37 citations · 69 across the 12 of their papers we have counts for
12 papers
Entanglement entropy minimization and global symmetry violation in scatterings
Shinya Kanemura, Masanori Tanaka
The concept of quantum information has provided new ways to investigate the theoretical structure of particle interactions. In particular, it has been shown that extrema of quantum…
Impact of dimension-8 SMEFT operators on baryogenesis via sphaleron decoupling
Kiyoto Ogawa, Masanori Tanaka
We investigate whether a baryogenesis mechanism known as sphalerogenesis can account for the observed baryon asymmetry of the Universe within the Standard Model effective field the…
Supermassive Primordial Black Holes from a Catalyzed Dark Phase Transition for Little Red Dots
Jinhui Guo, Jia Liu, Masanori Tanaka +2
JWST has revealed an abundant population of compact, low-metallicity "Little Red Dots" (LRDs) at high redshift, challenging conventional scenarios in which supermassive black holes…
Baryogenesis in multiplet models
Kiyoto Ogawa, Masanori Tanaka
We investigate baryogenesis in Standard Model (SM) extensions with new multiplet fields. We focus on sphalerogenesis, in which the baryon asymmetry of the Universe (BAU)…
Super-critical primordial black hole formation via delayed first-order electroweak phase transition
Katsuya Hashino, Shinya Kanemura, Tomo Takahashi +2
The delay of the first-order electroweak phase transitions (EWPT) may lead to the emergence of baby universes inside wormhole structures due to the large vacuum energy density in f…
New collider implications on a strongly first order EWPT
Ricardo R. Florentino, Shinya Kanemura, Masanori Tanaka
In order to understand the early history of the universe, and to test baryogenesis models, determining the nature of the electroweak phase transition is imperative. The order and s…
Exploring loop-induced first-order electroweak phase transition in the Higgs effective field theory
Ricardo R. Florentino, Shinya Kanemura, Masanori Tanaka
The nearly aligned Higgs Effective Field Theory (naHEFT) is based on the general assumption: all deviations in the Higgs boson couplings are originated from quantum one-loop effect…
Primordial black holes from slow phase transitions: a model-building perspective
Shinya Kanemura, Masanori Tanaka, Ke-Pan Xie
We investigate the formation of primordial black holes (PBHs) through delayed vacuum decay during slow cosmic first-order phase transitions. Two specific models, the polynomial pot…
Gravitational Waves from Phase Transitions in Scale Invariant Models
Amine Ahriche, Shinya Kanemura, Masanori Tanaka
We investigate the properties of the gravitational waves (GWs) generated during a strongly first order electroweak phase transition (EWPT) in models with the classical scale invari…
Probing first-order electroweak phase transition via primordial black holes in the effective field theory
Katsuya Hashino, Shinya Kanemura, Tomo Takahashi +1
We investigate production of primordial black holes from first-order electroweak phase transition in the framework of the nearly aligned Higgs effective field theory, in which non-…
Electroweak phase transition in the nearly aligned Higgs effective field theory
Shinya Kanemura, Ryo Nagai, Masanori Tanaka
We investigate the strongly first-order electroweak phase transition using an effective field theoretical approach. The standard effective field theory with finite number truncatio…
Strongly first-order electroweak phase transition by relatively heavy additional Higgs bosons
Shinya Kanemura, Masanori Tanaka
We discuss first-order electroweak phase transition in models with extended Higgs sectors for the case with relatively heavy additional scalar bosons. We first show that, by the co…