Author ORCID Identifier

Stephen P. Martin: https://orcid.org/0000-0002-4560-0216

Publication Title

Physical Review D

ISSN

24700010

E-ISSN

24700029

Document Type

Article

Abstract

We study the interference between the amplitudes for gg→X→gg, where X is a new heavy digluon resonance, and the QCD background gg→gg, at the Large Hadron Collider. The interference produces a large low-mass tail and a deficit of events above the resonance mass, compared to the naive pure-resonance peak. For a variety of different resonance quantum numbers and masses, we evaluate the signal-background interference contribution at leading order, including showering, hadronization, and detector effects. The resulting new physics dijet mass distribution may have a shape that appears, after QCD background fitting and subtraction, to resemble an enhanced peak, a shelf, a peak/dip, or even a pure dip. We argue that the true limits on new digluon resonances are likely to differ significantly from the limits obtained when interference is neglected, especially if the branching ratio to gg is less than 1.

Publication Date

7-16-2020

DOI

10.1103/PhysRevD.102.015016

Keywords

assessment, concept map, education, metabolism, postsecondary

Fulltext File with Record

1

Department

Department of Physics

Rights Statement

Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. Funded by SCOAP3.

Download

Share

COinS