SCOAP3 Repository 8 records found  Search took 0.15 seconds. 
1. 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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2. Hillclimbing inflation in metric and Palatini formulations / Jinno, Ryusuke ; Kaneta, Kunio ; Oda, Kin-ya ; Park, Seong Chan
A new setup of cosmic inflation with a periodic inflaton potential and conformal factor is discussed in the metric and Palatini formulations of gravity. [...]
Published in Physics letters B (2019) 10.1016/j.physletb.2019.03.012
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3. On the violent preheating in the mixed Higgs- R 2 inflationary model / He, Minxi ; Jinno, Ryusuke ; Kamada, Kohei ; Park, Seong Chan ; et al
It has been argued that the mixed Higgs- R2 model acts as the UV extension of the Higgs inflation, pushing up its cut-off scale in the vacuum close up to the Planck scale. [...]
Published in Physics letters B 791 (2019) 36-42 10.1016/j.physletb.2019.02.008
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4. Hill-climbing Higgs inflation / Jinno, Ryusuke ; Kaneta, Kunio ; Oda, Kin-ya
We propose a realization of cosmic inflation with the Higgs field when the Higgs potential has degenerate vacua by employing the recently proposed idea of hill-climbing inflation. [...]
Published in Phys. Rev. D 97 (2018) 10.1103/PhysRevD.97.023523 arXiv:1705.03696
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5. Gravitational effects on inflaton decay / Ema, Yohei ; Jinno, Ryusuke ; Mukaida, Kyohei ; Nakayama, Kazunori
We point out that the inflaton inevitably couples to all non-conformally coupled matters gravitationally through an oscillation in the Hubble parameter or the cosmic scale factor. [...]
Published in JCAP 1505 (2015) 038 10.1088/1475-7516/2015/05/038 arXiv:1502.02475
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6. Cosmological implications of high-energy neutrino emission from the decay of long-lived particle / Ema, Yohei ; Jinno, Ryusuke ; Moroi, Takeo
We study cosmological scenarios in which high-energy neutrinos are emitted from the decay of long-lived massive particles at the cosmic time later than a redshift of ∼ 10 6 . [...]
Published in JHEP 1410 (2014) 150 10.1007/JHEP10(2014)150 arXiv:1408.1745
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7. Cosmic-ray neutrinos from the decay of long-lived particle and the recent IceCube result / Ema, Yohei ; Jinno, Ryusuke ; Moroi, Takeo
Motivated by the recent IceCube result, we study high energy cosmic-ray neutrino flux from the decay of a long-lived particle. [...]
Published in Physics letters B (2014) 10.1016/j.physletb.2014.04.021
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8. Inflationary gravitational waves and the evolution of the early universe / Jinno, Ryusuke ; Moroi, Takeo ; Nakayama, Kazunori
We study the effects of various phenomena which may have happened in the early universe on the spectrum of inflationary gravitational waves. [...]
Published in JCAP 1401 (2014) 040 10.1088/1475-7516/2014/01/040 arXiv:1307.3010
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