What information can we obtain from the yield ratio $π^-/π^+$ in heavy-ion collisions ?

Details What information can we obtain from the yield ratio $π^-/π^+$ in heavy-ion collisions ? What information can we obtain from the yield ratio $π^-/π^+$ in heavy-ion collisions ?

1996-06-19

arxiv.org/abs/hep-ph/9606366v1

Phys.Rev.C54:2167-2170,1996

Physics

High Energy Physics

High Energy Physics - Phenomenology

7 pages, Latex type, 8 figures

Scientific paper

10.1103/PhysRevC.54.R2167

The recently reported data on the yield ratio $\pi^-/\pi^+$ in central rapidity region of heavy-ion collisions are analyzed by theoretical formula which accounts for Coulomb interaction between central charged fragment (CCF) consisting of nearly stopped nucleons with effective charge $Z_{\mbox{\scriptsize eff}}$ and charged pions produced in the same region of the phase space. The Coulomb wave function method is used instead of the usual Gamow factor in order to account for the finite production range of pions, $\beta$. For Gaussian shape of the pion production sources it results in a quasi-scaling in $\beta$ and $Z_{\mbox{\scriptsize eff}}$ which makes determination of parameters $\beta$ and $Z_{\mbox{\scriptsize eff}}$ from the existing experimental data difficult. Only sufficiently accurate data taken in the extreme small $m_{\scriptscriptstyle T}$-$m_{\pi}$ region, where this quasi-scaling is broken, could be used for this purpose.

Affiliated with

Also associated with

No associations

Rating

What information can we obtain from the yield ratio $π^-/π^+$ in heavy-ion collisions ? does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with What information can we obtain from the yield ratio $π^-/π^+$ in heavy-ion collisions ?, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and What information can we obtain from the yield ratio $π^-/π^+$ in heavy-ion collisions ? will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-681272