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Title: Tagging partially reconstructed objects with jet substructure

Abstract

Here, we present a new tagger which aims at identifying partially reconstructed objects, in which only some of the constituents are collected in a single jet. As an example, we also focus on top decays in which either part of the hadronically decaying W or the b jet is soft or falls outside of the top jet cone. Furthermore, we construct an observable to identify remnant substructure from the decay and employ aggressive jet grooming to reject QCD backgrounds. The tagger is complementary to existing ones and works well in the intermediate boost regime where jet substructure techniques usually fail. It is anticipated that a similar tagger can be used to identify non-QCD hadronic jets, such as those expected from hidden valleys.

Authors:
ORCiD logo [1];  [2];  [3]
  1. Harvard Univ., Cambridge, MA (United States). Dept. of Physics
  2. Tel Aviv Univ., Ramat Aviv (Israel). Raymond and Beverly Sackler School of Physics and Astronomy
  3. Univ. of California, Berkeley, CA (United States); Univ. of California, Berkeley, CA (United States). Berkeley Center for Theoretical Physics
Publication Date:
Research Org.:
Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Sponsoring Org.:
USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25); National Science Foundation (NSF)
OSTI Identifier:
1312047
Alternate Identifier(s):
OSTI ID: 1413728
Grant/Contract Number:  
AC02-05CH11231; PHY-1258729; SC003916
Resource Type:
Journal Article: Published Article
Journal Name:
Physics Letters. Section B
Additional Journal Information:
Journal Volume: 769; Journal Issue: C; Journal ID: ISSN 0370-2693
Publisher:
Elsevier
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; QCD jets; hadronic top decays; jet substructure; top tagging

Citation Formats

Freytsis, Marat, Volansky, Tomer, and Walsh, Jonathan R. Tagging partially reconstructed objects with jet substructure. United States: N. p., 2016. Web. doi:10.1016/j.physletb.2016.08.044.
Freytsis, Marat, Volansky, Tomer, & Walsh, Jonathan R. Tagging partially reconstructed objects with jet substructure. United States. doi:10.1016/j.physletb.2016.08.044.
Freytsis, Marat, Volansky, Tomer, and Walsh, Jonathan R. Wed . "Tagging partially reconstructed objects with jet substructure". United States. doi:10.1016/j.physletb.2016.08.044.
@article{osti_1312047,
title = {Tagging partially reconstructed objects with jet substructure},
author = {Freytsis, Marat and Volansky, Tomer and Walsh, Jonathan R.},
abstractNote = {Here, we present a new tagger which aims at identifying partially reconstructed objects, in which only some of the constituents are collected in a single jet. As an example, we also focus on top decays in which either part of the hadronically decaying W or the b jet is soft or falls outside of the top jet cone. Furthermore, we construct an observable to identify remnant substructure from the decay and employ aggressive jet grooming to reject QCD backgrounds. The tagger is complementary to existing ones and works well in the intermediate boost regime where jet substructure techniques usually fail. It is anticipated that a similar tagger can be used to identify non-QCD hadronic jets, such as those expected from hidden valleys.},
doi = {10.1016/j.physletb.2016.08.044},
journal = {Physics Letters. Section B},
number = C,
volume = 769,
place = {United States},
year = {Wed Aug 24 00:00:00 EDT 2016},
month = {Wed Aug 24 00:00:00 EDT 2016}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record at 10.1016/j.physletb.2016.08.044

Citation Metrics:
Cited by: 1 work
Citation information provided by
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