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Title: Interaction networks for the identification of boosted H → $$b\overline b$$ decays

Abstract

We develop an algorithm based on an interaction network to identify high-transverse-momentum Higgs bosons decaying to bottom quark-antiquark pairs and distinguish them from ordinary jets that reflect the configurations of quarks and gluons at short distances. The algorithm's inputs are features of the reconstructed charged particles in a jet and the secondary vertices associated with them. Describing the jet shower as a combination of particle-to-particle and particle-to-vertex interactions, the model is trained to learn a jet representation on which the classification problem is optimized. The algorithm is trained on simulated samples of realistic LHC collisions, released by the CMS Collaboration on the CERN Open Data Portal. The interaction network achieves a drastic improvement in the identification performance with respect to state-of-the-art algorithms.

Authors:
ORCiD logo; ORCiD logo; ORCiD logo; ORCiD logo; ORCiD logo; ; ; ORCiD logo; ORCiD logo
Publication Date:
Research Org.:
Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States)
Sponsoring Org.:
USDOE Office of Science (SC), High Energy Physics (HEP); Kavli Foundation; NVIDIA; SuperMicro; European Research Council (ERC); Taylor W. Lawrence Research Fellowship; Mellon Mays Research Fellowship
OSTI Identifier:
1643742
Alternate Identifier(s):
OSTI ID: 1571809
Report Number(s):
arXiv:1909.12285; FERMILAB-PUB-19-492-CMS-E
Journal ID: ISSN 2470-0010; PRVDAQ; 012010
Grant/Contract Number:  
SC0011925; AC02-07CH11359; 772369
Resource Type:
Published Article
Journal Name:
Physical Review. D.
Additional Journal Information:
Journal Name: Physical Review. D. Journal Volume: 102 Journal Issue: 1; Journal ID: ISSN 2470-0010
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS

Citation Formats

Moreno, Eric A., Nguyen, Thong Q., Vlimant, Jean-Roch, Cerri, Olmo, Newman, Harvey B., Periwal, Avikar, Spiropulu, Maria, Duarte, Javier M., and Pierini, Maurizio. Interaction networks for the identification of boosted H → $b\overline b$ decays. United States: N. p., 2020. Web. doi:10.1103/PhysRevD.102.012010.
Moreno, Eric A., Nguyen, Thong Q., Vlimant, Jean-Roch, Cerri, Olmo, Newman, Harvey B., Periwal, Avikar, Spiropulu, Maria, Duarte, Javier M., & Pierini, Maurizio. Interaction networks for the identification of boosted H → $b\overline b$ decays. United States. https://doi.org/10.1103/PhysRevD.102.012010
Moreno, Eric A., Nguyen, Thong Q., Vlimant, Jean-Roch, Cerri, Olmo, Newman, Harvey B., Periwal, Avikar, Spiropulu, Maria, Duarte, Javier M., and Pierini, Maurizio. Tue . "Interaction networks for the identification of boosted H → $b\overline b$ decays". United States. https://doi.org/10.1103/PhysRevD.102.012010.
@article{osti_1643742,
title = {Interaction networks for the identification of boosted H → $b\overline b$ decays},
author = {Moreno, Eric A. and Nguyen, Thong Q. and Vlimant, Jean-Roch and Cerri, Olmo and Newman, Harvey B. and Periwal, Avikar and Spiropulu, Maria and Duarte, Javier M. and Pierini, Maurizio},
abstractNote = {We develop an algorithm based on an interaction network to identify high-transverse-momentum Higgs bosons decaying to bottom quark-antiquark pairs and distinguish them from ordinary jets that reflect the configurations of quarks and gluons at short distances. The algorithm's inputs are features of the reconstructed charged particles in a jet and the secondary vertices associated with them. Describing the jet shower as a combination of particle-to-particle and particle-to-vertex interactions, the model is trained to learn a jet representation on which the classification problem is optimized. The algorithm is trained on simulated samples of realistic LHC collisions, released by the CMS Collaboration on the CERN Open Data Portal. The interaction network achieves a drastic improvement in the identification performance with respect to state-of-the-art algorithms.},
doi = {10.1103/PhysRevD.102.012010},
journal = {Physical Review. D.},
number = 1,
volume = 102,
place = {United States},
year = {Tue Jul 28 00:00:00 EDT 2020},
month = {Tue Jul 28 00:00:00 EDT 2020}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record
https://doi.org/10.1103/PhysRevD.102.012010

Citation Metrics:
Cited by: 29 works
Citation information provided by
Web of Science

Figures / Tables:

FIG. 1 FIG. 1: Pictorial representation of ordinary quark and gluon jets (top left), b jets (top center), and boosted-jet topologies, emerging from high-pT W and Z bosons (top right), Higgs bosons (bottom left), and top quarks (bottom right) decaying to all-quark final states.

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