1. R. Lazauskas (SPhN Saclay), C. Volpe R. Lazauskas (SPhN Saclay), C. Volpe (IPN Orsay) Some aspects of neutrino interaction studies using beta beams SUPERNOVA ATMOSPHERE SUN,REACTOR ACCELERATORS 10 50 1001000 (MeV) 500 -Energy Neutrinos probe matter over a wide energy range -nucleus interaction studies, for: -nucleus interaction studies, for: - a better understanding of the nuclear excitations involved, - neutrino experiments (e.g. knowledge of detector response), - nuclear astrophysics (nucleosynthesis of heavy elements). -properties to learn: -properties to learn: - mass hierarchy - mixing angle  13 - Majorana or Dirac nature? - CP violation (phase  ) - magnetic moment - decay, … Introduction

2. R. Lazauskas (SPhN Saclay), C. Volpe R. Lazauskas (SPhN Saclay), C. Volpe (IPN Orsay) Some aspects of neutrino interaction studies using beta beams Experimental data is very scarce ( D and 56 F, 12 C). Theory is complicated, needs control*. Getting precise predictions in the low-energy range (20-100 MeV) is a challenging task. As example the discrepancies (exp/th) for - 12 C and (between calculations) for - 208 Pb. *see eg. Brown, Hayes, Kolbe, Fuller, Haxton, Jachowitz, Kubodera, Langanke, Martinez- Pinedo, Mintz, McLaughlin, Oset, Pourkaviani, Vogel, Volpe, Singh, Towner, etc..

3. R. Lazauskas (SPhN Saclay), C. Volpe R. Lazauskas (SPhN Saclay), C. Volpe (IPN Orsay) Some aspects of neutrino interaction studies using beta beams Can one dispose of  source? Superbeam - factory Beta Beam (P. Zucchelli, Phys. Lett. B 532 (2002) 166)  manufactures Production of e Purity in flavor Energy tuningWell known flux boost 6 He

4. R. Lazauskas (SPhN Saclay), C. Volpe R. Lazauskas (SPhN Saclay), C. Volpe (IPN Orsay) Some aspects of neutrino interaction studies using beta beams PS SPS Beta-beam idea Original beta-beam (High energies >60 GeV/N) Low energy beta-beam (energies ~10 GeV/N) Detector(s) EURISOLEURISOL Ion Source AcceleratorTransfer lineStorage ring C. Volpe, Journ. Phys. G. 30 (2004) L1, 1 st Goal:  CP violation 1 st Goal: cross sections Beta-beam baseline at CERN 133 km

5. R. Lazauskas (SPhN Saclay), C. Volpe R. Lazauskas (SPhN Saclay), C. Volpe (IPN Orsay) Some aspects of neutrino interaction studies using beta beams PS SPS EURISOLEURISOL Low energy Beta-beam baseline at CERN Low-energy Beta-beam Feasibility Study within EURISOL Design Study (2006-2009) Acceleration issues M. Benedikt and M. Lindroos, CERN Storage Ring J. Payet and A.Chancé, CEA Saclay, France - Size (D~700 m or D~900 m) - Space-charge effects - Duty cycle - Intensities close detector(s) Storage Ring Low-energy beta-beam Small Storage ring-detector: Small Storage ring-detector: J. Serreau, C. Volpe, PRC70 (2004) 055502 6 He & 18 Ne, (  =7-14) I( 6 He)=10 13 ions/s I( 18 Ne)=1.8*10 11 ions/s I( 6 He)=2.7*10 12 ions/s I( 18 Ne)=0.44*10 11 ions/s

6. R. Lazauskas (SPhN Saclay), C. Volpe R. Lazauskas (SPhN Saclay), C. Volpe (IPN Orsay) Some aspects of neutrino interaction studies using beta beams Neutrino properties, like the magnetic moment G.C. McLaughlin, C. Volpe, Phys.Lett.B591 (2004) 229 PHYSICS POTENTIAL Neutrino-nucleus interaction studies C. Volpe, Journ. Phys. G. 30 (2004) L1,G.C. McLaughlin:Phys.Rev. C70 (2004) 045804C. Volpe: Eurisol proposal; R. Lazauskas, C.Volpe: arxiv0704.2724; A. Bueno et al.: Phys. Rev. D74 (2006) 033010 Low-energy Beta-beam Aspects related with astrophysics: Supernova-neutrino spectra N. Jachowicz, G.C. McLaughlin: Phys.Rev.Lett. 96 (2006) 172301 Fundamental tests: Weinberg angle, CVC test A.B. Balantekin, J.H. de Jesus, C. Volpe: Phys.Lett. B634 (2006) 180 A.B. Balantekin et al.:, Phys.Rev. D73 (2006) 073011 ….

7. R. Lazauskas (SPhN Saclay), C. Volpe R. Lazauskas (SPhN Saclay), C. Volpe (IPN Orsay) Some aspects of neutrino interaction studies using beta beams CVC hypothesis test The most general form for N interaction CVC hypothesis: Superallowed  -decay Weak magnetism

8. R. Lazauskas (SPhN Saclay), C. Volpe R. Lazauskas (SPhN Saclay), C. Volpe (IPN Orsay) Some aspects of neutrino interaction studies using beta beams CVC tests Vector form factor: super-allowed beta decay J. C. Hardy and I. S. Towner, Phys. Rev. C 71 (2005) 055501 Tensor terms (weak-magnetism): Gamow-Teller transitions in mirror nuclei A=12 triad Y. K. Lee, L. W. Mo and C. S. Wu, Phys. Rev. Lett. 10 (1963) 253. C. S. Wu, Rev. Mod. Phys. 36 (1964) 618. T.D. Lee and C. S. Wu, Ann. Rev. Nucl. Sci. 15 (1965) 381.

