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13 papers · 2 filters
Inelastic Dark Matter from Dark Higgs Boson Decays at FASER
Jinmian Li, Takaaki Nomura, Takashi Shimomura
We consider inelastic dark matter scenarios with dark photon mediator and a dark Higgs boson. The dark Higgs boson spontaneously breaks the gauge symmetry associated with the dark…
Searching for stop LSP at the LHC
Essodjolo Kpatcha, Iñaki Lara, Daniel E. López-Fogliani +3
We analyze relevant signals expected at the LHC for a stop as the lightest supersymmetric particle (LSP). The discussion is carried out in the framework of the SSM, where the p…
Signals of and bosons at the LHC in the gauge-Higgs unification
Shuichiro Funatsu, Hisaki Hatanaka, Yutaka Hosotani +2
The and () processes in the gauge-Higgs unification (GHU) models are studied, whe…
The Forward Physics Facility: Sites, Experiments, and Physics Potential
Luis A. Anchordoqui, Akitaka Ariga, Tomoko Ariga +78
The Forward Physics Facility (FPF) is a proposal to create a cavern with the space and infrastructure to support a suite of far-forward experiments at the Large Hadron Collider dur…
Electron Beam Dump Constraints on Light Bosons with Lepton Flavor Violating Couplings
Takeshi Araki, Kento Asai, Takashi Shimomura
We study constraints on light and feebly interacting bosons with lepton flavor violation from electron beam dump experiments. Scalar, vector, and dipole interactions of the bosons…
Classifying near-threshold enhancement using deep neural network
Denny Lane B. Sombillo, Yoichi Ikeda, Toru Sato +1
One of the main issues in hadron spectroscopy is to identify the origin of threshold or near-threshold enhancement. Prior to our study, there is no straightforward way of distingui…
Heavy baryon spectrum with chiral multiplets of scalar and vector diquarks
Yonghee Kim, Yan-Rui Liu, Makoto Oka +1
Chiral effective theory of scalar and vector diquarks is formulated according to the linear sigma model. The main application is to describe the ground and excited states of singly…
Model independent analysis of coupled-channel scattering: a deep learning approach
Denny Lane B. Sombillo, Yoichi Ikeda, Toru Sato +1
We develop a robust method to extract the pole configuration of a given partial-wave amplitude. In our approach, a deep neural network is constructed where the statistical errors o…
Effects of chiral MIT boundary conditions for a Dirac particle in a box
Ar Rohim, Kazuhiro Yamamoto
We investigate the effects of the chiral MIT boundary conditions for a Dirac particle in a 1D box. We show how the boundary condition affects the discrete momentum, energy level, t…
Baryon number non-conservation as Peccei-Quinn mechanism
Takahiro Ohata, Kengo Takeuchi, Koji Tsumura
Baryon number is an accidental symmetry in the standard model, while Peccei-Quinn symmetry is hypothetical symmetry which is introduced to solve the strong CP problem. We study the…
Pseudo-Nambu-Goldstone Dark Matter Model Inspired by Grand Unification
Yoshihiko Abe, Takashi Toma, Koji Tsumura +1
A pseudo-Nambu-Goldstone boson (pNGB) is an attractive candidate for dark matter (DM) due to the simple evasion of the current severe limits of DM direct detection experiments. One…
Electroweak and Left-Right Phase Transitions in Gauge-Higgs Unification
Shuichiro Funatsu, Hisaki Hatanaka, Yutaka Hosotani +2
The electroweak phase transition in GUT inspired gauge-Higgs unification is shown to be weakly first order and occurs at $T = T_c^{\rm EW} \sim 163\…
Scalar and fermion on-shell amplitudes in generalized Higgs effective field theory
Ryo Nagai, Masaharu Tanabashi, Koji Tsumura +1
Beyond standard model (BSM) particles should be included in effective field theory in order to compute the scattering amplitudes involving these extra particles. We formulate an ex…