The ratio of the yields of antiprotons to protons in pp collisions has been
measured by the ALICE experiment at $sqrt{s} = 0.9$ and $7$~TeV during the
initial running periods of the Large Hadron Collider(LHC). The measurement
covers the transverse momentum interval $0.45 < p_{
m{t}} < 1.05$~GeV/$c$ and
rapidity $|y| < 0.5$. The ratio is measured to be $R_{|y| < 0.5} = 0.957 pm
0.006 (stat.) pm 0.014 (syst.)$ at $0.9$~TeV and $R_{|y| < 0.5} = 0.991 pm
0.005 (stat.) pm 0.014 (syst.)$ at $7$~TeV and it is independent of both
rapidity and transverse momentum. The results are consistent with the
conventional model of baryon-number transport and set stringent limits on any
additional contributions to baryon-number transfer over very large rapidity
intervals in pp collisions.
Note: answers to reviews or questions about the article must be posted in the forum section.
Authors are not allowed to review their own article. They can use the forum section.
browser Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)
REGISTER
Did you like this article? 
