SCOAP3 Repository 6 records found  Search took 0.02 seconds. 
1. Probing CP-violating Higgs sectors via the precision measurement of coupling constants / Aoki, Mayumi ; Hashino, Katsuya ; Kaneko, Daiki ; Kanemura, Shinya ; et al
We study how the effects of the CP violation can be observed indirectly by precision measurements of Higgs boson couplings at a future Higgs factory such as the International Linear Collider. [...]
Published in PTEP 2019 (2019) 053B02 10.1093/ptep/ptz038 arXiv:1808.08770
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2. Selecting models of first-order phase transitions using the synergy between collider and gravitational-wave experiments / Hashino, Katsuya ; Jinno, Ryusuke ; Kakizaki, Mitsuru ; Kanemura, Shinya ; et al
We investigate the sensitivity of future space-based interferometers such as LISA and DECIGO to the parameters of new particle physics models which drive a first-order phase transition in the early Universe. [...]
Published in Physical Review D 99 (2019) 10.1103/PhysRevD.99.075011 arXiv:1809.04994
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3. Gravitational waves from phase transitions in models with charged singlets / Ahriche, Amine ; Hashino, Katsuya ; Kanemura, Shinya ; Nasri, Salah
We investigate the effect of extra singlets on the electroweak phase transition (EWPT) strength and the spectrum of the corresponding gravitational waves (GWs). [...]
Published in Physics letters B 789 (2019) 119-126 10.1016/j.physletb.2018.12.013
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4. Gravitational waves from first order electroweak phase transition in models with the U(1) X gauge symmetry / Hashino, Katsuya ; Kakizaki, Mitsuru ; Kanemura, Shinya ; Ko, Pyungwon ; et al
We consider a standard model extension equipped with a dark sector where the U(1) X Abelian gauge symmetry is spontaneously broken by the dark Higgs mechanism. [...]
Published in JHEP 1806 (2018) 088 10.1007/JHEP06(2018)088 arXiv:1802.02947
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5. Gravitational waves and Higgs boson couplings for exploring first order phase transition in the model with a singlet scalar field / Hashino, Katsuya ; Kakizaki, Mitsuru ; Kanemura, Shinya ; Ko, Pyungwon ; et al
We calculate the spectrum of gravitational waves originated from strongly first order electroweak phase transition in the extended Higgs model with a real singlet scalar field. [...]
Published in Physics letters B (2016) 10.1016/j.physletb.2016.12.052
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6. Discriminative phenomenological features of scale invariant models for electroweak symmetry breaking / Hashino, Katsuya ; Kanemura, Shinya ; Orikasa, Yuta
Classical scale invariance (CSI) may be one of the solutions for the hierarchy problem. [...]
Published in Physics letters B (2015) 10.1016/j.physletb.2015.11.044
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