Searching in CMS open data for dimuon resonances with substantial transverse momentum
Abstract
We study dimuon events in of 7 TeV collisions, using CMS Open Data, and search for a narrow dimuon resonance with moderate mass (14–66 GeV) and substantial transverse momentum ( ). Applying dimuon cuts of 25 and 60 GeV, we explore two overlapping samples: one with isolated muons, and one with prompt muons without an isolation requirement. Using the latter sample requires information about detector effects and QCD backgrounds, which we obtain directly from the CMS Open Data. We present model-independent limits on the product of cross section, branching fraction, acceptance, and efficiencies. These limits are stronger, relative to a corresponding inclusive search without a cut, by factors of as much as 9. Our “ -enhanced” dimuon search strategy provides improved sensitivity to models in which a new particle is produced mainly in the decay of something heavier, as could occur, for example, in decays of the Higgs boson or of a TeV-scale top partner. An implementation of this method with the current 13 TeV data should improve the sensitivity to such signals further by roughly an order of magnitude.
- Authors:
- Publication Date:
- Research Org.:
- Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), High Energy Physics (HEP); Simons Foundation; European Research Council (ERC)
- OSTI Identifier:
- 1542687
- Alternate Identifier(s):
- OSTI ID: 1630640
- Grant/Contract Number:
- SC0011090; SC0013607; SC0012567; SC0013999
- Resource Type:
- Published Article
- Journal Name:
- Physical Review D
- Additional Journal Information:
- Journal Name: Physical Review D Journal Volume: 100 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
Cesarotti, Cari, Soreq, Yotam, Strassler, Matthew J., Thaler, Jesse, and Xue, Wei. Searching in CMS open data for dimuon resonances with substantial transverse momentum. United States: N. p., 2019.
Web. doi:10.1103/PhysRevD.100.015021.
Cesarotti, Cari, Soreq, Yotam, Strassler, Matthew J., Thaler, Jesse, & Xue, Wei. Searching in CMS open data for dimuon resonances with substantial transverse momentum. United States. https://doi.org/10.1103/PhysRevD.100.015021
Cesarotti, Cari, Soreq, Yotam, Strassler, Matthew J., Thaler, Jesse, and Xue, Wei. Tue .
"Searching in CMS open data for dimuon resonances with substantial transverse momentum". United States. https://doi.org/10.1103/PhysRevD.100.015021.
@article{osti_1542687,
title = {Searching in CMS open data for dimuon resonances with substantial transverse momentum},
author = {Cesarotti, Cari and Soreq, Yotam and Strassler, Matthew J. and Thaler, Jesse and Xue, Wei},
abstractNote = {We study dimuon events in 2.11fb-1 of 7 TeV pp collisions, using CMS Open Data, and search for a narrow dimuon resonance with moderate mass (14–66 GeV) and substantial transverse momentum (pT). Applying dimuon pT cuts of 25 and 60 GeV, we explore two overlapping samples: one with isolated muons, and one with prompt muons without an isolation requirement. Using the latter sample requires information about detector effects and QCD backgrounds, which we obtain directly from the CMS Open Data. We present model-independent limits on the product of cross section, branching fraction, acceptance, and efficiencies. These limits are stronger, relative to a corresponding inclusive search without a pT cut, by factors of as much as 9. Our “pT-enhanced” dimuon search strategy provides improved sensitivity to models in which a new particle is produced mainly in the decay of something heavier, as could occur, for example, in decays of the Higgs boson or of a TeV-scale top partner. An implementation of this method with the current 13 TeV data should improve the sensitivity to such signals further by roughly an order of magnitude.},
doi = {10.1103/PhysRevD.100.015021},
journal = {Physical Review D},
number = 1,
volume = 100,
place = {United States},
year = {2019},
month = {7}
}
https://doi.org/10.1103/PhysRevD.100.015021
Web of Science
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