PITT GROUP NOTICE 01-1

GROUP MEETING

GN01-01

January 13, 2001

To:	LaJohn, Obolensky

There will be a group meeting MONDAY January 15, 12 noon, 316AH. Note change in room.
	(Future dates: Fr Jan 19, Fr Feb 2 (3pm), Fr Mar 2, Fr Mar 16 (3pm), Fr Mar 30)

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

2	Meetings	Place	Date

	SynchRad for Research	Campinas, Brasil	Feb 10-13
	AAAS	San Francisco, CA	Feb 15-20
	ECAMP7	Berlin, GE	April 2-6
	APS	Washington, DC	Apr 23-27
	DAMOP	London, ONT	May 16-19
	GC-Atomic Physics	Williams Col, MA	June 17-22
	GC-photoions, ioniz, ,detach	Williams Col, MA	July 8-13
	ICPEAC	Sante 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		DAMOP (Jan 26), ICPEAC (Feb 15)
	Manuscripts
	Registration		DAMOP (April 1), ICPEAC (May 1)

4	Travels, Visitors

	Travel
	Arrivals
	Departures
	Visits	Avdonina (Mar?, May 1-15), Suric (?Mar?, Jul/Aug), A Florescu (c Mar-May), V Florescu (?), Pisk (?), Dondera (c May 14- June 10?), Korol (?Jul-Sept?)

	RHP	Pitt	DC	Travel

	Jan	13-15
		19-21	16-18
			22-1
	Feb	2-4	5-9	10-13	Campinas, Brazil
		14?	14	15-19	SanFrancisco,CA
		20?	21-
	Mar	2-4	-1
		16-18	5-15
		30-	19-29
	Apr	-1	2-
	May			15-19	London, Ont
				25-26	Exeter, UK
	June
	July			18-24	Sante Fe, NM
	Aug

5		Manuscripts

	502		"High energy limit of photon-atom interactions: example of double ionization of He by photoabsorption", R. H. Pratt, E. G. Drukarev, and T. Suric, published by World Scientific in Proceedings of the Conference on Frontiers of Physics.
	513		"Qualitative modification of the high energy atomic photoionization cross section", M. Ya Amusia, N. B. Avdonina, E. G. Drukarev, S. T. Manson, and R. H. Pratt, published Phys. Rev. Lett. 85, 4703-6 (Nov 27 00).
	514		"Results on bremsstrahlung from thick targets, and new diagnostic for electron energy distribution", M. Lamoureux, P. Waller, P. Charles, and N. B. Avdonina, published Phys. Rev. E 62, 4091-4095 (2000).
	517		"Photon-polarization effects and their angular dependence in relativistic two-photon bound-bound transitions", N. L. Manakov, A. V. Meremianin, A. Maquet, and J. P. J. Carney, published J Phys B. 33, 4425-4446 (2000).
	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.
	522		"Correlation effects in the energy spectrum of fast outgoing electrons from double ionization of helium", E. G. Drukarev, N. B. Avdonina, and R. H. Pratt, submitted to J. Phys. B.
	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, being submitted to Phys. Rev. A.

6		Funding

		Pittsburgh Proposals

		Pittsburgh Awards

	NSF 9970293			?7/1/99-

		Other Awards

		Due Dates

7		Recent Preprints

8		Recent Papers

	a	Pratt	"Thomas mechanism in electron capture to the continuum", PRA 62, 062716 (Dec 00), Rodriguez & Barachina
	b	Pratt	"High energy limit of the double-electron photoionization cross section of the helium atom", PRA 62, 064701 (Dec 00), Krivec, Amusia, & Mandelzweig
	c	Pratt	"Experimental demonstration of three mutually orthogonal polarization states of entangled photons", PRL 85, 5013 (Dec 11 00), Tsegaye et al
	d	Obolensky	"Time evolution of quantum fractals", PRL 85, 5022 (Dec 11 00), Wojaik et al"
	e	Obolensky	"Method of approximate treatment of relativistic compound free-free matrix elements", Fedorova, Korol, Solovyov
	f	Pratt	"Classical form factor for transitions in the hydrogen atom", PLA 277, 223(Dec 4 00) Bersons, Kulsh, Veilande
	g	LaJohn, Pratt	"Minima and maxima in GOS", JPB 33, 5397 (Dec 14 00), Chen & Msezane
	h	LaJohn	"Inner-shell photoabsorrption of FE: unimportance of correlation and relativistic effects", PRA A63, 010702 (Jan 01) Gorcyca et al

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	Pratt	"Electron-electron Thomas peak in fast transfer ionization", PRA 62, -32711 (Sept 00) Tolmanov & McGuire
	d	Pratt	"Exact relativistic calculation with retardation of hydrogenic photoeffect matrix elements:", FoundPhys 30, 1283 (Aug 00), Boudet & Blaive
	e	LaJohn	"Relativistic hydrogen atom revisited", AJP 68, 1050 (Nov 00), Martinex-y-Romero
	f	Pratt	(gamma, 2e) in He - practical parametrization of triple differential cross section", JPB 33, 4691 (Nov 14 00), Cvejanovic & Reddish
	g	Pratt	"Absolute differential cross sections for photo double ionization of he from hyperspherical R matrix method", PRL 85, 4450 (Nov 20 00), Malegat, Selles, Kazonsky

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
	*	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
	Carney	Z-dependence of scattering, scatt in Neon
	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, bremsstrahlung, rel 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.