GROUP MEETING

GN05-01

January 15, 2005

 

To:

LaJohn, Novikov

 

There will be a group meeting WENESDAY January 19, 3:00 pm   Room 216 AH.

Note change in room.

 

(Future dates Jan 26, Feb 2, 9, 16, 23, Mar 2, 9, 16, 23, Apr 6, 13, 20)

 

1

Organizational Issues

a

Appointments, next meeting, other meetings, lectures

 

 

b

Computer issues, finances,

 

2

Meetings

Place

Date

 

 

 

 

 

AAAS

Washington, DC

Feb 17-22, 05

 

Ghose

Calcutta, India

Mar 28-30

 

DAMOP

Lincoln, NE

May 17-21, 05

 

IRRMA

Hamilton, ONT, Canada

June 20-24, 05

 

X-2005

Melbourne, Australia

July 4-8,. 05

 

ICPEAC

Rosario, Argentina

July 20-26, 05

 

(e,2e), double photo, etc

Buenos Aires, Argentina

July 28-30, 05

 

IWP2005

Campinas, Brazil

 

 

EGAS

Dublin, Ireland

Aug 3-6, 05

 

3

Deadlines

 

 

 

 

 

Abstracts

DAMOP (Jan 28), ICPEAC (Mar 1)

 

Manuscripts

 

 

Registration

DAMOP (April 1), ICPEAC (Apr 30)

 

4

Travels, Visitors

 

 

 

 

Travel

 

 

Arrivals

 

 

Departures

 

 

Visits

Avdonina (?Jan?), Uskov (Jan?), Solov’yov (Feb/Mar), Gasaneo (c Feb 25 - Mar 23), Kim (?), Drukarev (Sept?).

 

 

RHP

Pitt

Travel

 

 

 

 

 

 

 

Jan

 

 

 

 

Feb

 

17-22

DC

 

Mar

 

24-5

India, Frankfurt?

 

Apr

 

late

Zagreb?St. Ptsb?, Frankfurt?

 

May

 

17-21

Lincoln

 

June

 

18-19?

Hamilton

 

 

 

25

Mt. Pleasant

 

July05

 

4-8

Melbourne

 

 

 

20-26

Rosario

 

Aug05

 

20

Urbana

 

Sept05

 

 

 

 

Oct 05

 

21-22

Coimbra

 

5

Manuscripts

 

 

 

 

547

“Master equations for degenerate systems: electron radiative cascade in a Coulomb potential”, D. B. Uskov and R. H. Pratt, published J. Phys. B. 37, 4259-4271 (2004).

 

548

“Tseng’s calculations of low energy pair production”, R. H. Pratt, being accepted for RPC

 

549

Minima of generalized oscillator strengths of atomic transitions and the approach to the high energy limit”, N. B. Avdonina, D. Fursa, A. Z. Msezane and R. H. Pratt, to be resubmitted to PRA

 

550

“Investigations on Compton scattering: New directions”, B. K. Chatterjee, L. A. LaJohn and S. C. Roy, submitted to RPC

 

551

“Comparison of theory and experiment for polarizational bremsstrahlung”, O. I. Obolensky and R. H. Pratt, submitted to RPC

 

552

“Correlations in relativistic photoeffect”, E. G. Drukarev and R. H. Pratt, submitted to PRA.

 

553

"Elastic scattering of 1.115 MeV photons", Bhakta Kunwar, Arunava Bhadra, Swapan K. Sen Gupta, J. P. J. Carney, and R. H. Pratt. accepted for Phys. Rev. A.

 

554

"Review of structures in low-energy bremsstrahlung: classical and quantum descriptions", O. I. Obolensky and R. H. Pratt, submitted to RPC.

 

6

Funding

 

 

 

 

Pittsburgh Proposals

 

 

 

NSF 0456499 submitted Sept 22, 2004

 

 

Pittsburgh Awards

 

NSF 0201595

7/1/02 - 6/30/05

 

 

NSF 0242942

5/1/03 – 4/30/05

(Darjeeling workshop)

 

NSF 0352483

5/1/04 – 4/30/07

NSF/DST cooperative with Bose Institute

 

 

Other Awards

 

 

 

 

Due Dates

 

 

 

7-30-05? NSF 0242942 Darjeeling final report

 

3-30-05? NSF 0201595 no cost extension for Argentina

 

7

Recent Preprints

 

 

 

 

 

8

Recent Papers

 

 

 

 

