SCOAP3 Repository 10 records found  Search took 0.05 seconds. 
1. On experimental confirmation of the corrections to Fermi’s golden rule / Ishikawa, K ; Jinnouchi, O ; Kubota, A ; Sloan, T ; et al
Standard calculations by Fermi’s golden rule involve approximations. [...]
Published in PTEP 2019 (2019) 033B02 10.1093/ptep/ptz006 arXiv:1901.03019
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2. Nucleon form factors and root-mean-square radii on a (10.8 fm)4 lattice at the physical point / Shintani, Eigo ; Ishikawa, Ken-Ichi ; Kuramashi, Yoshinobu ; Sasaki, Shoichi ; et al
We present the nucleon form factors and root-mean-square (RMS) radii measured on a (10.8 fm)4 lattice at the physical point. [...]
Published in Physical Review D 99 (2019) 10.1103/PhysRevD.99.014510 arXiv:1811.07292
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3. Finite size effect on pseudoscalar meson sector in 2+1 flavor QCD at the physical point / Ishikawa, K.I. ; Ishizuka, N. ; Kuramashi, Y. ; Nakamura, Y. ; et al
We investigate the finite size effect on pseudoscalar meson masses and decay constants using a subset of the “PACS10” configurations which are generated keeping the space-time volumes over (10 fm)4 in 2+1 flavor QCD at the physical point. [...]
Published in Physical Review D 99 (2019) 10.1103/PhysRevD.99.014504 arXiv:1807.06237
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4. Calculation of Kππ decay amplitudes with an improved Wilson fermion action in a nonzero momentum frame in lattice QCD / Ishizuka, N. ; Ishikawa, K.I. ; Ukawa, A. ; Yoshié, T.
We present our result for the Kππ decay amplitudes for both the ΔI=1/2 and 3/2 processes with the improved Wilson fermion action. [...]
Published in Physical Review D 98 (2018) 10.1103/PhysRevD.98.114512 arXiv:1809.03893
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5. Particle decay in Gaussian wave-packet formalism revisited / Ishikawa, Kenzo ; Oda, Kin-ya
We derive Fermi’s golden rule in the Gaussian wave-packet formalism of quantum field theory, proposed by Ishikawa, Shimomura, and Tobita, for particle decay within a finite time interval. [...]
Published in PTEP 2018 (2018) 123B01 10.1093/ptep/pty127 arXiv:1809.04285
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6. Nucleon form factors on a large volume lattice near the physical point in 2+1 flavor QCD / Ishikawa, Ken-Ichi ; Kuramashi, Yoshinobu ; Sasaki, Shoichi ; Tsukamoto, Natsuki ; et al
We present results for the isovector nucleon form factors measured on a 964 lattice at almost the physical pion mass with a lattice spacing of 0.085 fm in 2+1 flavor QCD. [...]
Published in Physical Review D 98 (2018) 10.1103/PhysRevD.98.074510 arXiv:1807.03974
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7. Utility of geometry in lattice QCD simulations / Ukita, Naoya ; Ishikawa, Ken-Ichi ; Kuramashi, Yoshinobu
We propose a way to improve the resolution of the spatial momentum and the time interval for hadron propagators utilizing the lattice geometry. [...]
Published in Physical Review D 98 (2018) 10.1103/PhysRevD.98.014515 arXiv:1805.10821
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8. Non-perturbative determination of the Λ-parameter in the pure SU(3) gauge theory from the twisted gradient flow coupling / Ishikawa, Ken-Ichi ; Kanamori, Issaku ; Murakami, Yuko ; Nakamura, Ayaka ; et al
We evaluate the Λ-parameter in the M S ¯ $$ \overline{\mathrm{MS}} $$ scheme for the pure SU(3) gauge theory with the twisted gradient flow (TGF) method. [...]
Published in JHEP 1712 (2017) 067 10.1007/JHEP12(2017)067 arXiv:1702.06289
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9. IR fixed points in SU(3) gauge theories / Ishikawa, K.-I. ; Iwasaki, Y. ; Nakayama, Yu ; Yoshie, T.
We propose a novel RG method to specify the location of the IR fixed point in lattice gauge theories and apply it to the SU(3) gauge theories with Nf fundamental fermions. [...]
Published in Physics letters B (2015) 10.1016/j.physletb.2015.07.019
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10. Anomalous radiative transitions / Ishikawa, Kenzo ; Tajima, Toshiki ; Tobita, Yutaka
Anomalous transitions involving photons derived by many-body interaction of the form in the standard model are studied for the first time. [...]
Published in PTEP 2015 (2015) 013B02 10.1093/ptep/ptu168 arXiv:1409.4339
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See also: similar author names
1 Ishikawa, K.
1 Ishikawa, K.-I.
2 Ishikawa, K.I.
4 Ishikawa, Ken-Ichi
2 Ishikawa, Kenzo
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