Impact of Strange Quark Matter Nuggets on Pycnonuclear Reaction Rates in the Crusts of Neutron Stars

Abstract

This paper presents an investigation into the pycnonuclear reaction rates in dense crustal matter of neutron stars contaminated with strange quark matter nuggets. The presence of such nuggets in the crustal matter of neutron stars would be a natural consequence if Witten's strange quark matter hypothesis is correct. The methodology presented in this paper is a recreation of a recent representation of nuclear force interactions embedded within pycnonuclear reaction processes. The study then extends the methodology to incorporate distinctive theoretical characteristics of strange quark matter nuggets, like their low charge-per-baryon ratio, and then assesses their effects on the pycnonuclear reaction rates. Particular emphasis is put on the impact of color superconductivity on the reaction rates. Depending on whether or not quark nuggets are in this novel state of matter, their electric charge properties vary drastically which turns out to have a dramatic effect on the pycnonuclear reaction rates. Future nuclear fusion network calculations may thus have the potential to shed light on the existence of strange quark matter nuggets and on whether or not they are in a color superconducting state, as suggested by QCD.

12 pages, 9 figures. Accepted for publication in The Physical Review C

References in corpus (8)

• Color superconductivity in dense quark matter
• Constraints on the high-density nuclear equation of state from the phenomenology of compact stars and heavy-ion collisions
• Quark matter in compact stars?
• Dense Matter in Compact Stars: Theoretical Developments and Observational Constraints
• Signature of Shallow Potentials in Deep Sub-barrier Fusion Reactions
• Pulsars as Astrophysical Laboratories for Nuclear and Particle Physics
• Fusion reactions in multicomponent dense matter
• Surface effects in color superconducting strange-quark matter

Cited by in corpus (5)

• Electrically Charged Strange Quark Stars
• Properties of High-Density Matter in Neutron Stars
• Mass limits of the extremely fast-spinning white dwarf CTCV J2056-3014
• Prospects for the Observation of Continuous Gravitational Waves from Deformed Fast-spinning White Dwarfs
• Effects of Pycnonuclear Reactions on White Dwarf Stellar Evolution