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dc.contributor.author
Cieri, Leandro
dc.contributor.author
Coradeschi, Francesco
dc.contributor.author
de Florian, Daniel Enrique
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dc.date.available
2018-05-08T21:10:18Z
dc.date.issued
2015-06
dc.identifier.citation
Cieri, Leandro; Coradeschi, Francesco; de Florian, Daniel Enrique; Diphoton Production at Hadron Colliders: Transverse-Momentum Resummation at NNLL; Springer; Journal of High Energy Physics; 2015; 6; 6-2015; 1-22; 185
dc.identifier.issn
1029-8479
dc.identifier.uri
http://hdl.handle.net/11336/44538
dc.description.abstract
We consider the transverse-momentum (qT ) distribution of a diphoton pair pro- duced in hadron collisions. At small values of qT , we resum the logarithmically-enhanced perturbative QCD contributions up to next-to-next-to-leading logarithmic accuracy. At intermediate and large values of qT , we consistently combine resummation with the known next-to-leading order perturbative result. All perturbative terms up to order αS2 are in- cluded in our computation which, after integration over qT , reproduces the known next- to-next-to-leading order result for the diphoton pair production total cross section. We present a comparison with LHC data and an estimate of the perturbative accuracy of the theoretical calculation by performing the corresponding variation of scales. In general we observe that the effect of the resummation is not only to recover the predictivity of the calculation at small transverse momentum, but also to improve substantially the agreement with the experimental data.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Springer
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Diphoton
dc.subject
Lac
dc.subject.classification
Astronomía
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dc.subject.classification
Ciencias Físicas
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dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
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dc.title
Diphoton Production at Hadron Colliders: Transverse-Momentum Resummation at NNLL
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2018-05-04T21:31:32Z
dc.journal.volume
2015
dc.journal.number
6
dc.journal.pagination
1-22; 185
dc.journal.pais
Italia
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dc.description.fil
Fil: Cieri, Leandro. Universidad de Roma; Italia
dc.description.fil
Fil: Coradeschi, Francesco. Universidad de Firenze; Italia
dc.description.fil
Fil: de Florian, Daniel Enrique. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Física de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Física de Buenos Aires; Argentina
dc.journal.title
Journal of High Energy Physics
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dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://link.springer.com/article/10.1007/JHEP06(2015)185
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/https://doi.org/10.1007/JHEP06(2015)185
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