In this work, we review the general aspects of the high energy resummation technique. Recently derived results for high energy resummation of direct photon production are matched to NLO computations, and their implications at the Tevatron and at the LHC are explored. The effects of resummation are compared to various sources of theoretical uncertainties like PDFs and scale variations. We show how the high--energy resummation procedure stabilizes the logarithmic enhancement of the cross section at high--energy which is present at any fixed order in the perturbative expansion starting at NNLO.

HIGH ENERGY RESUMMATION IN PERTURBATIVE QCD / G. Diana ; supervisore: Stefano Forte ; coordinatore: Marco Bersanelli. Università degli Studi di Milano, 2010 Nov 26. 23. ciclo, Anno Accademico 2010. [10.13130/diana-giovanni_phd2010-11-26].

HIGH ENERGY RESUMMATION IN PERTURBATIVE QCD

G. Diana
2010

Abstract

In this work, we review the general aspects of the high energy resummation technique. Recently derived results for high energy resummation of direct photon production are matched to NLO computations, and their implications at the Tevatron and at the LHC are explored. The effects of resummation are compared to various sources of theoretical uncertainties like PDFs and scale variations. We show how the high--energy resummation procedure stabilizes the logarithmic enhancement of the cross section at high--energy which is present at any fixed order in the perturbative expansion starting at NNLO.
26-nov-2010
Settore FIS/02 - Fisica Teorica, Modelli e Metodi Matematici
High energy ; Resummation ; QCD
FORTE, STEFANO
BERSANELLI, MARCO RINALDO FEDELE
FORTE, STEFANO
Doctoral Thesis
HIGH ENERGY RESUMMATION IN PERTURBATIVE QCD / G. Diana ; supervisore: Stefano Forte ; coordinatore: Marco Bersanelli. Università degli Studi di Milano, 2010 Nov 26. 23. ciclo, Anno Accademico 2010. [10.13130/diana-giovanni_phd2010-11-26].
File in questo prodotto:
File Dimensione Formato  
phd_unimi_R07870.pdf

accesso aperto

Tipologia: Tesi di dottorato completa
Dimensione 951.37 kB
Formato Adobe PDF
951.37 kB Adobe PDF Visualizza/Apri
Pubblicazioni consigliate

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2434/150145
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus ND
  • ???jsp.display-item.citation.isi??? ND
social impact