Chen, YC;
Hou, S;
Mitra, A;
Teng, PK;
Tsai, S-Y;
Wang, SM;
Blair, RE;
... Tipton, P; + view all
(2009)
Search for exclusive Z-boson production and observation of high-mass pp̄→pγγp̄→pl+l-p̄ events in pp̄ collisions at s=1.96TeV.
Physical Review Letters
, 102
(22)
, Article 222002. 10.1103/PhysRevLett.102.222002.
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Abstract
This Letter presents a search for exclusive Z boson production in proton-antiproton collisions at s=1.96TeV, using the CDFII detector. No exclusive Z→l+l- candidates are observed and the first upper limit on the exclusive Z cross section in hadron collisions is found to be σexcl(Z)<0.96pb at 95% confidence level. In addition, eight candidate exclusive dilepton events from the process pp̄→pγγp̄ →pl+l-p̄ are observed, and a measurement of the cross section for Mll>40GeV/c2 and |ηl|<4 is found to be σ=0.24-0.10+0.13pb, which is consistent with the standard model prediction. © 2009 The American Physical Society.
| Type: | Article |
|---|---|
| Title: | Search for exclusive Z-boson production and observation of high-mass pp̄→pγγp̄→pl+l-p̄ events in pp̄ collisions at s=1.96TeV |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1103/PhysRevLett.102.222002 |
| Publisher version: | http://dx.doi.org/10.1103/PhysRevLett.102.222002 |
| Language: | English |
| Additional information: | © 2009 The American Physical Society |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Physics and Astronomy |
| URI: | https://discovery-pp.ucl.ac.uk/id/eprint/1368883 |
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