D0 Collaboration, including; Weber, Michael (2011). Wgamma production and limits on anomalous WWgamma couplings in ppbar collisions
Full text not available from this repository.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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