Diffractive pQCD mechanism of exclusive production of W+W - pairs in proton-proton collisions
Summary, in English
We present a study of central exclusive production of W+W - pairs in proton-proton collisions at the LHC. We compare the contribution of the γγ → W+W- mechanism with a new mechanism of exclusive diffractive production through the gg → W+W- subprocess with intermediate virtual Higgs boson and quark box diagrams. The amplitude for the latter process is expressed in terms of the off-diagonal unintegrated gluon distribution functions. Several observables related to this process are calculated. The phase space integrated diffractive contribution when separated is only a small fraction of fb compared to 115.4 fb of the γγ-contribution without absorption. This opens a possibility of efficient searches for anomalous boson γW+W - and γγW+W- couplings due to new physics beyond Standard Model.
- Department of Astronomy and Theoretical Physics
Proceedings of Science
6th International Conference on Quarks and Nuclear Physics, QNP 2012
2012-04-16 - 2012-04-20
Palaiseau, Paris, France