Search for narrow resonances and quantum black holes in inclusive and b-tagged dijet mass spectra from pp collisions at √s=7 TeV

The CMS collaboration

Araştırma sonucu: Dergiye katkıMakalebilirkişi

58 Atıf (Scopus)

Özet

A search for narrow resonances and quantum black holes is performed in inclusive and b-tagged dijet mass spectra measured with the CMS detector at the LHC. The data set corresponds to 5 fb-1 of integrated luminosity collected in pp collisions at √s=7 TeV. No narrow resonances or quantum black holes are observed. Model-independent upper limits at the 95% confidence level are obtained on the product of the cross section, branching fraction into dijets, and acceptance for three scenarios: decay into quark-quark, quark-gluon, and gluon-gluon pairs. Specific lower limits are set on the mass of string resonances (4.31 TeV), excited quarks (3.32 TeV), axigluons and colorons (3.36 TeV), scalar color-octet resonances (2.07 TeV), E6 diquarks (3.75 TeV), and on the masses of W′ (1.92 TeV) and Z′ (1.47 TeV) bosons. The limits on the minimum mass of quantum black holes range from 4 to 5.3 TeV. In addition, b-quark tagging is applied to the two leading jets and upper limits are set on the production of narrow dijet resonances in a model-independent fashion as a function of the branching fraction to b-jet pairs.[Figure not available: see fulltext.]

Orijinal dilİngilizce
Makale numarası13
DergiJournal of High Energy Physics
Hacim2013
Basın numarası1
DOI'lar
Yayın durumuYayınlandı - 2013
Harici olarak yayınlandıEvet

Finansman

FinansörlerFinansör numarası
EklenmezST/H00081X/2
National Science Foundation1151640, 0969555, 1205960, 1211067
Seventh Framework Programme261323
Science and Technology Facilities CouncilST/L00609X/1, ST/J004901/1, ST/K003542/1, ST/K003844/1, ST/J004871/1, PP/E002803/1, ST/H000925/2, ST/H000925/1, ST/J005479/1, ST/K001531/1, ST/I000305/1, ST/I505572/1, ST/I005912/1, ST/J005665/1, ST/K001639/1, ST/L005603/1, ST/M002020/1, ST/F007094/1, ST/I003622/1
Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung123501

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    Search for narrow resonances and quantum black holes in inclusive and b-tagged dijet mass spectra from pp collisions at √s=7 TeV' araştırma başlıklarına git. Birlikte benzersiz bir parmak izi oluştururlar.

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