Next-to-next-to-leading order QCD corrections in models of TeV-scale gravity

We compute the next-to-next-to-leading order QCD corrections to the graviton production in models of TeV-scale gravity, within the soft-virtual approximation. For the Arkani-Hamed, Dimopoulos and Dvali (ADD) model we evaluate the contribu-tion to the Drell-Yan cross section, and we present distribut...

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Detalles Bibliográficos
Autores principales:	De Florian, D., Mahakhud, M., Mathews, P., Mazzitelli, J., Ravindran, V.
Formato:	JOUR
Materias:	Phenomenology of Large extra dimensions QCD Phenomenology
Acceso en línea:	http://hdl.handle.net/20.500.12110/paper_11266708_v2014_n4_p_DeFlorian
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	todo:paper_11266708_v2014_n4_p_DeFlorian
record_format	dspace
spelling	todo:paper_11266708_v2014_n4_p_DeFlorian2023-10-03T16:07:10Z Next-to-next-to-leading order QCD corrections in models of TeV-scale gravity De Florian, D. Mahakhud, M. Mathews, P. Mazzitelli, J. Ravindran, V. Phenomenology of Large extra dimensions QCD Phenomenology We compute the next-to-next-to-leading order QCD corrections to the graviton production in models of TeV-scale gravity, within the soft-virtual approximation. For the Arkani-Hamed, Dimopoulos and Dvali (ADD) model we evaluate the contribu-tion to the Drell-Yan cross section, and we present distributions for the di-lepton invariant mass at the LHC with a center-of-mass energy √SH = 14 TeV. We find a large K factor (K ∼1.8) for large values of invariant mass, which is the region where the ADD graviton contribution dominates the cross section. The increase in the cross section with respect to the previous order result is larger than 10% in the same invariant mass region. We also observe a substantial reduction in the scale uncertainty. For the Randall-Sundrum (RS) model we computed the total single graviton production cross section at the LHC. We find an increase between 10% and 13% with respect to the next-to-leading order prediction, depending on the model parameters. We provide an analytic expression for the NNLO K factor as a function of the lightest RS graviton mass. © 2014 The Author(s). Fil:De Florian, D. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_11266708_v2014_n4_p_DeFlorian
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	Phenomenology of Large extra dimensions QCD Phenomenology
spellingShingle	Phenomenology of Large extra dimensions QCD Phenomenology De Florian, D. Mahakhud, M. Mathews, P. Mazzitelli, J. Ravindran, V. Next-to-next-to-leading order QCD corrections in models of TeV-scale gravity
topic_facet	Phenomenology of Large extra dimensions QCD Phenomenology
description	We compute the next-to-next-to-leading order QCD corrections to the graviton production in models of TeV-scale gravity, within the soft-virtual approximation. For the Arkani-Hamed, Dimopoulos and Dvali (ADD) model we evaluate the contribu-tion to the Drell-Yan cross section, and we present distributions for the di-lepton invariant mass at the LHC with a center-of-mass energy √SH = 14 TeV. We find a large K factor (K ∼1.8) for large values of invariant mass, which is the region where the ADD graviton contribution dominates the cross section. The increase in the cross section with respect to the previous order result is larger than 10% in the same invariant mass region. We also observe a substantial reduction in the scale uncertainty. For the Randall-Sundrum (RS) model we computed the total single graviton production cross section at the LHC. We find an increase between 10% and 13% with respect to the next-to-leading order prediction, depending on the model parameters. We provide an analytic expression for the NNLO K factor as a function of the lightest RS graviton mass. © 2014 The Author(s).
format	JOUR
author	De Florian, D. Mahakhud, M. Mathews, P. Mazzitelli, J. Ravindran, V.
author_facet	De Florian, D. Mahakhud, M. Mathews, P. Mazzitelli, J. Ravindran, V.
author_sort	De Florian, D.
title	Next-to-next-to-leading order QCD corrections in models of TeV-scale gravity
title_short	Next-to-next-to-leading order QCD corrections in models of TeV-scale gravity
title_full	Next-to-next-to-leading order QCD corrections in models of TeV-scale gravity
title_fullStr	Next-to-next-to-leading order QCD corrections in models of TeV-scale gravity
title_full_unstemmed	Next-to-next-to-leading order QCD corrections in models of TeV-scale gravity
title_sort	next-to-next-to-leading order qcd corrections in models of tev-scale gravity
url	http://hdl.handle.net/20.500.12110/paper_11266708_v2014_n4_p_DeFlorian
work_keys_str_mv	AT defloriand nexttonexttoleadingorderqcdcorrectionsinmodelsoftevscalegravity AT mahakhudm nexttonexttoleadingorderqcdcorrectionsinmodelsoftevscalegravity AT mathewsp nexttonexttoleadingorderqcdcorrectionsinmodelsoftevscalegravity AT mazzitellij nexttonexttoleadingorderqcdcorrectionsinmodelsoftevscalegravity AT ravindranv nexttonexttoleadingorderqcdcorrectionsinmodelsoftevscalegravity
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Next-to-next-to-leading order QCD corrections in models of TeV-scale gravity

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