BROWSE

Related Scientist

Researcher

박명훈
순수물리이론 연구단
more info

Tagging a jet from a dark sector with jet substructures at colliders

Cited 0 time in webofscience Cited 0 time in scopus
26 Viewed 3 Downloaded
Title
Tagging a jet from a dark sector with jet substructures at colliders
Author(s)
Myeonghun Park; Mengchao Zhang
Publication Date
2019-12
Journal
PHYSICAL REVIEW D, v.100, no.11, pp.115009 -
Publisher
AMER PHYSICAL SOC
Abstract
The phenomenology of the dark sector is complicated if the dark sector is charged under a confined hidden gauge group. In such a kind of model, a dark parton produced at a high-energy collider showers and hadronizes to a cluster of dark mesons. Dark mesons then decay to visible particles and produce a jetlike signal, which is called a "dark jet" in this work. Collider signal of a dark jet depend on the property of dark mesons. For example, a finite lifetime of a dark meson would provide a displaced vertex or displaced track; thus, one can use these displaced objects to tag a dark jet. However, if the lifetime of a dark meson is collider negligible (too short to manifest a displaced vertex), it would be difficult to distinguish a dark jet from standard model QCD jets. In this work, we propose a new tagging strategy to identify dark jets from QCD backgrounds. This strategy is based on jet-substructure analysis. We study various jet-substructure variables and find out variables with good discrimination ability. Our result shows that by combining multiple jet-substructure variables one could distinguish dark jets from QCD background and thus enhance the sensitivity of the dark sector search at a collider. c.Published by the American Physical Society
URI
https://pr.ibs.re.kr/handle/8788114/6713
ISSN
2470-0010
Appears in Collections:
Center for Fundamental Theory(순수물리이론 연구단) > Journal Papers (저널논문)
Files in This Item:
Tagging a jet from a dark sector with jet substructures at colliders.pdfDownload

qrcode

  • facebook

    twitter

  • Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.
해당 아이템을 이메일로 공유하기 원하시면 인증을 거치시기 바랍니다.

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

Browse