کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
8190539 1528856 2012 19 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Search for contact interactions in dilepton events from pp collisions at s=7 TeV with the ATLAS detector
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم فیزیک هسته ای و انرژی بالا
پیش نمایش صفحه اول مقاله
Search for contact interactions in dilepton events from pp collisions at s=7 TeV with the ATLAS detector
چکیده انگلیسی
This Letter presents a search for contact interactions in the dielectron and dimuon channels using data from proton-proton collisions produced by the LHC at s=7 TeV and recorded by the ATLAS detector. The data sample, collected in 2011, corresponds to an integrated luminosity of 1.08 and 1.21 fb−1 in the e+e− and μ+μ− channels, respectively. No significant deviations from the standard model are observed. Using a Bayesian approach with a prior flat in 1/Λ2, the following 95% CL lower limits are placed on the energy scale of ℓℓqq contact interactions: Λ−>10.1 TeV (Λ+>9.4 TeV) in the electron channel and Λ−>8.0 TeV (Λ+>7.0 TeV) in the muon channel for constructive (destructive) interference in the left-left isoscalar contact interaction model. Limits are also provided for a prior flat in 1/Λ4.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physics Letters B - Volume 712, Issues 1–2, 30 May 2012, Pages 40-58
نویسندگان
, , , , , , , , , , , , , , , , , ,