GROUP MEETING

GN11-6

April 20, 2011

 

To:

LaJohn

 

There will be a group meeting FRIDAY April 22, 3:00 pm  LaJohnOffice (Room221BAH).

 

(May 20?, June 3,  Jul 1, 15, Aug 12, 26, Sept 23)

 

1

Organizational Issues

a

Appointments, next meeting, other meetings, lectures

 

 

b

Computer issues, finances,

 

2

Meetings

Place

Date

 

 

 

 

 

IWP/RIXS

Las Vegas, NV

May 22-25/25-27

 

DAMOP

Atlanta, GA

June 13-17

 

IRRMA-8

Kansas City, MO

June 26- July 1

 

AtomProcPlasmas

Belfast, UK

July 19-22

 

ICPEAC

Belfast, UK

July 27 - Aug 2

 

e,2e,double photo, polariz&correl

Dublin, Ireland

Aug 4-6

 

TAMOP status

Arlington, VA

Aug 18-19

 

3

Deadlines

 

 

 

 

 

Abstracts

 

 

Manuscripts

 

 

Registration

DAMOP (April 22), IWP (May 1?), ICPEAC (May 16).

 

4

Travels, Visitors

 

 

 

 

Travel

 

 

Arrivals

 

 

Departures

 

 

Visits

Ron (July 1-4), Sen Gupta (fall?), Avdonina (fall?), Surzhykov (Dec ?).

 

 

RHP

Pitt

DC

Travel

 

 

 

 

 

 

 

 

April

22-25

-21

 

 

 

May

5-9

A26-4

 

 

 

 

20-22

10-19

 

Bucharest ??

 

 

 

23-J2

 

 

 

June

3-5

6-12

13-17

Atlanta

 

 

 

18-23

24-26

Kansas City

 

 

 

27-30

 

 

 

July

1-4

5-14

 

 

 

 

15-18

19-25

26-A3

Belfast

 

Aug

12-14

4-11

 

 

 

 

26-28

15-25

 

 

 

Sept

18-

A29-17?

 

Heidelberg??

 

Oct

 

 

8-9

Rio de Janeiro

 

Nov

 

 

? (or 2012)

India??

 

Dec

 

 

 

 

 

5

Manuscripts

 

 

 

 

563

"The Beginnings of ITAMP - Proposals from the AMO Community and the NSF Response",  R. H. Pratt, Proceedings of the Dalgarno Celebratory Symposium,  Imperial College Press (2010), 357-366.

 

564

"Compton scattering revisited", R. H. Pratt, L. A. LaJohn, V. Florescu, T. Suric, B. K. Chatterjee, S. C. Roy, Rad. Phys. Chem. 79, 124-131 (2010).

 

568

"Low-momentum-transfer nonrelativistic limit of the relativistic impulse approximatiom expression for Compton doubly differential cross sections and characterization of their relativistic contributions", L. A. LaJohn, published Phys. Rev. A 81, 043404 (2010).

 

569

"Quadrupole matrix element zeros and their effect on photoelectron angular distributions", L. A. LaJohn, S. T. Manson, R. H. Pratt, Nucl Inst Mthd A,  619, 7-9 (2010).

 

570

"Compton scattering from positronium and validity of impulse approximation", Z. