École d'Été de Physique des Particules de l'IN2P3
(École de Gif)

ISN Grenoble, 13 - 17 Septembre 1999.


Bulletin Ntex2html_wrap_inline162  2

Les inscriptions à l'Ecole de GIF 99 pourront se faire dès le dimanche 12 septembre, entre 18h et 20h, au Royal Hotel, 2, rue Gabriel Péri (plan). Elles se poursuivront lundi matin, à coté de l'amphithéâtre de l'ISN, à partir de 8h30.

Il vous sera remis une malette avec entre autre tous les renseignements pratiques pour joindre l'ISN, un plan et des horaires de bus. Les tickets de bus/tramway sont vendus à l'unité dans les bus (7,50F l'unité), et par carnet de 10 dans les bureaux de tabac ou aux arrêts de tramway (55,00F le carnet). Le bus n tex2html_wrap_inline162 34 qui dessert l'ISN circule de 5h50 à 20h15 en semaine.

Durant toute la semaine, la restauration sera assurée par la cafétéria du polygône (50,00 F le repas). Le banquet aura lieu le jeudi 16 septembre, à 20h, au Restaurant du Téléphérique où vous aurez une vue de Grenoble la nuit. Pour vous y rendre, vous prendrez le téléphérique de la Bastille. Une participation globale de 120,00 F par personne vous sera demandée.

Lors de l'inscription, vous aurez à régler par chèque ou en espèces (nous ne sommes pas en mesure d'accepter des règlements par carte) :

Un apéritif de bienvenue aura lieu à l'ISN lundi 13 après les cours.


Et si les neutrinos avaient une masse ?

PROGRAMME PRELIMINAIRE

tabular49

tabular95

N.B. Par rapport au programme initial, la liste des professeurs a dû être modifiée :

  

  *************
  * S. Petcov *
  *************


1    Introduction: What We Know About Neutrinos. 
     The Neutrino Mass Problem. General Consequences of the
     Nonzero Neutrino Mass and Lepton Mixing Hypothesis.


2    Dirac and Majorana Neutrinos.


3    General Theory of Generation of Neutrino Masses and Mixing
     (Dirac, Majorana, Dirac + Majorana Mass Terms; Different Types  
     of Massive Neutrinos: Dirac, Majorana, Non-Standard
     (ZKM) Dirac, Pseudo-Dirac.)


4   Phenomenology of Neutrino Oscillations in Vacuum.


5   Neutrino Mass Generation in Gauge Theories.
    Neutrino Oscillations in Matter I.

6   Distinguishing Between Massive Dirac and Massive Majorana Neutrinos:
    Neutrinoless Double Beta Decay. 
    Neutrino Mass and Mixing Scenarios I.

7   Neutrino Oscillations in Matter II. 
    Neutrino Mass and Mixing Scenarios II.

  
  *****************
  * P. Chardonnet *
  *****************



              =================================
                  SELECTED TOPICS IN NEUTRINO
                  ASTROPHYSICS AND COSMOLOGY
              =================================



I - NEUTRINOS  IN COSMOLOGY

1- Expansion, Age and contents of the Universe
This first part is a short review of the Big Bang, the standard model of
cosmology. I will derive the cosmic density and the most famous bound of
cosmology for neutrinos stable or unstable. I will  discuss the case of the
relic neutrinos.

2- Structures formation of the Universe
The puzzle of neutrino mass is strongly related to one of the mystery of
cosmology: the problem of dark matter. I will examine the link between this
two field. In particular, I will briefly explain the problem of structure
formation in the light of COBE data and with the possible non vanishing
cosmological constant.

3- Cosmic Microwave Background Radiation
In this part I will analyse the possible distortion of CMBR by decaying
neutrinos. In the light of the quest of cosmological parameters I will
explore the effect of non zero neutrino mass in the CMBR fluctuation
spectrum. I will also present the modification of chemical potential by
decaying neutrinos.


4- Big-Bang nucleosynthesis
The study of Big-Bang nucleosynthesis provide a natural way to put
constraint on the mass of neutrino mass. In a toy model I will compute the
primordial abundances in helium. I will examine the case of sterile
neutrinos.




II - NEUTRINOS IN STARS

The physical processes in stars involve particular aspects of neutrinos. It
is a natural way to study  their mass and their electromagnetic properties.
I will show how to constrain the neutrino magnetic moment in the cooling of
red giant.


