Beyond the Standard Model with leptogenesis and neutrino data

In this short review I discuss how high energy (type I) seesaw models can be nicely embedded within grand-unified models and reproduce the observed matter-antimatter asymmetry with leptogenesis. In particular, after discussing general features and results in leptogenesis, I focus on $SO(10)$-inspired leptogenesis and on a particular solution, the strong thermal $SO(10)$-inspired solution, that provides an interesting way to understand neutrino mixing parameters: the non-vanishing reactor mixing angle, the emerging negative sign of $\sin\delta$ and the slight hints favouring normally ordered neutrino masses and an atmospheric mixing angle in the first octant. I also briefly discuss leptogenesis within two right-handed seesaw neutrino models. In this case a a third decoupled right-handed neutrino can provide a candidate for very heavy cold decaying dark matter produced from right-handed neutrino mixing with a mass in the TeV-EeV range and its decays would give a contribution to the IceCube high energy neutrino events in addition to an astrophysical component.Comment: 12 pages, 2 Figures; compendium of plenary talks given at Neutrino 2016, NuFact 2016 and IPA 2016; v2: Ref.'s adde

News on Leptogenesis

The possibility to explain the CMB measurement of the baryon asymmetry with leptogenesis results in a stringent bound on the neutrino masses such that [(m_1)^2+(m_2)^2+(m_3)^2]^(1/2) < 0.30 eV. We discuss the implications of such a bound for future experiments on the absolute neutrino mass scale.Comment: 12 pages, 4 figures included. Talk given at the Third Tropical Workshop: Neutrinos, Branes and Cosmology, 19-23 August 2002, San Juan, Puerto Rico. v2 references adde

The cosmological information on neutrino mixing

Cosmology provides interesting information on neutrino mixing models with sterile neutrinos. In this case non standard BBN effects can be relevant. We show how the recent measurement of the baryon content from the observations of CMB anisotropies together with the primordial nuclear abundances measurements can be used to constrain them. In particular four neutrino mixing models are potentially at variance with the cosmological observations. We also discuss the possible scenarios from future experiments.Comment: 5 pages, LaTeX, JHEP style, talk given at EPS HEP 2001, Budapest, Hungary, 12 - 18 July 200

A Study on Community Participation in Implementing Neighborhood Upgrading and Shelter Sector Project in Kelurahan Pontap, Palopo

City’s population growth will highly influence the increase of housing needs because housing is one of the basic necessities besides cloths and food. Apparently, this becomes serious problem when it is related to poor urban residents who are impelled to build squatter area close to working area even though they have to live in crowded living space. It is on this area that the infrastructures availability is limited. The residents’ low socio-economic condition prompts it to be a slum area. For this reason, one concrete and comprehensive alternative solution to handle urban slum settlement area is Neighborhood Upgrading and Shelter Sector Project (NUSSP) program. NUSSP program at Palopo city is started on 2006 to 2008. This program uses community participatory approach as the target of the policy and program. The implementation of NUSSP program at Kelurahan Pontap is the construction of slum area infrastructure such as environment path, alley, sanitation and clean water. This research aims to study the community’s participation in implementing the slum area development program at Kelurahan Pontap, Palopo city. The target research are the identification of slum area development program, the characteristic of the community at Kelurahan Pontap, the analysis of community participation in the slum settlement development program and to conclude the relation between the program implementation and community participation. The analysis method used in this research is descriptive analysis using qualitative approach in a form of words, not numbers. This research uses random sampling for the respondents of Kelurahan Pontap whose houses are categorized as slum. The conclusions are obtained from the targets through the infrastructure construction such as the building of environment path, MCK (public bathing, washing and toilet facilities) building and drainage. The community participation to support the infrastructure building is by contributing themselves such as their involvement on the program/ project planning and implementation that are carried out by the local community. The community participation is carried out in each RW (neighborhood), that is RW 1, RW 2, RW 3 and RW 4 which is supported by the influencing factors such as active involvement in meetings, giving idea or suggestion and involved in decision making at the planning phase. While the implementation phase is influenced by skill and power factor, the monitoring phase is influenced by the result and benefit. The recommendation given for the community at Kelurahan Pontap, Palopo city are a socialization and workshop for the community at RW 1, RW 2, RW 3 and RW 4 about the importance of education; community involvement to democratically make a decision in RW 3 and RW 4; socialization in each RW upon the importance of healthy living; other programs supporting community participation in creating environment quality, community-based sanitation quality improvement and so on; community encouragement to involve at their improvement of healthy life-style; community encouragement to involve in community organization in increasing community participation to upgrade and improve environment quality