D0 Collaboration, including; Weber, Michael (2011). Wgamma production and limits on anomalous WWgamma couplings in ppbar collisions
Full text not available from this repository. (Request a copy)We measure the cross section and the difference in rapidities between photons and charged leptons for inclusive W -> lnu+gamma production in egamma and mugamma final states. Using data corresponding to an integrated luminosity of 4.2 fb-1 collected with the D0 detector at the Fermilab Tevatron Collider, the cross section multiplied by the branching fraction for the process ppbar -> Wgamma+X -> lnugamma+X, measured to be 15.8 +/- 0.8 (stat.) +/- 1.2 (syst.) pb, and the distribution of the charge-signed photon-lepton rapidity difference are found to be in agreement with the standard model. These results provide the most stringent limits on anomalous WWgamma couplings for data from hadron colliders: -0.4 < Delta kappa_gamma < 0.4 and -0.08 < lambda_gamma < 0.07 at the 95% C.L.
Item Type: |
Working Paper |
|---|---|
Division/Institute: |
08 Faculty of Science > Physics Institute > Laboratory for High Energy Physics (LHEP) |
UniBE Contributor: |
Weber, Michele |
Subjects: |
500 Science > 530 Physics |
Language: |
English |
Submitter: |
Factscience Import |
Date Deposited: |
04 Oct 2013 14:28 |
Last Modified: |
05 Dec 2022 14:08 |
ArXiv ID: |
1109.4432 |
Additional Information: |
Kollaboration. Es sind nur die Berner Autoren namentlich erwähnt. |
URI: |
https://boris.unibe.ch/id/eprint/10473 (FactScience: 216366) |
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