III - EXTRAGALACTIC NEUTRINOS

The supernova 1987 gave us the first extragalactic neutrinos. This part is
devoted to the high energy neutrinos and neutrinos from supernova which may
be the major source for neutrino telescopes.

figure114

figure114

figure114

  
  ************
  * M. SPIRO *
  ************


            ===================
              Solar Neutrinos
            ===================

in brackets is given a time indication

I - Basics of the sun [35 mn]

    a) 2e- + 4p --> 4He + 2nu_e    
       Relation between luminosity and number of neutrinos 

    b) Modele:
          P,T,R,L   the equation of state, hydrostatic equilibrium,
                    energy transport, nuclear reactions

    c) Standard Solar Model
          equations
            |
             -----> neutrino spectrum
             -----> sound speed, solar oscillations

       ==> Successful Model ...except for neutrinos ! 


II -  Experiments and experimental results [30mn]
      
      - background 
      - Cl, Ga, K, SK

III - Solar neutrino problems
       - deficit observed
       - 7Be  Cl vs K
              K vs Ga
       - the difficulties in the astrophysic interpretation
	 (opacity, sigma...)
       - the interpretation in term of oscillations       

IV - How to go further ? [10mn]
     the night/day effect
     the 7Be deficit
     the 8B spectrum
     the NC/CC ratio
     pp measurement
     
     the projects (KAMLAND)


            =========================
              Atmospheric Neutrinos
            =========================

I - Neutrino production in atmosphere [15mn]

    - nu_e/nu_mu ratio
    - zenithal dependance
    - East/West effect

II - Experiments and results [25mn]
    - Frejus
    - Kamiokande, IMB
    - Soudan
    - SuperKamiokande
    - Macro

III - Interpretation with nu oscillation  [10mn]
      nu_mu - nu_e
      nu_mu - nu_tau
      nu_mu - nu_s

IV - Analysis of the possible systematics [30mn]
      - experimental
           backgrounds
           nu_e, nu_mu confusion
           measurement of theta, L, E
      - theoritical
           primary, secondary
           geomagnetic effects

V How to go further                       [15mn]
      the atmospheric neutrinos (calorimeters, Antares)
      the long baselines


Atmos. neutrinos / solar neutrinos [10mn]

  **************
  * G. SZKLARZ *
  **************



              =================================
              Direct neutrino mass measurements
              =================================

 kinematic measurements from weak decays
   - short account for mu and tau neutrino mass results
   - description of tritium experiments with emphasis
     on the various experimental problems.
   - neutrino mass measurement with bolometers (rhenium 187)
     with a short introduction to cryogenic detectors.



 neutrino mass measurements from supernova explosions
 (specially for mu and tau neutrinos). for this part
 the lecture on astrophysics should include a description
 of neutrino production by supernovas.



                =================
                Double beta decay
                =================

  Phenomenology of double beta decay
    - the different double beta decay channels
    - half lifetime formulae. different parameters which
      are deduced: effective neutrino mass, coupling constants etc...
    - choice of isotopes with a short introduction to nuclear
      matrix elements calculation problems.


  Experimental methods
    - the different methods (calorimeters an gazeous detectors)
      with their backgrounds. emphasis will be put on
      present detectors for neutrino mass measurements in the
      .1 eV range (Ge detectors and NEMO).
    - possibilities for double beta decay experiments in the
      .01 eV range: GENIUS, CUORE etc...

  *****************
  * S. KATSAVEVAS *
  *****************

      Search at accelerators  
      ======================
   
      a) Neutrino production with accelerators
         
            - low energy : spallation sources --> Rutherford, Los Alamos
            - Neutrino beams : pions and kaons decay
                 + particle production
                 + focussing
                 + flux versus neutrino species, monitoring
            - Muon accumulator
            
       b) Neutrino Oscillation search

            - main interest : appearance method Numu --> Nue, Nutau
            - Numu disappearance
            - LSND versus KARMEN : status and prospects (BOONE, I216)
            - short baseline : small mixing, large Dm2  (CHORUS, NOMAD)
            - long baseline : 
                   small Dm2 --> test of the atmospheric neutrino effect  
                   + K2K status
                   + prospects : NUMI and NGS 
                   
       c) Neutrino Oscillation : study of the mixing matrix (muon machine)

  **************
  * Y. DECLAIS *
  **************


      Search at Reactors   
      ==================

      a) Neutrino production with reactors
      
            - production mechanisms
            - energy spectrum
            - flux
            - monitoring and normalisation
            - neutrino detection
            
      b) Neutrino Oscillation search
      
            - disappearance method: sensitivity
            - experimental difficulties
            - summary of searches at small distance
            - long baseline experiments : CHOOZ, Palo-Verde
            - Very long baseline : KamLAND, Borexino



Corinne Berat
Wed Sep 8 15:11:38 METDST 1999