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Title: Spin polarisation of tt¯γγ production at NLO+PS with GoSam interfaced to MadGraph5_aMC@NLO

Here, we present an interface between the multipurpose Monte Carlo tool MadGraph5_aMC@NLO and the automated amplitude generator GoSam. As a first application of this novel framework, we compute the NLO corrections to pp→ tt¯H and pp→ tt¯γγ matched to a parton shower. In the phenomenological analyses of these processes, we focus our attention on observables which are sensitive to the polarisation of the top quarks.
Authors:
 [1] ;  [2] ;  [3] ;  [1] ;  [4] ;  [5]
  1. Max-Planck-Institut fur Physik, Munchen (Germany)
  2. Technische Univ., Munchen, Garching (Germany)
  3. SLAC National Accelerator Lab., Menlo Park, CA (United States)
  4. Max-Planck-Institut fur Physik, Munchen (Germany); Univ. di Padova and INFN Sezione di Padova, Padova (Italy)
  5. New York City College of Technology, City Univ. of New York, Brooklyn, NY (United States); City Univ. of New York, New York, NY (United States)
Publication Date:
OSTI Identifier:
1257743
Report Number(s):
SLAC-PUB--16555
Journal ID: ISSN 1434-6044
Grant/Contract Number:
AC02-76SF00515
Type:
Accepted Manuscript
Journal Name:
European Physical Journal. C, Particles and Fields
Additional Journal Information:
Journal Volume: 78; Journal Issue: 4; Journal ID: ISSN 1434-6044
Publisher:
Springer
Research Org:
SLAC National Accelerator Lab., Menlo Park, CA (United States)
Sponsoring Org:
USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS QCD; hadronic colliders; top physics