Search for quark contact interactions and extra spatial dimensions using dijet angular distributions in proton-proton collisions at root s=8 TeVopen access
- Authors
- Khachatryan, V; Sirunyan, AM; Tumasyan, A; Adam, W; Bergauer, T; Dragicevic, M; Ero, J; Friedl, M; Fruhwirth, R; Kim, Tae Jeong
- Issue Date
- May-2015
- Publisher
- ELSEVIER SCIENCE BV
- Keywords
- CMS; Contact interactions; Electroweak corrections; Extra dimensions; Physics; QCD
- Citation
- PHYSICS LETTERS B, v.746, pp.79 - 99
- Indexed
- SCIE
SCOPUS
- Journal Title
- PHYSICS LETTERS B
- Volume
- 746
- Start Page
- 79
- End Page
- 99
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/142985
- DOI
- 10.1016/j.physletb.2015.04.042
- ISSN
- 0370-2693
- Abstract
- A search is presented for quark contact interactions and extra spatial dimensions in proton-proton collisions at root s = 8 TeV using dijet angular distributions. The search is based on a data set corresponding to an integrated luminosity of 19.7 fb(-1) collected by the CMS detector at the CERN LHC. Dijet angular distributions are found to be in agreement with the perturbative QCD predictions that include electroweak corrections. Limits on the contact interaction scale from a variety of models at next-to-leading order in QCD corrections are obtained. A benchmark model in which only left-handed quarks participate is excluded up to a scale of 9.0 (11.7) TeV for destructive (constructive) interference at 95% confidence level. Lower limits between 5.9 and 8.4 TeV on the scale of virtual graviton exchange are extracted for the Arkani-Hamed-Dimopoulos-Dvali model of extra spatial dimensions.
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Collections - 서울 자연과학대학 > 서울 물리학과 > 1. Journal Articles
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