the ground state and excited states of charmed baryons was evaluated in the lattice QCD, the first principle.
pentaquark states predicted by a quark modelMeng, Q.*; Hiyama, Emiko*; Can, K. U.*; Gubler, P.; Oka, Makoto; Hosaka, Atsushi; Zong, H.*
Physics Letters B, 798, p.135028_1 - 135028_8, 2019/11
Times Cited Count：0Bartiyar, H.*; Can, K. U.*; Erkol, G.*; Oka, Makoto; Takahashi, Toru*
Physical Review D, 98(11), p.114505_1 - 114505_14, 2018/12
Times Cited Count：35 Percentile：78.16(Astronomy & Astrophysics)Transition amplitude of spin 3/2 double-charm baryon to spin 1/2 ground state was evaluated in the lattice QCD, the first principle.
transition in lattice QCDBahtlyar, H.*; Can, K. U.*; Erkol, G.*; Oka, Makoto; Takahashi, Toru*
Physics Letters B, 772, p.121 - 126, 2017/09
Times Cited Count：36 Percentile：89.71(Astronomy & Astrophysics)We evaluate the electromagnetic 
transition on 2+1 flavor lattices corresponding to a pion mass of 
MeV. We extract the magnetic Sachs and Pauli form factors which give the 
-
transition magnetic moment and the decay rates of baryons. We did not find a signal for the magnetic form factor of the neutral transition 
, which is suppressed by the U-spin flavor symmetry. As a byproduct, we extract the magnetic form factors and the magnetic moments of and baryons, which give an insight to the dynamics of 
, 
and 
quarks having masses at different scales.
coupling and 
decay in lattice QCDCan, K. U.*; Erkol, G.*; Oka, Makoto; Takahashi, Toru*
Physics Letters B, 768, p.309 - 316, 2017/05
Times Cited Count：10 Percentile：55.94(Astronomy & Astrophysics)Can, K. U.*; Erkol, G.*; Oka, Makoto; Takahashi, Toru*
Physical Review D, 92(11), p.114515_1 - 114515_14, 2015/12
Times Cited Count：61 Percentile：87.29(Astronomy & Astrophysics)The electromagnetic form factors of the spin 
baryons, namely 
and 
, 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 from the E0 and M1 multipole form factors are extracted. Results for the electric quadrupole form factors, E2, are also given. Quark sector contributions are computed individually for each observable and then combined to obtain the baryon properties. We find that the charm quark contributions are systematically smaller than the strange-quark contributions in the case of the charge radii and magnetic moments. E2 moments of the 
and provide a statistically significant data to conclude that their electric charge distributions are deformed to an oblate shape. Properties of the spin 
and 
baryons are also computed and a thorough comparison is given. This complete study gives valuable hints about the heavy-quark dynamics in charmed hadrons.
transition in lattice QCDBahtiyar, H.*; Can, K. U.*; Erkol, G.*; Oka, Makoto
Physics Letters B, 747, p.281 - 286, 2015/06
Times Cited Count：38 Percentile：88.19(Astronomy & Astrophysics)We study the electromagnetic 
transition in 2 +1 flavor lattice QCD, which gives access to the dominant decay mode of 
baryon. The magnetic dipole and the electric quadrupole transition form factors are computed. The magnetic dipole form factor is found to be mainly determined by the strange quark and the electric quadrupole form factor to be negligibly small, in consistency with the quark model. We also evaluate the helicity amplitudes and the decay rate.
