Wgamma production and limits on anomalous WWgamma couplings in ppbar collisions

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, Michael

Subjects:

500 Science > 530 Physics

Language:

English

Submitter:

Factscience Import

Date Deposited:

04 Oct 2013 14:28

Last Modified:

28 Nov 2020 02:20

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)

Actions (login required)

Edit item Edit item
Provide Feedback