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Diffractive pQCD me...
Diffractive pQCD mechanism of exclusive production of W+W - pairs in proton-proton collisions
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- Lebiedowicz, Piotr (författare)
- Polish Academy of Learning
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- Pasechnik, Roman (författare)
- Lund University,Lunds universitet,Institutionen för astronomi och teoretisk fysik - Genomgår omorganisation,Naturvetenskapliga fakulteten,Department of Astronomy and Theoretical Physics - Undergoing reorganization,Faculty of Science
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- Szczurek, Antoni (författare)
- University of Rzeszów
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(creator_code:org_t)
- 2012
- 2012
- Engelska.
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Ingår i: Proceedings of Science.
- Relaterad länk:
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https://lup.lub.lu.s...
Abstract
Ämnesord
Stäng
- 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.
Publikations- och innehållstyp
- kon (ämneskategori)
- ref (ämneskategori)