9. R. Lazauskas (SPhN Saclay), C. Volpe R. Lazauskas (SPhN Saclay), C. Volpe (IPN Orsay) Some aspects of neutrino interaction studies using beta beams Fundamental tests CVC test using water Čerenkov detector: D=678 m d=10 m e + e    h=15 m r I( 6 He)=2.7x10 12 ions/s Small Storage ring-detector: J. Serreau, C. Volpe: PRC70 (2004) 055502

10. R. Lazauskas (SPhN Saclay), C. Volpe R. Lazauskas (SPhN Saclay), C. Volpe (IPN Orsay) Some aspects of neutrino interaction studies using beta beams CVC hypothesis test The most general form for CVC hypothesis: ? + p → n + e - Superallowed  -decay A.B. Balantekin et al., PRD73 (2006) 073011 Negligible Weak magnetism e + e    h=15 m r

11. R. Lazauskas (SPhN Saclay), C. Volpe R. Lazauskas (SPhN Saclay), C. Volpe (IPN Orsay) Some aspects of neutrino interaction studies using beta beams CVC hypothesis test The most general form for CVC hypothesis: ? + p → n + e - 0% 2% 5% 10% Superallowed  -decay A.B. Balantekin et al., PRD73 (2006) 073011 Negligible Weak magnetism

12. R. Lazauskas (SPhN Saclay), C. Volpe R. Lazauskas (SPhN Saclay), C. Volpe (IPN Orsay) Some aspects of neutrino interaction studies using beta beams CVC hypothesis test The most general form for CVC hypothesis: ? + p → n + e - 0% 2% 5% 10% Superallowed  -decay Weak magnetism Accurate and model independent CVC hypothesis test is possible A.B. Balantekin et al., PRD73 (2006) 073011 Negligible

13. R. Lazauskas (SPhN Saclay), C. Volpe R. Lazauskas (SPhN Saclay), C. Volpe (IPN Orsay) Some aspects of neutrino interaction studies using beta beams Nuclear excitations Pb Bi 0+0+ 1+1+ 1-1- 1-1- 2+2+ 3-3- A better knowledge of spin-isospin response NEUTRINOS AS a PROBE of NUCLEAR STRUCTURE 0+0+ e + 208 Pb 208 Bi + e - little or no experimental information is available.

14. R. Lazauskas (SPhN Saclay), C. Volpe R. Lazauskas (SPhN Saclay), C. Volpe (IPN Orsay) Some aspects of neutrino interaction studies using beta beams Nuclear excitations Gamow-Teller A better knowledge is needed R. Lazauskas, C. Volpe, accepted in NPA. NEUTRINOS AS a PROBE of NUCLEAR STRUCTURE Pb Bi 0+0+ 1+1+ 1-1- 1-1- 2+2+ 3-3- 0+0+ e + 208 Pb 208 Bi + e - No exp. info IAS

15. R. Lazauskas (SPhN Saclay), C. Volpe R. Lazauskas (SPhN Saclay), C. Volpe (IPN Orsay) Some aspects of neutrino interaction studies using beta beams Nuclear excitations R. Lazauskas, C. Volpe, accepted in NPA. NEUTRINOS AS a PROBE of NUCLEAR STRUCTURE Pb Bi 0+0+ 1+1+ 1-1- 1-1- 2+2+ 3-3- 0+0+ e + 208 Pb 208 Bi + e - tool to study Low energy beta-beams as a tool to study nuclear spin-isospin excitations

16. R. Lazauskas (SPhN Saclay), C. Volpe R. Lazauskas (SPhN Saclay), C. Volpe (IPN Orsay) Some aspects of neutrino interaction studies using beta beams Can one use the original beta-beam for low energy neutrino experiments? Place detector out of the large storage ring axis Place detector out of the large storage ring axis R. Lazauskas et al., submitted. Original  -beam for low energy ~ 50-80 m 2501 m

17. R. Lazauskas (SPhN Saclay), C. Volpe R. Lazauskas (SPhN Saclay), C. Volpe (IPN Orsay) Some aspects of neutrino interaction studies using beta beams Can one use the original beta-beam for low energy neutrino experiments? R. Lazauskas et al., submitted. Original  -beam for low energy

18. R. Lazauskas (SPhN Saclay), C. Volpe R. Lazauskas (SPhN Saclay), C. Volpe (IPN Orsay) Some aspects of neutrino interaction studies using beta beams Conclusion Low energy beta-beams: is rich and unique laboratory for neutrino interaction as well as fundamental studies presents interest for research in several domains of physics represents an interesting extension of EURISOL Acknowledgements: I acknowledge the financial support of the EC under the FP6 "Research Infrastructure Action- Structuring the European Research Area" EURISOL DS Project; Contract No. 515768 RIDS. The EC is not liable for any use that can be made of the information contained herein.