Diffractive pQCD mechanism of exclusive production of W+W - pairs in proton-proton collisions
(2012) 6th International Conference on Quarks and Nuclear Physics, QNP 2012- Abstract
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... (More)
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.
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- author
- Lebiedowicz, Piotr ; Pasechnik, Roman LU and Szczurek, Antoni
- organization
- publishing date
- 2012
- type
- Chapter in Book/Report/Conference proceeding
- publication status
- published
- host publication
- Proceedings of Science
- conference name
- 6th International Conference on Quarks and Nuclear Physics, QNP 2012
- conference location
- Palaiseau, Paris, France
- conference dates
- 2012-04-16 - 2012-04-20
- external identifiers
-
- scopus:85087244700
- language
- English
- LU publication?
- yes
- id
- ffe7a9ff-40ae-4ed7-b4ef-d689b12fb1a9
- date added to LUP
- 2016-08-18 20:00:39
- date last changed
- 2024-01-04 11:03:49
@inproceedings{ffe7a9ff-40ae-4ed7-b4ef-d689b12fb1a9, abstract = {{<p>We present a study of central exclusive production of W<sup>+</sup>W <sup>-</sup> pairs in proton-proton collisions at the LHC. We compare the contribution of the γγ → W<sup>+</sup>W<sup>-</sup> mechanism with a new mechanism of exclusive diffractive production through the gg → W<sup>+</sup>W<sup>-</sup> 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<sup>+</sup>W <sup>-</sup> and γγW<sup>+</sup>W<sup>-</sup> couplings due to new physics beyond Standard Model.</p>}}, author = {{Lebiedowicz, Piotr and Pasechnik, Roman and Szczurek, Antoni}}, booktitle = {{Proceedings of Science}}, language = {{eng}}, title = {{Diffractive pQCD mechanism of exclusive production of W+W - pairs in proton-proton collisions}}, year = {{2012}}, }