Zobrazeno 1 - 10
of 6 750
pro vyhledávání: '"Kingman, A."'
We investigate the recently reported $t\bar{t}$ excess by the CMS Collaboration within the framework of conventional Two-Higgs-Doublet Models (2HDMs). Considering all four types (I, II, X, and Y), we perform a comprehensive parameter space scan using
Externí odkaz:
http://arxiv.org/abs/2410.08609
Our goal is to investigate the charged Higgs phenomenology in the framework of 2HDM at the upcoming $e^+e^-$ and muon colliders. We are primarily concerned with the associated production processes with a fermion pair: $\ell^+ \ell^- \to \tau^+ \nu_{\
Externí odkaz:
http://arxiv.org/abs/2408.13952
We observe that most studies of axion-like particle (ALP) production channels at the Large Hadron Collider (LHC) focus on a single type of ALP operator for each process in the effective field theory framework. In this work, we propose an alternative
Externí odkaz:
http://arxiv.org/abs/2404.14833
A spinning supermassive black hole (SMBH) at the core of an active galactic nucleus (AGN) provides room for the elusive ultra-light scalar particles (ULSP) to be produced through a phenomenon called \textit{superradiance}. As a result of this phenome
Externí odkaz:
http://arxiv.org/abs/2404.09955
We study axion-like particles (ALPs) with quark-flavor-violating couplings at the LHC. Specifically, we focus on the theoretical scenario with ALP-top-up and ALP-top-charm interactions, in addition to the more common quark-flavor-diagonal couplings.
Externí odkaz:
http://arxiv.org/abs/2404.06126
In this work, we calculate the sensitivities on the gauge-boson couplings $g_{aZZ}$, $g_{aZ\gamma}$, and $g_{aWW}$ of an axion-like particle (ALP) that one can achieve at the LHC with $\sqrt{s}=14$ TeV and integrated luminosities of 300 fb$^{-1}$ (cu
Externí odkaz:
http://arxiv.org/abs/2402.10550
Autor:
Cheung, Kingman, Ouseph, C. J.
We interpret the recent excess in a rare decay of the Higgs boson, $H\to Z\gamma$, using a light axion-like particle (ALP) in the massrange $0.05 - 0.1$ GeV.The dominant decay of such a light ALP is into a pair of collimated photons, whose decay is r
Externí odkaz:
http://arxiv.org/abs/2402.05678
Autor:
Cheung, Kingman, Kim, Yongkyu, Kwon, Youngjoon, Ouseph, C. J., Soffer, Abner, Wang, Zeren Simon
In the minimal $U(1)$ extension of the Standard Model (SM), a new gauge boson referred to as "dark photon" is predicted. The dark-photon mass can be generated from an additional Higgs mechanism associated with a dark scalar boson. At $B$-factories su
Externí odkaz:
http://arxiv.org/abs/2401.03168
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 9, Pp 1-17 (2024)
Abstract We observe that most studies of axion-like particle (ALP) production channels at the Large Hadron Collider (LHC) focus on a single type of ALP operator for each process in the effective field theory framework. In this work, we propose an alt
Externí odkaz:
https://doaj.org/article/6e62040edcf44291b34ccef1666a90aa
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 84, Iss 9, Pp 1-18 (2024)
Abstract This study investigates the classical Higgs inflation model with a modified Higgs potential featuring a dip. We examine the implications of this modification on the generation of curvature perturbations, stochastic gravitational wave product
Externí odkaz:
https://doaj.org/article/79f942f7056340e895db9ab17d0078ca