| CMS Physics Analysis Summaries | |
| Report number | CMS-PAS-FSQ-12-010 |
| Title | Search for exclusive two-photon production of $W^{+}W^{-}$ pairs in $pp$ collisions at 7~TeV |
| Corporate author(s) | CMS Collaboration |
| Collaboration | CMS Collaboration |
| Subject category | Particle Physics - Experiment |
| Accelerator/Facility, Experiment | CERN LHC ; CMS |
| Abstract | A search for exclusive or quasi-exclusive $W^{+}W^{-}$ production by two-photon exchange, $pp \rightarrow p^{(*)}W^{+}W^{-}p^{(*)}$, at $\sqrt{s}$~=~7~TeV is reported using data collected by the CMS detector corresponding to an integrated luminosity of 5.05~fb$^{-1}$. Events are selected by requiring a $\mu^{\pm}e^{\mp}$ vertex with no associated charged tracks, and dilepton transverse momentum $\pt(\mu^{\pm}e^{\mp})>$~30~GeV. Two events passing all selection requirements are observed in the data, compared to a Standard Model expectation of $2.2 \pm 0.5$ signal events with $0.84 \pm 0.13$ background. The tail of the dilepton transverse momentum distribution, with $\pt(\mu^{\pm}e^{\mp})>$~100~GeV, is studied for deviations from the Standard Model. No events are observed in this region, and the resulting upper limits are compared to predictions involving anomalous quartic gauge couplings. |
| Other source | Inspire |
| Related | superseded by: arXiv:1305.5596 |
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Email contact: [email protected]                           Fulltext in PDF Figure_001-a Figure_001-b Figure_002 Figure_003 Figure_004-a Figure_004-b Figure_004-c Figure_004-d Figure_005 Figure_006-a Figure_006-b Figure_007 Figure_008-a Figure_008-b Figure_009-a Figure_009-b Figure_010-a Figure_010-b Figure_011-a Figure_011-b Figure_011-c Figure_012-a Figure_012-b Figure_013 Figure_014 Additional information for the analysis (restricted access)
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Record created 2013-02-22, last modified 2018-06-15
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