Zobrazeno 1 - 10
of 99
pro vyhledávání: '"Hiroshi Yokoya"'
Autor:
Long Chen, Gudrun Heinrich, Stephan Jahn, Stephen P. Jones, Matthias Kerner, Johannes Schlenk, Hiroshi Yokoya
Publikováno v:
Journal of High Energy Physics, Vol 2020, Iss 4, Pp 1-23 (2020)
Abstract We present a calculation of the NLO QCD corrections to the loop-induced production of a photon pair through gluon fusion, including massive top quarks at two loops, where the two-loop integrals are calculated numerically. Matching the fixed-
Externí odkaz:
https://doaj.org/article/4b718bb4d3b64be9bc2f69355df1b8ee
Publikováno v:
Journal of High Energy Physics, Vol 2019, Iss 1, Pp 1-19 (2019)
Abstract It was proposed recently that different chiralities of the dark matter (DM) fermion under a broken dark U(1) gauge group can lead to distinguishable signatures at the LHC through shower patterns, which may reveal the mass origin of the dark
Externí odkaz:
https://doaj.org/article/063fdf1032274a5eaf6f78db7d4fd9e1
Publikováno v:
Nuclear Physics B, Vol 929, Iss , Pp 193-206 (2018)
We explore discrimination of two types of leptonic Yukawa interactions associated with Higgs triplet, L¯LcΔLL, and with SU(2) singlet doubly charged scalar, e¯Rck++eR. These interactions can be distinguished by measuring the effects of doubly char
Externí odkaz:
https://doaj.org/article/9c30f46628ae4f0d97aac32df089dc0d
Publikováno v:
Journal of High Energy Physics, Vol 2018, Iss 2, Pp 1-38 (2018)
Abstract We study consequences of CP violation in the htt¯ $$ ht\overline{t} $$ Yukawa coupling through the process e+e−→h125tt¯ $$ {e}^{+}{e}^{-}\to h(125)t\overline{t} $$. The helicity amplitudes are calculated in the tt¯ $$ t\overline{t} $$
Externí odkaz:
https://doaj.org/article/45c53ba5703948178e29ebc0f635009a
Autor:
Sayaka Kawabata, Hiroshi Yokoya
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 77, Iss 5, Pp 1-7 (2017)
Abstract We calculate the $$gg\rightarrow \gamma \gamma $$ g g → γ γ amplitude by including the $$t\bar{t}$$ t t ¯ bound-state effects near their mass threshold. In terms of the non-relativistic expansion of the amplitude, the LO contribution is
Externí odkaz:
https://doaj.org/article/fbef5cedef76412b98938451d51537b6
Publikováno v:
Physics Letters B, Vol 750, Iss C, Pp 384-389 (2015)
Family gauge boson production at the LHC is investigated according to a U(3) family gauge model with twisted family number assignment. In the model we study, a family gauge boson with the lowest mass, A11, interacts only with the first generation lep
Externí odkaz:
https://doaj.org/article/a040b810cfcb474d89a205aca2e8b0ef
Publikováno v:
Nuclear Physics B, Vol 898, Iss C, Pp 286-300 (2015)
We study direct searches of additional Higgs bosons in multi-top-quarks events at the LHC Run-II, its luminosity upgraded version with 3000 fb−1, and the International Linear Collider (ILC) with the collision energy of 1 TeV. Additional Higgs boson
Externí odkaz:
https://doaj.org/article/acc0e36b0f834667b26a2f874345c919
Publikováno v:
Physics Letters B, Vol 741, Iss , Pp 232-238 (2015)
We propose a new method to measure a theoretically well-defined top quark mass at the LHC. This method is based on the “weight function method,” which we proposed in our preceding paper. It requires only lepton energy distribution and is basicall
Externí odkaz:
https://doaj.org/article/a0ed5b997ba24b2497476dad0cafb463
Publikováno v:
Nuclear Physics B, Vol 886, Iss C, Pp 524-553 (2014)
We discuss complementarity of discovery reaches of heavier neutral Higgs bosons and charged Higgs bosons at the LHC and the International Linear Collider (ILC) in two Higgs doublet models (2HDMs). We perform a comprehensive analysis on their producti
Externí odkaz:
https://doaj.org/article/7dc61f3aa5014ba5a41094e55011b74f
Autor:
Hiroaki Fujita, Taiichi Wakiya, Yota Tatara, Keinosuke Ishido, Yoshiyuki Sakamoto, Norihisa Kimura, Hajime Morohashi, Takuya Miura, Takahiro Muroya, Harue Akasaka, Hiroshi Yokoyama, Taishu Kanda, Shunsuke Kubota, Aika Ichisawa, Kenta Ogasawara, Daisuke Kuwata, Yoshiya Takahashi, Akie Nakamura, Keisuke Yamazaki, Takahiro Yamada, Ryo Matsuyama, Masanobu Kanou, Kei Yamana, Ken Itoh, Kenichi Hakamada
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-11 (2024)
Abstract Nicotinamide adenine dinucleotide (NAD +) plays a pivotal role in numerous cellular functions. Reduced NAD + levels are postulated to be associated with cancer. As interest in understanding NAD + dynamics in cancer patients with therapeutic
Externí odkaz:
https://doaj.org/article/36e1888fc82c4bf1b7f2105e410b61a2