GROUP MEETING

GN02-28

August 31, 2002

 

To:

Cohen, Kashenock, LaJohn,, Uskov

 

There will be a group meeting WEDNESDAY September 4, 2:00 pm  Room 316 AH.

 

(Future dates 2 pm: Sept 11, Oct 2, 9, 16, 23, 30, Nov 6,20, 27?, Dec4, 11, 18, Jan 8?)

 

Note new time!

 

1

Organizational Issues

a

Appointments, next meeting, other meetings, lectures

 

 

b

Computer issues, theses, finances, telephone

 

2

Meetings

Place

Date

 

 

 

 

 

HCI

Caen, Fr

Sept 1-6

 

CEPAS

Gdansk, Pl

Sept 2-6

 

AISAMPS

Nara, Jp

Oct 1-5

 

CAARI

Denton, TX

Nov 12-16

 

AAAS

Denver CO

Feb 13-18  03

 

DAMOP

Boulder CO

May 21-24  03

 

XAFS12

Malmo, Sweden

June 22-27 03

 

ICESS 9 (ElectSpectStruct)

Upsala, Sweden

June 30 -July 4 03

 

ICPEAC

Stockholm, Sweden

July 23-29  03

 

(e,2e),double photo,etc

near Frankfurt, GE

July 30-Aug 2

 

ISRP

Cape Town SA

Oct 27-31  03

 

3

Deadlines

 

 

 

 

 

Abstracts

ICPEAC (Mar 1)

 

Manuscripts

CAARI (Oct 1)

 

Registration

CAARI (Oct 1), ICPEAC (Apr 30)

 

4

Travels, Visitors

 

 

 

 

Travel

Uskov (?cOct1-8?, c Nov 12-16)

 

Arrivals

Suric (cOct 1), Obolensky (Nov 10?), Drukarev (cNov 18)

 

Departures

Kashenock (Sept 25), Suric (cNov 1), Drukarev (c Dec 20)

 

Visits

Sen Gupta (Nov?), Suric (cOct 1 - cNov 1), Drukarev (c Nov 18 - Dec 20), Obolensky (Nov 10?- 1 yr),  Solov'yov (?Nov?), Bradley & Hugtenburg (late Dec)

 

 

RHP

Pitt

DC

Travel

 

 

 

 

 

 

 

 

Sept

-13

 

13-25

Cape Town, Exeter

 

 

25-26

 

27-30

Lake Placid

 

Oct

1-3

 

?4-6?

New York

 

 

7-31

 

 

 

 

Nov

4-11

1-3

12-16

Denton. TX

 

 

17-

 

 

 

 

Dec

 

 

 

 

 

Jan

 

 

 

 

 

Feb

-c6

 

c7-18

Dallas, Larkspur, Denver

 

 

19-

 

 

 

 

Mar

-?19

 

?20-22?

?New York?

 

 

 

 

?23-31

?Darjeeling?

 

Apr

1-

 

10-12 or 17-19

Coimbra, Portugal

 

 

 -

 

 

 

 

May

-16

 

17-24

NewYork, Boulder

 

 

25-

 

 

 

 

June

 

 

 

 

 

July

 

 

23-2

Stockholm, Frankfurt

 

Aug

 

 

 

 

 

Sept

 

 

 

 

 

Oct

 

 

27-31

Cape Town

 

5

Manuscripts

 

 

 

 

528

“Characterization of high energy photoionization in terms of the singularities of the atomic potential: I. Photoionization in independent particle approximation (IPA)”, T. Suric, E. G. Drukarev, and R. H. Pratt

 

529

“Characterization of high energy photoionization in terms of the singularities of the atomic potential: II. Photoionization of the ground state of a two-electron atom”, T. Suric, E. G. Drukarev, and R. H. Pratt, being revised for Phys. Rev. A. in accord with recommendations of Editor

 

530

“Characterization of high energy photoionization in terms of the singularities of the atomic potential: III. Beyond K shell ionization, using the example of a two-electron atom in an excited state”, T. Suric, E. G. Drukarev, and R. H. Pratt, resubmitted to Phys. Rev. A.

 

532

"Semiclassical approach for calculating Regge pole trajectories for singular potentials", N. B. Avdonina, S. Belov, Z. Felfli, A. Z. Msezane and S. N. Naboko, published Phys. Rev. A 66, 022713 (August 02)..

