W{gamma} Production and Limits on Anomalous WW{gamma} Couplings in pp Collisions at {radical}(s)=1.96 TeV

Journal Article · Fri Dec 09 00:00:00 EST 2011 · Physical Review Letters

DOI:https://doi.org/10.1103/PHYSREVLETT.107.241803· OSTI ID:21612551

Abazov, V M; Alexeev, G D; Golovanov, G; Kharzheev, Y N; Malyshev, V L; Tokmenin, V V; Vertogradov, L S; Yatsunenko, Y A ^[1]; Abbott, B; Gutierrez, P; Jayasinghe, A; Severini, H; Skubic, P; Strauss, M; Svoisky, P ^[2]; Acharya, B S; Banerjee, S; Mondal, N K ^[3]; Adams, M; Bazterra, V ^[4]

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1. Joint Institute for Nuclear Research, Dubna (Russian Federation)
2. University of Oklahoma, Norman, Oklahoma 73019 (United States)
3. Tata Institute of Fundamental Research, Mumbai (India)
4. University of Illinois at Chicago, Chicago, Illinois 60607 (United States)

We measure the cross section and the difference in rapidities between photons and charged leptons for inclusive W({yields}l{nu})+{gamma} production in e{gamma} and {mu}{gamma} final states. Using data corresponding to an integrated luminosity of 4.2 fb{sup -1} collected with the D0 detector at the Fermilab Tevatron Collider, the measured cross section times branching fraction for the process pp{yields}W{gamma}+X{yields}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}{sub {gamma}<}0.4 and -0.08<{lambda}{sub {gamma}<}0.07 at the 95% C.L.

• OSTI ID: 21612551
• Journal Information: Physical Review Letters, Vol. 107, Issue 24; Other Information: DOI: 10.1103/PhysRevLett.107.241803; (c) 2011 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0031-9007
• Country of Publication: United States
• Language: English

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