Yayınlanmış 1 Ocak 2010
| Sürüm v1
Dergi makalesi
Açık
Search for Quark Compositeness with the Dijet Centrality Ratio in pp Collisions at root s=7 TeV
Oluşturanlar
- 1. Yerevan Phys Inst, Yerevan 375036, Armenia
- 2. OeAW, Inst Hochenergiephys, Vienna, Austria
Açıklama
A search for quark compositeness in the form of quark contact interactions, based on hadronic jet pairs (dijets) produced in proton-proton collisions at root s = 7 eV, is described. The data sample of the study corresponds to an integrated luminosity of 2.9 pb(-1) collected with the CMS detector at the LHC. The dijet centrality ratio, which quantifies the angular distribution of the dijets, is measured as a function of the invariant mass of the dijet system and is found to agree with the predictions of the standard model. A statistical analysis of the data provides a lower limit on the energy scale of quark contact interactions. The sensitivity of the analysis is such that the expected limit is 2.9 TeV; because the observed value of the centrality ratio at high invariant mass is below the expectation, the observed limit is 4.0 TeV at the 95% confidence level.
Dosyalar
bib-0581e624-e813-48ff-b2e5-77c1449e011f.txt
Dosyalar
(401 Bytes)
| Ad | Boyut | Hepisini indir |
|---|---|---|
|
md5:e82045a5c2293b0d9dc0ed8f413508f5
|
401 Bytes | Ön İzleme İndir |