GROUP MEETING

GN07-23

August 18, 2007

To:	LaJohn, Uskov

There will be a group meeting WEDNESDAY August 22, 3:00 pm Room 316 AH.
	(Future dates Aug 22 Sept 5,12,19,26 Oct 17,24,31 Nov 7?, 21?, 28) There will be a social hour 5 pm Wednesday August 22.

1	Organizational Issues	a	Appointments, next meeting, other meetings, lectures
		b	Computer issues, finances,

2	Meetings	Place	Date
	NSRP	Kolkata, India	Nov 14-16
	AAAS	Boston, MA	Feb 14-18
	DAMOP	State College, PA	May 27-31
	IRRMA	Prague, Cz	June 22-27
	X-08	Paris, France	June 22-27
	(e,2e)	Paris, France	June 30-July 2
	ICAP	Storrs, CT	July 27 - Aug 1
	CAARI	Fort Worth, TX	Aug 10-15
	HCI 2008	Tokyo, Japan	Sept 1-5

3		Deadlines
	Abstracts
	Manuscripts
	Registration		X-08 (April 30)

4		Travels, Visitors
	Travel
	Arrivals		Uskov (c Aug 19), Roy (Sept 9), Suric (c Oct 10), Avdonina (Nov 19), Dukarev (Nov 20)
	Departures		Uskov (c Aug 23), Roy (Oct 3), Suric (c Nov 10), Avdonina (Dec 18), Drukarev (Dec 21)
	Visits		Uskov (cAug19-23), Bradley (?), Roy (Sept 9 - Oct 3, May 08), Suric (c Oct 10 - Nov 10), Avdonina (Nov 19 - Dec 18, cMay15 - Jun 15), Drukarev (Nov20-Dec21, May?), Sen Gupta (Dec/Jan), Kashenock (winter?), Pisk (April 08?), Florescu (spring?), Solov'yov (?May 08?), Mihailov (May?), Chatterjee (May/June 08).

RHP	Pitt	Travel
Aug		28-30	Ohio
Sept		28-Oct1	Lake Placid
Oct		3-10	RiodeJaneiro etc
Nov		8-18?	Kolkata
Feb		13-18	Boston
May		26-31	State College
June		19-Jul 3	Prague, Paris

5		Manuscripts
	559		"Limitations on the validity of impulse approximation in Compton scattering", R. H. Pratt, L. A. LaJohn, T. Suric, B. K. Chatterjee, S. C. Roy, published Nucl. Instr. Methods B 261, 175-179 (2007).
	560		"Asymmetry and the shift of the Compton profile", B. K. Chatterjee, S. C. Roy, T. Suric, L. A. LaJohn, R. H. Pratt, accepted for NIM A.
	561		"Comment on: 'Photoionization of He-like ions in asymptotic non-relativistic region' [Phys. Lett. A358 (2006) 211] ", T. Suric and R. H. Pratt, accepted for Phys. Lett. A.

6

Funding

Pittsburgh Proposals

	Pittsburgh Awards
NSF 0456499		7/1/05 - 6/30//08

Other Awards

Due Dates

7	Recent Preprints

8		Recent Papers
	a	Avdonina	"What can one do with Regge Poles", NIM B 261, 133 (07), Sokolovski et al
	b	Suric	"Single photoeffect on helium-like ions", PLA 368, 391 (07), Mihailov, Nefiodov, Plunien

9		Review of Literature:
	a		Suric	"Boundary solutions of 2-electron Schrodinger equation at two-particle coalescences", PRA 73, 012514 (06) Liverts et al
	b		Pratt	"Modified Kolbensvedt method for electron impact K shell ionization cross sections", EPJ D 37, 361 (2006) Uddin et al
	c		Pratt	"Coincidence and Total Photoelectron Spectra and Differences Induced by Internal Degrees of Freedom", PRL 96, 233001 (06) Scheit & Cederbaum
	d		Suric	"Different escape modes in two-photon double ionization of helium", PRA 75, 024702 (07) Kheifets, Ivanov, Bray
	e		Suric	"Asymptotic near-nucleus structure of electron-interaction potential", PRA 75, 032517 (07) Qian, Sahni
	f		Suric	"Perturbative calculation of cross section of double ionization by high energy Compton scattering". EPJ D 42, 360 (07) Kalliman, Pisk, Suric
	g		Suric	"Nodal surfaces of helium atom eigenfunctions", PRA 75, 060101 R (07) Scott, Luchow, Bressanini, Morgan
	h		Avdonina	"Octupole contributions to GOS of discrete dipole transitions in noble-gas atoms", PRA 75, 062703 (07) Amusia et al
	i		Pratt	"Siegert pseudostate formulation of scattering theory; non-zero angular momentum", PRA 75, 062704 (07) Batishchev, Tolstikhin
	j		Suric	"Simple parameter-free wavefunction for ground state of two-electron atoms", JPB 40, 2695 (07) Ancarani, Rodriguez, Gasaneo
	k		Avdonina	"Regge oscillations in electron-atom elastic cross sections", PRA 76, 012705 (07), Sokolovski et al
	l		Suric	"Second order S-matrix element for elatic scattering of photons by K shell electrons: nonrelativistic limit", JPB 40, 2995 (07) Costescu et al
	m		Pratt	"Relativistic & nonrelativistic electron descriptions in high-energy atomic collisions", JPB 40, 2885 (07), Voitkiv

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	“Some notes on analytic continuation of the Coulomb dipole matrix element:, O. I. Obolensky and R. H. Pratt
	d	“Singularities of the Dipole Matrix Element”, D. B. Uskov & R. H. Pratt
	e	“Regge ideas in bremsstrahlung”, D. B. Uskov & R. H. Pratt

12		Work in Progress
	Avdonina		Regge trajectories
	Kim (YS)		qm observables
	Lajohn		Compton scatt
	Suric		AFT in scattering Stobbe & Elwert factors

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.