 

a

LaJohn

"Observation of large quadrupolar effects in a slow photoelectron imaging experiment", PRL 93, 233003 (2004), Lepine et al

 

b

Kim

"Entanglement in scattering processes", PLA 333, 371 (2004), Mishima, Hayashi, Lin

 

c

Pratt

"Nonrelativistic limit of Dirac-Fock codes, PRL 94, 013002 (05) Indelicato, Lindroth, Desclaux

 

d

Pratt

"Regularization of Coulomb scattering problem", PRA 70, 052701 (04) Baryshevskii et al

 

e

Novikov

"Transitions into negative-energy Dirac continuum", PRA 70, 054101 (04), Krekora, Su, Grobe

 

f

Gasaneo

"Theory of electron-impact ionization of atoms", PRA 70, 062703 (04), Kadyrov et al

 

9

Review of Literature:

 

 

 

 

 

 

a

Pratt

“Solving the three-body Coulomb breakup problem using exterior complex scaling”, JPB 37, R137 (2004) McCurdy, Baertschy, Rescigno

 

b

Pratt

"Gordon decomposition of polarizability of Sturmian expansion of Dirac Coulomb Green function". JPB 37, 3961 (2004), Szymtkowski & Mielewczyk

 

c

LaJohn

"Parametrization of non-dipole processes in s-shell photoionization: spin-orbit interaction effects", JPB 37, 4177 (04) Martin

 

d

LaJohn

"Strong Levinson theorem for the Dirac equation", PRL 93, 180405 (Oct 29 04) Calogeracos & Dombey

 

e

Novikov

"Relativistic & interchannel coupling in photoionization", PRL 93, 183001 (Oct 29 04) Coutinho et al

 

f

Uskov

"Regge oscillations in integral cross sections", PRL 93, 183203 (Oct 29 04) Macek, Krstic, Ovchinnikov

 

g

Pratt

"Integral representation of Coulomb Green function from Sturmian expansion", PRA 70, 042704 (04) Shakeshaft

 

h

Pratt

"Direct calculation of scattering amplitude without partial-wave analysis", PRA 70, 042710 (04) Shertzer & Temkin

 

i

Drukarev

"Relativistiv recoil in radiative atomic transitions", PRA 70, 044701 (04) Pilkuhn

 

j

Pratt

"Partial wave completion technique for scattering amplitudes" JPB 37, 4339 (04) Ancarani & Chidichimo

 

 

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

"Multipole decomposition of the modified form factors", L. A. LaJohn

 

d

“Some notes on analytic continuation of the Coulomb dipole matrix element:, O. I. Obolensky and R. H. Pratt

 

e

“Singularities of the Dipole Matrix Element”, D. B. Uskov & R. H. Pratt

 

f

Regge ideas in bremsstrahlung”, D. B. Uskov & R. H. Pratt

 

 

 Also considered: non-dipole photo (Krassig, Southworth)

 

12

Work in Progress

 

 

 

 

Gasaneo

GOS calculations

 

Kim (YS)

qm observables

 

Lajohn

independ info & correl in Rayleigh scattering, Compton scatt

 

Obolensky

Trajectories of zeroes, pol brem ang dist

 

Suric

AFT in scattering Stobbe & Elwert factors

 

Uskov

bound states and trajectories of zeroes

 

13

Computer facilities

 

 

 

The group owns a number of computers, including PC Intel Pentium 4, (Stribor), Sun SPARCstation 5 (Oat), Pentium laptop computer (Shiba), PC Intel Celeron (OatPC), and R. Pratt’s PowerMac G4.

 

Stribor (operated by Linux Red Hat 9) serves as the main group computer.  All user files are stored on Stribor.  It has the latest version of Intel fortran compiler, and users are encouraged to compile, debug and run their codes using Stribor.

 

Stribor also runs the IMAP mail server and Apache web server. The group’s website address is http://stribor.phyast.pitt.edu

 

Old large codes (Rayleigh and Compton scattering, bremsstrahlung) can be run on Oat (operated by Solaris 2.6). Rayleigh & Compton have also been modified for compilation under the Windows operating system.  The latest version of these can be obtained from L. LaJohn. 

 

OatPC runs WindowsXP and has all commonly used applications.  Short term visitors who prefer Windows over Linux can use OatPC.

 

The group has books available on various operating systems, languages and software, also hardcopy documentation on the codes.

 

Help with all computer connected issues is available from S. Novikov.