On Extraction of Chemical Potentials of Quarks from Particle Transverse Momentum Spectra in High Energy Collisions

TL;DR

This paper introduces two novel methods to determine quark chemical potentials from particle transverse momentum spectra in high energy collisions, emphasizing the importance of comprehensive spectral measurements for accurate extraction.

Contribution

It proposes new approaches for extracting quark chemical potentials using particle ratios and spectra, and advocates for simultaneous measurements of various hadrons in experiments.

Findings

Methods enable extraction of quark chemical potentials from spectral data.

Accurate measurements of multiple hadron spectra are crucial for reliable results.

The approaches can be applied to high energy nuclear collision data.

Abstract

We present two methods to extract the chemical potentials of quarks in high energy collisions. The first method is based on the ratios of negatively/positively charged particles, and the temperatures extracted from the transverse momentum spectra of related hadrons are needed. The second method is based on the chemical potentials of some particles, and we also need the transverse momentum spectra of related hadrons. To extract the quark chemical potentials, we would like to propose experimental collaborations to measure simultaneously not only the transverse momentum spectra of anti-p, p, K^-, K^+, pion^-, and pion^+, but also those of D^-, D^+, B^-, and B^+ (even those of Delta^++, Delta^-, and Omega^-) in high energy nuclear collisions