Astrophysical Bounds on Milli-Charged Particles in Models with a Paraphoton
Sacha Davidson, Michael Peskin
Abstract
The upper bound on the number of relativistic species present at nucleosynthesis has been used to constrain particles with electric charge εe (10-8 < ε<1). We correct the bound previously calculated for milli-charged particles that interact with a shadow photon. We also discuss the additional constraints from the properties of red giants and of Supernova 1987A.
Create a lesson
Related papers
Chiral soliton lattice in inhomogeneous magnetic fields
Tomas Brauner, Ramkumar Radhakrishnan
From the November Revolution toward the Millennium
Chris Quigg
An Axial UA(1)Lμ-Lτ: UV Completion and Experimental Searches
Rundong Fang, Jinhui Guo, Ming Li et al.
Hunting long-lived doubly charged scalars at the HL-LHC
Biplob Bhattacherjee, Rituparna Ghosh, Swagata Mukherjee et al.
Enigmatic properties of Ξ(1620) and Ξ(1690)
Taísa Veloso, K. P. Khemchandani, A. Martinez Torres et al.
Exploring Z/γ-mediated heavy FCNCs at the FCC-ee
Abhik Sarkar, Subhajit Kala, Amir Subba et al.