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Title: Remarks on the Z Drell-Yan cross section

Abstract

Many extensions of the standard model contain an extra $$U(1{)}^{{'}}$$ gauge group with a heavy $${Z}^{{'}}$$ gauge boson. Perhaps the most clear signal for such a $${Z}^{{'}}$$ would be a resonance in the invariant mass spectrum of the lepton pairs to which it decays. In the absence of such a signal, experiments can set limits on the couplings of such a $${Z}^{{'}}$$, using a standard formula from theory. We repeat its derivation and find that, unfortunately, the standard formula in the literature is a factor of 8 too small. We briefly explore the implication for existing experimental searches and encourage the high-energy physics community to reexamine analyses that have used this formula.

Authors:
;
Publication Date:
Research Org.:
Wayne State Univ., Detroit, MI (United States)
Sponsoring Org.:
USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
OSTI Identifier:
1434179
Alternate Identifier(s):
OSTI ID: 1498893
Grant/Contract Number:  
SC0007983
Resource Type:
Published Article
Journal Name:
Physical Review D
Additional Journal Information:
Journal Name: Physical Review D Journal Volume: 97 Journal Issue: 7; Journal ID: ISSN 2470-0010
Publisher:
American Physical Society
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; extensions of gauge sector

Citation Formats

Paz, Gil, and Roy, Joydeep. Remarks on the Z ′ Drell-Yan cross section. United States: N. p., 2018. Web. doi:10.1103/PhysRevD.97.075025.
Paz, Gil, & Roy, Joydeep. Remarks on the Z ′ Drell-Yan cross section. United States. doi:10.1103/PhysRevD.97.075025.
Paz, Gil, and Roy, Joydeep. Fri . "Remarks on the Z ′ Drell-Yan cross section". United States. doi:10.1103/PhysRevD.97.075025.
@article{osti_1434179,
title = {Remarks on the Z ′ Drell-Yan cross section},
author = {Paz, Gil and Roy, Joydeep},
abstractNote = {Many extensions of the standard model contain an extra $U(1{)}^{{'}}$ gauge group with a heavy ${Z}^{{'}}$ gauge boson. Perhaps the most clear signal for such a ${Z}^{{'}}$ would be a resonance in the invariant mass spectrum of the lepton pairs to which it decays. In the absence of such a signal, experiments can set limits on the couplings of such a ${Z}^{{'}}$, using a standard formula from theory. We repeat its derivation and find that, unfortunately, the standard formula in the literature is a factor of 8 too small. We briefly explore the implication for existing experimental searches and encourage the high-energy physics community to reexamine analyses that have used this formula.},
doi = {10.1103/PhysRevD.97.075025},
journal = {Physical Review D},
number = 7,
volume = 97,
place = {United States},
year = {2018},
month = {4}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record
DOI: 10.1103/PhysRevD.97.075025

Citation Metrics:
Cited by: 1 work
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Figures / Tables:

Figure 1 Figure 1: Left-hand side: Our cu − cd exclusion plot based on the D0 data [20] and Eq. (10). Right-hand side: Reference [10] cu − cd exclusion plot based on the D0 data [20] and Eq. (1).

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