{"paper":{"title":"Bounds on neutrino masses from baryogenesis in thermal and non-thermal scenarios","arxiv_id":"hep-ph/0602201","primary_cat":"hep-ph","submitted_at":"2006-02-22T05:02:01+00:00","version_compiled":"v1"},"notice":"Every quoted sentence is the authors' text from the arXiv listing abstract. Labels and probabilities are the outputs of classifier-1.13-20260917 on the question bank abstract-p1-20260923, exactly as returned. No sentence in this record was written by a language model.","schema":"pith.compiled-record/v0","status":"compiled","abstract":{"source":"arXiv listing abstract v1","sentences":[{"i":0,"p":1.0,"id":"s0","own":false,"role":"background","text":"Baryogenesis via leptogenesis is an attractive scenario that links the physics of right handed neutrino sector with the low energy neutrino data.","hedge":{"p":0.85,"label":"asserted"},"own_p":0.06,"main_claim_p":0.04,"quantitative":false,"quantitative_p":0.03,"role_probabilities":{"gap":0.0,"method":0.0,"result":0.0,"background":1.0,"limitation":0.0,"future_work":0.0,"contribution":0.0,"interpretation":0.0}},{"i":1,"p":0.99,"id":"s1","own":true,"role":"contribution","text":"In the light of current neutrino oscillation data we studied the bound on the mass scale ($M_1$) of lightest right handed neutrino ($N_1$) as well as their mass hierarchy ($M_2/M_1$ and $M_3/M_1$) from the leptogenesis constraint which we discussed in two different parts of the thesis.","hedge":{"p":0.85,"label":"asserted"},"own_p":0.9,"main_claim_p":0.14,"quantitative":false,"quantitative_p":0.16,"role_probabilities":{"gap":0.0,"method":0.0,"result":0.0,"background":0.01,"limitation":0.0,"future_work":0.0,"contribution":0.99,"interpretation":0.0}},{"i":2,"p":0.9,"id":"s2","own":true,"role":"contribution","text":"In part-I, we studied the canonical leptogenesis in a {\\it thermal} scenario and hence the bound on $M_1$.","hedge":{"p":0.96,"label":"asserted"},"own_p":0.9,"main_claim_p":0.04,"quantitative":false,"quantitative_p":0.07,"role_probabilities":{"gap":0.0,"method":0.1,"result":0.0,"background":0.0,"limitation":0.0,"future_work":0.0,"contribution":0.9,"interpretation":0.0}},{"i":3,"p":1.0,"id":"s3","own":true,"role":"result","text":"It is shown that the mass scale of $N_1$ must satisfy the constraint $M_1\\geq 10^8$ GeV in order to produce the adequate lepton asymmetry.","hedge":{"p":1.0,"label":"asserted"},"own_p":0.82,"main_claim_p":0.29,"quantitative":true,"quantitative_p":0.99,"role_probabilities":{"gap":0.0,"method":0.0,"result":1.0,"background":0.0,"limitation":0.0,"future_work":0.0,"contribution":0.0,"interpretation":0.0}},{"i":4,"p":0.83,"id":"s4","own":true,"role":"contribution","text":"We then led to propose a model where this bound can be relaxed to TeV scale.","hedge":{"p":0.42,"label":"asserted"},"own_p":0.82,"main_claim_p":0.15,"quantitative":true,"quantitative_p":0.78,"role_probabilities":{"gap":0.0,"method":0.03,"result":0.11,"background":0.0,"limitation":0.0,"future_work":0.01,"contribution":0.83,"interpretation":0.02}},{"i":5,"p":0.97,"id":"s5","own":true,"role":"contribution","text":"In part-II, we studied the formation and evolution of topological defects which are non-thermal objects and are expected to be formed during the early Universe phase transitions.","hedge":{"p":0.5,"label":"hedged_possibility"},"own_p":0.83,"main_claim_p":0.03,"quantitative":false,"quantitative_p":0.04,"role_probabilities":{"gap":0.0,"method":0.02,"result":0.0,"background":0.01,"limitation":0.0,"future_work":0.0,"contribution":0.97,"interpretation":0.0}},{"i":6,"p":0.97,"id":"s6","own":true,"role":"contribution","text":"In particular, we considered $B-L$ cosmic strings and their effect on leptogenesis and hence the bound on the mass scale of $N_1$.","hedge":{"p":0.7,"label":"asserted"},"own_p":0.8,"main_claim_p":0.09,"quantitative":false,"quantitative_p":0.08,"role_probabilities":{"gap":0.0,"method":0.03,"result":0.0,"background":0.0,"limitation":0.0,"future_work":0.0,"contribution":0.97,"interpretation":0.0}},{"i":7,"p":1.0,"id":"s7","own":true,"role":"result","text":"It is shown that for the $B-L$ symmetry breaking scale $\\eta_{B-L}>10^{11}$GeV, in certain parameter space, the cosmic strings make a more dominant contribution than thermal 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