Skip to main content

A study on the anomaly of p over  ratios in Au + Au collisions with jet quenching

Buy Article:

$43.90 plus tax (Refund Policy)

Abstract:

The ratios of p/ at large transverse momentum in central Au + Au collisions at RHIC are studied in the framework of jet quenching based on a next-to-leading order pQCD parton model. It is shown that theoretical calculations with a gluon energy loss larger than the quark energy loss will naturally lead to smaller p/ ratios at large transverse momentum in Au + Au collisions than those in p + p collisions at the same energy. Scenarios with equal energy losses for gluons and quarks and a strong jet conversion are both explored and it is demonstrated that in both scenarios p/ ratios at high pT in central Au + Au collisions are enhanced and the calculated ratios of protons over pions approach the experimental measurements. However, &{\bar{p}}/p; in the latter scenario is found to fit data better than that in the former scenario.

Document Type: Research Article

DOI: http://dx.doi.org/10.1088/0954-3899/37/1/015004

Publication date: January 1, 2010

iop/jphysg/2010/00000037/00000001/art015004
dcterms_title,dcterms_description,pub_keyword
6
5
20
40
5

Access Key

Free Content
Free content
New Content
New content
Open Access Content
Open access content
Subscribed Content
Subscribed content
Free Trial Content
Free trial content
Cookie Policy
X
Cookie Policy
Ingenta Connect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more