Pion Productions with Isospin-Dependent In-Medium Cross Sections

Round 1

Reviewer 1 Report

The authors employ their previously developed DJBUU method to study the isospin-dependent in-medium effects by introducing density- and isospin-dependent cross sections for ∆ baryon productions. They compare their pion yields and single and double ratios with the measurements in Sn+Sn at SπRIT. They obtain that effect of dense nuclear matter as well as isospin asymmetries are very important to explain the pion productions.  I find the manuscript well organized and clearly written, and the results interesting. My general comment is that many statements in the manuscript are either not more detail explained or supported by references, and the authors should correct this. Several examples are provided below, but the authors should go through the whole manuscript and every statement either justify or support by reference

-          Line 65-66: why is the introduced assumption justified?

-          Line 71-72: why is the introduced assumption justified?

-          Line 83-86: Gausian shape has physical interpretation, while polynomial does not – please physically motivate the use of this function.

 

-          Eqs.12-14: please justify the assumptions and support with references.

Author Response

Please see the attachment

Author Response File: Author Response.docx

Reviewer 2 Report

The authors studied the isospin-dependent in medium effects by including density- and isospin-dependent cross sections for Δ baryon productions based on a recently developed transport model, DaeJeon Boltzmann-Uehling-Uhlenbeck (DJBUU). They compared their results with the SπRIT data by considering these effects and find that the yields as well as the ratios strongly depend on the in-medium effect, especially isospin-dependent in-medium cross sections for Δ resonances. I found the paper is very well written and the results presented are interesting. Thus, I recommend its publication in this journal.  Please find the following suggestions/questions. 

1. Figure 1, there are two Delta- (black and red), but without Delta0. Please check whether this is a typo. 

  2. Figure 2 (a) and (b), please plot different line styles to denote different cases. The results in Fig. 2(c), are there any stiatical errors on your data points for case1-case4 ?   Those error bars should be included. 

  3. Can the 4 cases of parameter sets reproduce the properties of the symmetry energy of the two collision system ?   What's the relations between the isospin dependence cross section and symmetry energy ?

   4. Equ. 19, why the isospin dependent cross section of Delta baryon is introduction in such function form ?  Is there any specific explanation ? 

 

Author Response

Please see the attachment.

Author Response File: Author Response.docx

Round 2

Reviewer 1 Report

The authors have addressed all my comments, and I recommend the manuscript for publication.