کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5495519 | 1528794 | 2016 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Dilepton bounds on left-right symmetry at the LHC run II and neutrinoless double beta decay
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موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
فیزیک هسته ای و انرژی بالا
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
In the light of the new 13 TeV dilepton data set with 3.2Â fbâ1 integrated luminosity from the ATLAS Collaboration, we derive limits on the Zâ² mass in the context of left-right symmetric models and exploit the complementarity with dijet and lljj data, as well as neutrinoless double beta decay. We keep the ratio of the left- and right-handed gauge coupling free in order to take into account different patterns of left-right symmetry breaking. By combining the dielectron and dimuon data we can exclude Zâ² masses below 3Â TeV for gR=gL, and for gRâ¼1 we rule out masses up to â¼4Â TeV. Those comprise the strongest direct bounds on the Zâ² mass from left-right models up to date. We show that in the usual plane of right-handed neutrino and charged gauge boson mass, dilepton data can probe a region of parameter space inaccessible to neutrinoless double beta decay and lljj studies. Lastly, through the mass relation between WR and Zâ² we present an indirect bound on the lifetime of neutrinoless double beta decay using dilepton data. Our results prove that the often ignored dilepton data in the context of left-right models actually provide important complementary limits.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physics Letters B - Volume 762, 10 November 2016, Pages 190-195
Journal: Physics Letters B - Volume 762, 10 November 2016, Pages 190-195
نویسندگان
Manfred Lindner, Farinaldo S. Queiroz, Werner Rodejohann,