We derive the Fermi's golden rule in the Gaussian wave-packet formalism of
quantum field theory, proposed by Ishikawa, Shimomura, and Tobita, for the
particle decay within a finite time interval. We present a systematic procedure
to separate the b...
Yuta Hamada Hikaru Kawai Yukari Nakanishi Kin-ya Oda
Nucl.Phys.B 953 114946-114946 2017年9月
The observed Higgs mass indicates that the Standard Model can be valid up to
near the Planck scale . Within this framework, it is important to
examine how little modification is necessary to fit the recent experimental
results in parti...
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
hillclimbing inflation. The resultant inflationary predictions exhibit a
sizable deviation f...
We present how to implement special relativity in computer games. The
resultant relativistic world shows the time dilation and Lorentz contraction
exactly, not only for the player but also for all the nonplayer characters, who
obey the correct rel...
Koji Nakamura Kenji Nishiwaki Kin-ya Oda Seong Chan Park Yasuhiro Yamamoto
Eur.Phys.J.C 77(5) 273-273 2017年1月
We study a class of models in which the Higgs pair production is enhanced at
hadron colliders by an extra neutral scalar. The scalar particle is produced by
the gluon fusion via a loop of new colored particles, and decays into di-Higgs
through its...
JOURNAL OF HIGH ENERGY PHYSICS 05(5) 125-125 2011年2月
We study implications of generalized non-zero Dirichlet boundary condition
along with the ordinary Neumann one on a bulk scalar in the Randall-Sundrum
warped compactification. First we show profiles of vacuum expectation value of
the scalar under ...
We clarify and study our previous observation that, under a compactification
with boundaries or orbifolding, vacuum expectation value of a bulk scalar field
can have different extra-dimensional wave-function profile from that of the
lowest Kaluza-...
We propose a simple five-dimensional extension of the Standard Model (SM)
without any Higgs potential nor any extra fields. A Higgs doublet lives in the
bulk of a flat line segment and its boundary condition is Dirichlet at the ends
of the line, w...
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