Rights statement: © 2011 American Physical Society
Final published version, 231 KB, PDF document
Research output: Contribution to Journal/Magazine › Journal article › peer-review
Article number | 241803 |
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<mark>Journal publication date</mark> | 9/12/2011 |
<mark>Journal</mark> | Physical review letters |
Issue number | 24 |
Volume | 107 |
Number of pages | 7 |
Pages (from-to) | - |
Publication Status | Published |
<mark>Original language</mark> | English |
We measure the cross section and the difference in rapidities between photons and charged leptons for inclusive W(-> l nu) + gamma production in e gamma and mu gamma 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 measured cross section times branching fraction for the process p (p) over bar -> W gamma + X -> l nu gamma + X 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 WW gamma 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.