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Polarizations of J/psi and psi(2S) mesons produced in pp collisions at square root s = 1.96 TeV.

Abstract:

We have measured the polarizations of J/psi and psi(2S) mesons as functions of their transverse momentum p(T) when they are produced promptly in the rapidity range |y| < 0.6 with p(T) > or =5 GeV/c. The analysis is performed using a data sample with an integrated luminosity of about 800 pb(-1) collected by the CDF II detector. For both vector mesons, we find that the polarizations become increasingly longitudinal as p(T) increases from 5 to 30 GeV/c. These results are compared to the pr...

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Authors


Abulencia, A More by this author
Adelman, J More by this author
Affolder, T More by this author
Akimoto, T More by this author
Albrow, MG More by this author
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Journal:
Physical review letters
Volume:
99
Issue:
13
Pages:
132001
Publication date:
2007-09-05
DOI:
EISSN:
1079-7114
ISSN:
0031-9007
URN:
uuid:edfc79f9-03fa-429c-a57b-08187a707c72
Source identifiers:
155602
Local pid:
pubs:155602
Language:
English
Keywords:

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