| dc.contributor |
University of Helsinki, Helsinki Institute of Physics (HIP) (-2009) |
en |
| dc.contributor |
University of Helsinki, Helsinki Institute of Physics (HIP) (-2009) |
en |
| dc.contributor |
University of Helsinki, Helsinki Institute of Physics (HIP) (-2009) |
en |
| dc.contributor |
University of Helsinki, Helsinki Institute of Physics (HIP) (-2009) |
en |
| dc.contributor |
University of Helsinki, Department of Physics |
en |
| dc.contributor |
University of Helsinki, Department of Physics |
en |
| dc.contributor.author |
Aaltonen, T. |
|
| dc.contributor.author |
Mehtala, P. |
|
| dc.contributor.author |
Orava, R. |
|
| dc.contributor.author |
Maki, T. |
|
| dc.contributor.author |
Saarikko, H. |
|
| dc.contributor.author |
Osterberg, K. |
|
| dc.contributor.author |
CDF collaboration |
|
| dc.date.accessioned |
2011-01-04T09:45:01Z |
|
| dc.date.available |
2011-01-04T09:45:01Z |
|
| dc.date.issued |
2009 |
|
| dc.identifier.citation |
Aaltonen , T , Mehtala , P , Orava , R , Maki , T , Saarikko , H , Osterberg , K & CDF collaboration 2009 , ' Observation of Exclusive Charmonium Production and γγ→μ+μ- in pp̅ Collisions at √s=1.96 TeV ' Physical Review Letters , vol 102 , no. 24 , pp. 242001 . DOI: 10.1103/PhysRevLett.102.242001 |
en |
| dc.identifier.issn |
0031-9007 |
|
| dc.identifier.other |
PURE: 9383803 |
|
| dc.identifier.other |
PURE UUID: 13d01ab3-a3ad-47e5-a674-5c4cd49b5fc0 |
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| dc.identifier.other |
ArXiv: http://arxiv.org/abs/0902.1271v4 |
|
| dc.identifier.uri |
http://hdl.handle.net/10138/24421 |
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| dc.description.abstract |
We have observed the reactions p+pbar --> p+X+pbar, with X being a centrally produced J/psi, psi(2S) or chi_c0, and gamma+gamma --> mu+mu-, in proton- antiproton collisions at sqrt{s} = 1.96 TeV using the Run II Collider Detector at Fermilab. The event signature requires two oppositely charged muons, each with pseudorapidity |eta| mu+mu-. Events with a J/psi and an associated photon candidate are consistent with exclusive chi_c0 production through double pomeron exchange. The exclusive vector meson production is as expected for elastic photo- production, gamma+p --> J/psi(psi(2S)) + p, which is observed here for the first time in hadron-hadron collisions. The cross sections ds/dy(y=0) for p + pbar --> p + X + pbar with X = J/psi, psi(2S) orchi_c0 are 3.92+/-0.62 nb, 0.53+/-0.14 nb, and 75+/-14 nb respectively. The cross section for the continuum, with |eta(mu+/-)| |
fi |
| dc.format.extent |
7 |
|
| dc.language.iso |
eng |
|
| dc.publisher |
American Physical Society |
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| dc.relation.ispartof |
Physical Review Letters |
|
| dc.relation.uri |
http://prl.aps.org/pdf/PRL/v102/i24/e242001 |
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| dc.rights |
|
en |
| dc.subject |
hep-ex |
en |
| dc.subject |
114 Physical sciences |
en |
| dc.title |
Observation of Exclusive Charmonium Production and γγ→μ+μ- in pp̅ Collisions at √s=1.96 TeV |
en |
| dc.title.alternative |
Observation of exclusive charmonium production and gamma+gamma to mu+mu- in p+pbar collisions at sqrt{s} = 1.96 TeV |
en |
| dc.type |
A1 Refereed journal article |
|
| dc.identifier.doi |
http://dx.doi.org/10.1103/PhysRevLett.102.242001 |
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| dc.type.uri |
info:eu-repo/semantics/article |
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| dc.contributor.pbl |
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| dc.contributor.pbl |
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