Search for dark matter particles in proton-proton collisions at √s = 8 TeV using the razor variables

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art%3A10.1007%2FJHEP12%282016%29088.pdf (1.9 MB)

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OA Location

http://link.springer.com/article/10.1007/JHEP12(2016)088

Author(s)

Khachatryan, V

Sirunyan, AM

Tumasyan, A

Adam, W

Asilar, E

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Type

Journal Article

Abstract

A search for dark matter particles directly produced in proton-proton collisions recorded by the CMS experiment at the LHC is presented. The data correspond to an integrated luminosity of 18.8 fb−1, at a center-of-mass energy of 8 TeV. The event selection requires at least two jets and no isolated leptons. The razor variables are used to quantify the transverse momentum balance in the jet momenta. The study is performed separately for events with and without jets originating from b quarks. The observed yields are consistent with the expected backgrounds and, depending on the nature of the production mechanism, dark matter production at the LHC is excluded at 90% confidence level for a mediator mass scale Λ below 1 TeV. The use of razor variables yields results that complement those previously published.

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Date Issued

2016-12-19

Date Acceptance

2016-11-21

Citation

Journal of High Energy Physics, 2016, 2016 (12)

URI

http://hdl.handle.net/10044/1/44929

DOI

https://www.dx.doi.org/10.1007/JHEP12(2016)088

ISSN

1029-8479

Publisher

Springer

Journal / Book Title

Journal of High Energy Physics

Volume

2016

Issue

12

Copyright Statement

© 2016 The Author(s). Open Access.
This article is distributed under the terms of the Creative Commons Attribution License (CC-BY 4.0 https://creativecommons.org/licenses/by/4.0/), which permits any use, distribution and reproduction in
any medium, provided the original author(s) and source are credited.

Identifier

http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000391823600001&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202

Subjects

Science & Technology

Physical Sciences

Physics, Particles & Fields

Physics

Hadron-Hadron scattering (experiments)

Supersymmetry

CRESST-II DETECTOR

MODEL

EXTENSION

NEUTRINO

GALAXIES

CLUSTERS

LHC

Nuclear & Particles Physics

01 Mathematical Sciences

02 Physical Sciences

Publication Status

Published

Article Number

ARTN 088