کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1852001 | 1033918 | 2010 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Neutrino masses from fine tuning
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
فیزیک هسته ای و انرژی بالا
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چکیده انگلیسی
We present a new approach for generating tiny neutrino masses. The Dirac neutrino mass matrix gets contributions from two new Higgs doublets with their vevs at the electroweak (EW) scale. Neutrino masses are tiny not because of tiny Yukawa couplings, or very heavy (â¼1014 GeV) right-handed neutrinos. They are tiny because of a cancellation in the Dirac neutrino mass matrix (fine tuning). After fine tuning to make the Dirac neutrino mass matrix at the 10â4 GeV scale, light neutrino masses are obtained in the correct scale via the see-saw mechanism with the right-handed neutrino at the EW scale. The proposal links neutrino physics to collider physics. The Higgs search strategy is completely altered. For a wide range of Higgs masses, the Standard Model Higgs decays dominantly to νLNR mode giving rise to the final state ν¯νb¯b, or ν¯νÏ+Ïâ. This can be tested at the LHC, and possibly at the Tevatron.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physics Letters B - Volume 693, Issue 3, 4 October 2010, Pages 274-280
Journal: Physics Letters B - Volume 693, Issue 3, 4 October 2010, Pages 274-280
نویسندگان
B.N. Grossmann, Z. Murdock, S. Nandi,