Constraints on millicharged particles by neutron stars

Abstract

We have constrained the charge-mass ($\epsilon -m$) phase space of millicharged particles through the simulation of the rotational evolution of neutron stars, where an extra slow-down effect due to the accretions of millicharged dark matter particles is considered. For a canonical neutron star of $M=1.4M_{\odot }$ and $R=10\mathrm{km}$ with typical magnetic field strength $B_0=10^{12}$ G, we have shown an upper limit of millicharged particles, which is compatible with recently experimental and observational bounds. Meanwhile, we have also explored the influences on the $\epsilon -m$ phase space of millicharged particles for different magnetic fields $B_0$ and dark matter density ${\rho }_{\mathrm{DM}}$ in the vicinity of the neutron star.

5 pages, 3 figures

References in corpus (21)

• First results from the LUX dark matter experiment at the Sanford Underground Research Facility
• Dark Matter Results from 225 Live Days of XENON100 Data
• Neutron Star Observations: Prognosis for Equation of State Constraints
• Results from a Search for Light-Mass Dark Matter with a P-type Point Contact Germanium Detector
• The McGill Magnetar Catalog
• A periodically active pulsar giving insight into magnetospheric physics
• WIMP Annihilation and Cooling of Neutron Stars
• Compact Stars as Dark Matter Probes
• Constraining Asymmetric Dark Matter through observations of compact stars
• Dark Matter from new Technicolor Theories
• Dense Matter in Compact Stars: Theoretical Developments and Observational Constraints
• An Improved Limit on Invisible Decays of Positronium
• Constraints on millicharged particles from Planck
• The physics of neutron stars
• First dark matter search results from the PandaX-I experiment
• New bounds on millicharged particles from cosmology
• Galactic 511 keV line from MeV millicharged dark matter
• Search for millicharged particles in reactor neutrino experiments: a probe of the PVLAS anomaly
• Dark Majorana Particles from the Minimal Walking Technicolor
• Compatibility of DAMA/LIBRA dark matter detection with other searches in light of new Galactic rotation velocity measurements
• Can Dark Matter explain the Braking Index of Neutron Stars?

Cited by in corpus (2)

• First Limit on the Direct Detection of Lightly Ionizing Particles for Electric Charge as Low as $e$/1000 with the \textsc{Majorana Demonstrator}
• Passage of millicharged particles in the electron beam-dump: refining constraints from SLACmQ and estimating sensitivity of NA64e