تقرير
Is leptogenesis falsifiable at LHC?
| العنوان: | Is leptogenesis falsifiable at LHC? |
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| المؤلفون: | Frère, J. -M., Hambye, T., Vertongen, G. |
| المصدر: | JHEP 0901:051,2009 |
| سنة النشر: | 2008 |
| المجموعة: | Astrophysics High Energy Physics - Phenomenology |
| مصطلحات موضوعية: | High Energy Physics - Phenomenology, Astrophysics - Cosmology and Extragalactic Astrophysics |
| الوصف: | It is well known that the leptogenesis mechanism offers an attractive possibility to explain the baryon asymmetry of the universe. Its particular robustness however comes with one major difficulty: it will be very hard if not impossible to test experimentally in a foreseeable future, as most of the mechanics typically takes place at high energy or results from suppressed interactions, without unavoidable low-energy implications. An alternate approach is taken by asking: can it be at least falsified? We show that possible discoveries at current and future colliders, most notably that of right-handed gauge interactions, would indeed forbid at least the "canonical" leptogenesis mechanisms, namely those based on right-handed neutrino decay. General lower bounds for successful leptogenesis on the mass of the right-handed gauge boson W_R are given. Other possibilities to falsify leptogenesis, including from the observation of a Z', are also considered. Comment: 22 pages ; v3: discussion about resonant leptogenesis case added ; matches JHEP published version |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.1088/1126-6708/2009/01/051 |
| URL الوصول: | http://arxiv.org/abs/0806.0841 |
| رقم الأكسشن: | edsarx.0806.0841 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.1088/1126-6708/2009/01/051 |
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