1. 1 J W F Valle IFIC/CSIC – U Valencia Neutrinos and dark matter DSU, Beijing, Sept. 2011 http://astroparticles.es/

2. The SM picture of 3 generations of fermions interacting by SU3XSU2XU1 gauge boson exchange needs amendment due to Do these have a common origin? Yes they may … - discovery of neutrino oscillations - evidence for dark matter

3. 3 Schechter & JV PRD22 (1980) 2227Schechter & JV PRD22 (1980) 2227 & PDG LEPTON MIXING MATRIX adopted in oscillation analyses Presence of phases intrinsic to majorana nature of neutrinos (cf KM) Do not affect (standard) oscillations but Crucial to describe L-violating processesCrucial to describe L-violating processes (in general also non-standard CC & NC, which may induce NSI & LFV effects) Rodejohann, JV arXiv:1108.3484

4. 44 Schwetz et al ArXiv:1108.1376 (NJP) & NJP 13 (2011) 063004 Homestake, SAGE GALLEX/GNO, SK-III SNO-leta, SSM Borexino KamLAND (180 Km)‏ K2K (250 Km), T2K‏ MINOS (735 Km)‏ SK-III NEUTRINO OSCILLATIONS STATUS 2011

5. 5 Schwetz et al, ArXiv:1108.1376 (NJP in press) New J.Phys. 13 (2011) 063004 see also reviews Maltoni et al, NJP 6 (2004) 122, Schwetz et al, NJP 10 (2008) 113011, Fogli et al 2006, Gonzalez-Garcia et al

6. 6 scale mechanism Schechter-Valle 80/82 Minkowski 77 Gellman Ramond Slansky 80 Glashow, Yanagida 79 Mohapatra Senjanovic 80 Schechter-Valle, 80 & 828082 Lazarides Shafi Weterrich 81 flavor structure LOW-SCALE SEESAW Mohapatra-Valle 86 fermion exchange TYPE I Scalar-exchange TYPE II ORIGIN OF NEUTRINO MASS & SEESAW

7. 77 CHARGED LEPTONS NEUTRINOS Sectors are separated by an extra Abelian Zn Babu et al PLB552 (2003) 207 Hirsch et al PRD69 (2004) 093006 A4

8. 8 NON-ABELIAN FLAVOR SYMMETRIES Babu, Ma, Valle PLB552 (2003) Altarelli, Feruglio NPB72 (2005) Hirsch, Morisi, Valle PRD78 & D79 (2008) & PLB679 (2009) 454 Hagedorn, Molinaro, Petcov (2009) Ibanez, Morisi, Valle, PRD80 (2009) Lam PRL101 Bazzocchi, Morisi, PRD80 Feruglio, Hagedorn, Lin, Merlo (2007) Carr, Frampton (2007)‏ Aranda, Carone, Lebed PLB474 Grimus, Lavoura, JHEP0904 Mohapatra, Nasri, Yu, PLB627 Mondragón, Mondragón, Peinado Medeiros, King, Ross PLB648 Ishimori,Kobayashi,Ohki,Okada,Shimizu&Tanimoto arXiv:1003.3552 A4 S3 S4 T' D27....

9. NH VERSUS IH Hirsch et al, PLB679:454 (2009 )‏ TESTING NEUTRINO SPECTRA WITH DBD Flavor sensitivity SBD & Cosmology …

10. 10 PRD78:093007 (2008)‏ PRL 99 (2007) 151802, PRD82 (2010) 073008 PRD72, 091301 (2005)‏ A4 FLAVOR SYMMETRY & DBD

11. 11 0-nu DBD MAJORANA The significance of Neutrino-less Double Beta Decay

12. neutrinos may be relevant for DM 12 Dark matter - connection

13. 13 Neutrinos masses may change the SUSY spectrum : e.g. in inverse seesaw one may have SNEUTRINO-like DM Arina & al PRL101 (2008) 161802 Bazzocchi, Cerdeno, Munoz, J.V., PRD81:051701,2010

14. DM STABILIZED BY FLAVOUR SYM. EXPLAINS NEUTRINO MIXING BROKEN TO Z2 SYMMETRY DIRECT DM DETECTION

15. Majoron decaying dark matter Berezinsky et al PLB318 (1993) 360, PRD57( 1998) 147 Lattanzi & Valle, PRL99 (2007) 121301 Consistency with CMB Lattanzi & Valle, PRL99 (2007) 121301 Gravity DM not strictly stable Coleman 88, Kallosh, Linde, Susskind, Nelson, Seiberg,...

16. 16 Esteves et al, PRD 82, 073008 (2010) TYPE-II SEESAW MAJORON DECAYING-DM extend to higher DM mass LSS simulations Bazzocchi & al JCAP 0808 (2008) 013 XENIA arXiv:0906.1788 16

17. 17 sneutrino Masiero & Valle, PLB251 (1990) 273 Bhattacharyya & Pal, PRD82 (2010) 055013 Diaz et al PRD68 (2003) 013009, PRD62 (2000) 113008PRD68 (2003) 013009PRD62 (2000) 113008 PRD65 (2002) 119901; PRD61 (2000) 071703 sneutrino Hall & Suzuki, Ross & JV 85, Ellis et al, 85, Santamaria JV,... SUSY ATM SCALE SUSY-SEESAW SOLAR SCALE RADIATIVE SUSY ORIGIN OF NU-MASS IF GRAVITINO, CAN ACT AS DM Variant models: munu-MSSM (Muñoz)

18. Gravitino LSP as a decaying dark matter decays suppressed by Planck mass & smallness of m-nu/RPV BRpV chosen consistent with neutrino osc. data excluded by gamma-line searches: Egret & Fermi-LAT Band consistent with Susy searches Restrepo et al 1109.0512 Vertongen & Weniger

19. Restrepo, Taoso, JV, Zapata 1109.0512 ALLOWED by gravitino relic abundance, Fermi constraints, neutrino physics, collider bounds

20. 20 neutralino NLSP decays dominantly through RpV channels De Campos et al PRD82 (2010) 075002 JHEP 0805:048, 2008. PROBING AT LHC

21. NEUTRINOS – DARK MASS CONNECTION ‏ - sneutrino-like DM in inverse seesaw - DM stabilized by neutrino flavor symmetry - majoron as Decaying DARK MATTER - gravitino as Decaying DARK MATTER in BRPV OSCILLATIONS MAINLY ROBUST ORIGIN OF NEUTRINO MASS & PATTERN OF MIXING REMAIN A MISTERY NEUTRINO PROPERTIES MAY BE TESTABLE AT LHC DISPLACED VERTEX searches probe neutrino mass scale LSP DECAY PATTERN probes neutrino mixing SUMMARY

22. 22 THE END THANK YOU