Search for new physics in dijet angular distributions using proton-proton collisions at s√=13TeVs=13TeV and constraints on dark matter and other models; The European Physical Journal C; Vol. 78, iss. 9

Search for new physics in dijet angular distributions using proton-proton collisions at s√=13TeVs=13TeV and constraints on dark matter and other models; The European Physical Journal C; Vol. 78, iss. 9

Détails bibliographiques
Parent link:The European Physical Journal C: Scientific Journal
Vol. 78, iss. 9.— 2018.— [789, 26 р.,]
Collectivité auteur: Национальный исследовательский Томский политехнический университет Исследовательская школа физики высокоэнергетических процессов
Autres auteurs: Sirunyan А. М., Tumasyan A. R., Adam W. Wolfgang, Ambrogi F. Federico, Asilar E. Ece, Bergauer T. Thomas, Babaev A. A. Anton Anatoljevich
Résumé:Title screen
A search is presented for physics beyond the standard model, based on measurements of dijet angular distributions in proton-proton collisions at s√=13TeVs=13TeV. The data collected with the CMS detector at the LHC correspond to an integrated luminosity of 35.9fb−1fb−1. The observed distributions, corrected to particle level, are found to be in agreement with predictions from perturbative quantum chromodynamics that include electroweak corrections. Constraints are placed on models containing quark contact interactions, extra spatial dimensions, quantum black holes, or dark matter, using the detector-level distributions. In a benchmark model where only left-handed quarks participate, contact interactions are excluded at the 95% confidence level up to a scale of 12.8 or 17.5TeV, for destructive or constructive interference, respectively. The most stringent lower limits to date are set on the ultraviolet cutoff in the Arkani-Hamed-Dimopoulos-Dvali model of extra dimensions. In the Giudice-Rattazzi-Wells convention, the cutoff scale is excluded up to 10.1TeV. The production of quantum black holes is excluded for masses below 5.9 and 8.2TeV, depending on the model. For the first time, lower limits between 2.0 and 4.6TeVare set on the mass of a dark matter mediator for (axial-)vector mediators, for the universal quark coupling gq=1.0gq=1.0.
Langue:anglais
Publié: 2018
Sujets:
электронный ресурс
труды учёных ТПУ
physics
vector boson fusion
electroweak interaction
cross section
физика
поперечное сечение
Accès en ligne:https://doi.org/10.1140/epjc/s10052-018-6242-x
Format: MixedMaterials Électronique Chapitre de livre
KOHA link:https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=661254

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