Search for new phenomena in events with high jet multiplicity and low missing transverse momentum in proton-proton collisions at √s=8TeV

被引：8
|
作者：
The CMS Collaboration
机构：
[1] CERN, Geneva, Switzerland
来源：
PHYSICS LETTERS B | 2017年 / 770卷
基金：
美国国家科学基金会; 巴西圣保罗研究基金会; 欧洲研究理事会; 芬兰科学院;
关键词：
CMS; Physics; Exotics; Jets; Strong dynamics; Axigluon; DIJET ANGULAR-DISTRIBUTIONS; QUARK COMPOSITENESS; MASS-SPECTRUM; COLLIDER; BOSONS;
D O I：
10.1016/j.physletb.2017.01.073
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
A dedicated search is presented for new phenomena in inclusive 8- and 10-jet final states with low missing transverse momentum, with and without identification of jets originating from b quarks. The analysis is based on data from proton proton collisions corresponding to an integrated luminosity of 19.7 fb(-1) collected with the CMS detector at the LHC at root s = 8 TeV. The dominant multijet background expectations are obtained from low jet multiplicity control samples. Data agree well with the standard model background predictions, and limits are set in several benchmark models. Colorons (axigluons) with masses between 0.6 and 0.75 (up to 1.15)TeV are excluded at 95% confidence level. Similar exclusion limits for gluinos in R-parity violating supersymmetric scenarios are from 0.6 up to 1.1 TeV. These results comprise the first experimental probe of the coloron and axigluon models in multijet final states. (C) 2017 The Author(s). Published by Elsevier B.V.
引用
收藏
页码：257 / 267
页数：11
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