GROUP MEETING
GN01-11 May 11, 2001
To:
Kashenock, LaJohn, Obolensky
There will be a group meeting FRIDAY June 8, 3 pm, 216AH.

Note room and time.

(Future dates: Th June 28, ?July 13?, ?Aug 3?, Aug 10, Aug 24).
1 Organizational Issues a
Appointments, next meeting, other meetings, lectures
    b Computer issues, theses, finances, telephone

 
2 Meetings
Place
Date
  GC-Atomic Physics Williams Col, MA June 17-22
  GC-photoions, ioniz, detach Williams Col, MA July 8-13
  ICPEAC Santa Fe, NM July 18-24
  GC-x-ray physics Conn Col July 21-26
  VUV Trieste, Italy July 23-27
  e,2e dbl photo St. Louis, MO Jul 26-28

 
3 Deadlines  
     
  Abstracts  
  Manuscripts  
  Registration  

 
4 Travels, Visitors
  Travel Obolensky (July 17- c Aug 7)
  Arrivals Kashenock (c June 1)
  Departures Obolensky (Aug 12?)
  Visits Avdonina (Jul c8-10, c25 - Oct?),
Suric (Jul/Aug),
V Florescu (Sept/Oct),
Dondera (July?),
Kashenock (cJune 1 - Dec 02),
Bureyeva (c. June 22 - July 17),
Solovyov (July?),
Korol (?Sept-Oct?),
Drukarev (c Oct 7 - Nov 11)

 
  RHP Pitt DC Travel  
           
  May -13   14-19 AnnArbor, MI London, Ont
    23 20-22 24-3 Exeter, London, Zagreb, Frankft
  June 4 5-7    
    8-11   12-16 St. Ptsbg, Frkft
    17 18-27?    
  July 28-1 2-3? 4-7? Ithaca NY ?
    13-16? 8-12 17-25 Sante Fe, NM
  Aug 3-4 26-2 5-9 Larkspur CO
    10-12 13-23    
    24-26 27-    

 
5 Manuscripts
     
  519 "Existence of near-minima in elastic photon-atom scattering", J. P. J. Carney and R. H. Pratt, for publication in J. Rad. Phys. Chem.
  520 "Circumstances in which radiation is not absorbed, forbidding photoionization: Four classes of matrix element zeroes", L. A. LaJohn and R. H. Pratt, for publication in J. Rad. Phys. Chem.
  521 "Ionization of an atom by photoabsorption at high photon energies: Unified view in terms of singularities of the Coulombic potential", T. Suric and R. H. Pratt, for publication in J. Rad. Phys. Chem.
  523 "Understanding the importance of dynamic, correlation, and exchange effects in new low-energy photon scattering experiments", J. P. J. Carney and R. H. Pratt, for publication in AIP Proceedings (CAARI).
  524 "Structures in the energy dependence of classical and quantum bremsstrahlung", A. Florescu, O. I. Obolensky, C. D. Shaffer, and R. H. Pratt, for publication in AIP Proceedings (CAARI).
  525 "The approach to asymptotic behavior in photoionization", R. H. Pratt and T. Suric. For publication in Journal Chinese Chemical Society
  526 "Corrections to the usual scattering factors for total x-ray scattering in rare gas atoms: experiment and theory", L. Young, R. W. Dunford, E. P. Kantor, B. Krassig, S. H. Southworth, R. A. Bonham, P. Lykos, C, Morong, A. Timm, J. P. J. Carney, and R. H. Pratt, accepted for Phys. Rev. A.

