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Title: From underlying event sensitive to insensitive: factorization and resummation

Journal Article · · Journal of High Energy Physics (Online)
 [1]; ORCiD logo [2];  [3]
  1. Fudan Univ., Shanghai (China)
  2. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
  3. Duke Univ., Durham, NC (United States)

In this study we study the transverse energy spectrum for the Drell-Yan process. The transverse energy is measured within the central region defined by a (pseudo-) rapidity cutoff. Soft-collinear effective theory (SCET) is used to factorize the cross section and resum large logarithms of the rapidity cutoff and ratios of widely separated scales that appear in the fixed order result. We develop a framework which can smoothly interpolate between various regions of the spectrum and eventually match onto the fixed order result. This way a reliable calculation is obtained for the contribution of the initial state radiation to the measurement. By comparing our result for Drell-Yan against Pythia we obtain a simple model that describes the contribution from multiparton interactions (MPI). A model with little or no dependence on the primary process gives results in agreement with the simulation. Based on this observation we propose MPI insensitive measurements.

Research Organization:
Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
Sponsoring Organization:
USDOE Office of Science (SC)
Grant/Contract Number:
AC52-06NA25396
OSTI ID:
1471360
Report Number(s):
LA-UR-18-21306
Journal Information:
Journal of High Energy Physics (Online), Vol. 2018, Issue 9; ISSN 1029-8479
Publisher:
Springer BerlinCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 5 works
Citation information provided by
Web of Science

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Cited By (7)

Subtracted cumulants: Mitigating large background in jet substructure journal October 2019
Jet veto resummation with jet rapidity cuts journal April 2019
Subleading power rapidity divergences and power corrections for qT journal April 2019
Jet veto resummation with jet rapidity cuts text January 2019
Subleading Power Rapidity Divergences and Power Corrections for $q_T$ text January 2019
Subleading Power Rapidity Divergences and Power Corrections for $q_T$ text January 2018
Jet Veto Resummation with Jet Rapidity Cuts text January 2018

Figures / Tables (6)


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