 

534

"Structures in low-energy classical bremsstrahlung", A Florescu, O. I. Obolensky, and R. H. Pratt, published J. Phys. B. 35, 2911 (July 14 02),

 

535

"Relativistic electric dipole matrix element zeroes", L. A. LaJohn and R. H. Pratt, being revised in response to referees

 

6

Funding

 

 

 

 

Pittsburgh Proposals

 

 

 

 

Pittsburgh Awards

 

NSF 9970293

7/1/99 - 6/30/02

+ - 3-31-03 (no-cost ext)

 

NSF 0201595

7/1/02 - 6/30/05

 

 

NSF 0209594

11/15/02-10/31/03

(Obolensky NSF-NATO)

 

 

Other Awards

 

 

 

 

Due Dates

 

 

 

 

7

Recent Preprints

 

 

 

 

 

8

Recent Papers

 

 

 

 

 

a

Suric

“Two photons knocking out two electrons of the K shell of neon”, JPB 35, L339 (Aug 14 02) Novikov & Hopersky

 

b

Uskov

“Electrons & photons colliding with atoms”, JPB 35, R117 (Aug 14 02) Bray et al

 

c

Pratt

“Radiation recombination enhancement of bare ions in storage rings with electron cooling”, PRL 89, 083202 (Aug 19 02) Heerlein et al

 

d

Pomponiu

“Representation of a complex Green function on a real basis”, PRA 66, 012506 (July 02) Shakeshaft

 

9

Review of Literature:

 

 

 

 

 

a

Pratt

"Photoionization of atomic ions". JPB 34, R45 (Sept 28 01) West

 

b

Uskov

"Mathematical physics of rainbows & glories", PhysRpt 356,229 (Jan 02) Adam

 

c

Uskov

"Structure of Bethe ridge, relativistic Born & impulse approximation", JPB 35, 33 (Jan 14 02) Segui et al

 

d

Suric, Uskov

"Cusp formation in single particle momentum distributions of 3 body continuum states", JPB 35, 149 (Jan 14 02) Faol, Barrachina & Rodriguez

 

e

Uskov

"Classical description of electron capture to the continuum cusp formation in ion-atom collisions", PRA 65, 030703  (March 02) Illescas, Pons, Riera

 

f

Carney

"Renormalization of two-photon vacuum polarization for a tightly bound electron", EPJ D 19, 147(May 02) Zschocke, Plunien, Soff

 

g

Pomponiu

"Entanglement in double photoionization", JPB 35, 2219 (May 28 02) Chandra & Chakraborty

 

h

Uskov

"Polarizational effects in atomic transitions", PhysUspekhi 45, 149 (Feb 02) Astapenko, Bureyeva, Lisitsa

 

i

Pratt

"Coulomb functions for attractive/repulsive potentials positive/negative energies" CompPhysComm 146, 225 & 250 & 254 (July 1 02) Seaton

 

j

Pratt, Carney, Suric

"Cross sections of discrete-levelexcitation of noble-gas atoms in Compton scattering", PRA 65, 062705 (June 02), Amusia, Chernysheva, Felfli, Msezane

 

k

Uskov

"Threshold behavior of the Jost function for the atomic polarization potential", PRA 65, 062718 (June 02), Macri & Barrachina

 

l

LaJohn

"Q-D interferencein spin-resolved photoionization", PRL 89, 053001 (July 29 02) Khalil et al

 

m

Suric

"Separation & identification of dominant mechnisms in double photoionization", PRL 89, 073002 (Aug 12 02) Scheider, Chocien, Rost

 

 

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 atomic form factors", L. A. LaJohn and R. H. Pratt

 

d

“High energy photoionization beyond independent particle approximation”, E. G. Drukarev and N. B. Avdonina, for J. Phys. B.

 

e

"Forward-backward asymmetries of Kr 1s photoelectrons", B. Krassig, J.-C. Bilheux, R. W. Dunford, D. S. Gemmell, S. Hasegawa, E. P. Kanter, S. H. Southworth, L. Young, L. A. LaJohn, and R. H. Pratt

 

f

"A call for further inelastic scattering experiments at x-ray energies", S. C . Roy and R. H. Pratt, in preparation for RPC

 

 

Also considered: non-dipole photo (Krassig, Southworth), Regge in bremsstrahl (Uskov)

 

12

Work in Progress

 

 

 

 

Avdonina

photoionization, GOS beyond Born & zeroes

 

Drukarev

qfm for ioniz of 2p neon, relativistic correl in photo

 

Kim (YS)

qm observables

 

Lajohn

ff decomp, independent information, in Rayleigh scattering

 

Obolensky

Trajectories of zeroes

 

Suric

Compton, double/single in Compton, photo, AFT in scattering

 

Kashenock

h.e. photoionization of fullerenes

 

Uskov

Regge poles in class/quant bremst,  cascades & basis sets

 

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