 
6 Funding
  Pittsburgh Proposals
             Pittsburgh Awards
  Other Awards
  Due Dates
   
7 Recent Preprints
       
8 Recent Papers
a Suric "Mechanism of two-electron photoionization", JPB 34, L247 (April 28 01) Kheifets

 
9 Review of Literature:
       
  a Pratt "Compton scattering by nuclei", Phys.Rpts 323, 457 (Jan 00), Hutt, L'vov, Milstein, Schumacher
  b Pratt "Theory of two electron atoms: between ground state & complete fragmentation", RMP 72, 467 (April 00) Tannet, Richter, Rust
  c Suric (gamma, 2e) in He - practical parametrization of triple differential cross section", JPB 33, 4691 (Nov 14 00), Cvejanovic & Reddish
  d Suric "Absolute differential cross sections for photo double ionization of he from hyperspherical R matrix method", PRL 85, 4450 (Nov 20 00), Malegat, Selles, Kazonsky
  e Suric "High energy limit of the double-electron photoionization cross section of the helium atom", PRA 62, 064701 (Dec 00), Krivec, Amusia, & Mandelzweig
  f Obolensky "Experimental demonstration of three mutually orthogonal polarization states of entangled photons", PRL 85, 5013 (Dec 11 00), Tsegaye et al
  g LaJohn "Classical form factor for transitions in the hydrogen atom", PLA 277, 223(Dec 4 00) Bersons, Kulsh, Veilande
  j Suric "Half collision model for triple photoionization of lithium", PRA 63. 020701 (Feb 01), Pattard & Burgdorfer
  k Avdonina "Minima & maxima in GOS", JPB 33, 5397 (Dec 14 00) Chen &Msezane
  l Pratt "Bound-free pair production in relativistic heavy ion collisions", PRA 63, 032713 (March 01) Meier et al
  m Pratt "A note on measurement", PLA 282, 133 (Apr 16 01) d'Espagnat
  n LaJohn "Non-dipole effects in spin polarization of photoelectrons from Xe 4p and 5p", JPB 34, L211 (Apr 14 01) Cherepkov & Semonov
  o Obolensky "Independent time approximation for dynamically interacting multi-electron systems", JPB 34, L223 (Apr 14 01) Godunov & McGuire

 
 
10 Presentations
       
11 Manuscripts in Preparation
     
  a "Polarization correlations for d,f states", Kim, Goldberg, Pratt
  b "Observables in quantum mechanics: creating spin polarization in the absence of spin orbit interactions", Young Soon Kim and R. H. Pratt
  c "Ionization of two-electron atoms by photoabsorption at high photon energies: A view in terms of singularities of the electron-nucleus and electron-electron Coulombic potential", T. Suric, R. H. Pratt and E. G. Drukarev
  d "Multipole decomposition of atomic form factors", L. A. LaJohn and R. H. Pratt
  e "Multichannel coupling and the high energy limit of the photoionization process", E. Drukarev, N. Avdonina, and R. H. Pratt
  e "Multichannel coupling and the high energy limit of the photoionization process", N. Avdonina , E. Drukarev, and R. H. Pratt
  f "Compton scattering", Carney & Pratt, for Croatian Journal of Phys
  g "High energy zeroes", LaJohn, Pratt
  h "Structures in classical bremsstrahlung", Florescu, Oboloensky, Pratt
  * Also considered: bremsstrahlung review (Quarles), Linear response (Florescu), recursion relations (Bronson), semi-relativistic Rayleigh (Costescu, Bergstrom), AFT review (Suric), photoeffect review (Kim)
12 Work in Progress
 
Avdonina
double photoionization, GOS beyond Born & zeroes
  Drukarev angular double ioniz, qfm triple & double dist, qfm for ioniz of 2p neon
  A. Florescu classical bremsstrahlung, relativistic zeroes
  V. Florescu retarded & relativistic zeroes
  Kim (YS) retarded zeroes, qm observables
  Lajohn independent information in Rayleigh scattering, rel zeroes
  Obolensky Trajectories of zeroes
  Suric Compton, double/single in Compton, photo, AFT in scattering

 
 
13 Code Library
   
  The computers primarily available for use are the group's own Sun UNIX workstations. There is also the VAX system operated by the Computing and Information Systems (CIS) department, but this system tends to have older versions of the codes, and new users will find more help available if they are using the workstations.
  In order to run the codes on local systems, look for executables in the directories:
    UNIX workstations: /usr/local/atomic/bin
    VAX system: USR2:[10104.ATOMIC1.EXE]
  We encourage use of the SLATEC numerical library, which contains a wide variety of numerical algorithms written in FORTRAN. Source code is available in the directories:
    UNIX workstations: /usr/local/atomic/slatec
    VAX system: USR3:[PHY.SLATEC]
  More information is available on the group's web site at:
    http://stribor.phyast.pitt.edu/
  The group has many books available on various operating systems, languages and software, which are kept in 325 OEH (also 327 OEH and 222 Allen). This is also the place to look for hardcopy documentation on the codes.

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