Results 101 to 110 of about 1,339 (163)

Anomalous U(1) extension of the Standard Model

Journal of High Energy Physics
We present a set of example models in which the Standard Model (SM) symmetry group is extended by a new abelian symmetry. This additional symmetry appears anomalous in the effective low-energy theory; however, the anomalies cancel out when massive chiral
Pascal Anastasopoulos, Ignatios Antoniadis, Karim Benakli, François Rondeau   +3 more
doaj   +1 more source

Phenomenology of Vector-like Fermions in Physics Beyond the Standard Model

, 2017
PhD thesis, based on arXiv:1408 ...
openaire   +2 more sources

Revisiting the minimal Nelson-Barr model

Journal of High Energy Physics
We revisit the minimal Nelson-Barr model for solving the strong CP problem through the idea of spontaneous CP breaking. The minimal model suffers from the quality problem, which means that the strong CP angle is generated by higher-dimensional operators ...
Kai Murai, Kazunori Nakayama
doaj   +1 more source

Colorful particle production at high-energy muon colliders

Journal of High Energy Physics
A high-energy μ + μ − collider provides a wide variety of mechanisms for the production of new heavy particles. While the reach for such particles via the direct annihilation of μ + μ − will approach the center-of-mass energy of the collider, the ...
Tao Han, Matthew Low, Tong Arthur Wu, Keping Xie   +3 more
doaj   +1 more source

Higgs Vacuum Stability with Vector-Like Fermions [PDF]

, 2020
openaire   +1 more source

Loop-induced masses for the first two generations with optimum flavour violation

Journal of High Energy Physics
A mechanism for the masses of third, second, and first generation charged fermions at the tree, 1-loop, and 2-loop levels, respectively, is proposed. The fermionic self-energy corrections that lead to this arrangement are induced through heavy vector ...
Gurucharan Mohanta, Ketan M. Patel
doaj   +1 more source

Effective description of Nelson-Barr models and the theta parameter

Journal of High Energy Physics
Nelson-Barr theories solve the strong CP problem with CP spontaneously broken at Λcp and transmitted to the CP conserving version of the SM through vector-like quarks (VLQs).
Gustavo H. S. Alves, Celso C. Nishi
doaj   +1 more source

Correction to Temperature and Bekenstein-Hawking Entropy of Kiselev Black Hole Surrounded by Quintessence. [PDF]

Entropy (Basel)
Wang C.
europepmc   +1 more source

Gravitational form factors of the Higgs boson. [PDF]

Eur Phys J C Part Fields
Beißner P, Sun BD, Epelbaum E, Gegelia J.   +3 more
europepmc   +1 more source

Correction to the Entropy of a Charged Rotating Accelerated Black Hole Due to Lorentz Invariance Violation. [PDF]

Entropy (Basel)
Wang C, Wang HY, Yang SZ.
europepmc   +1 more source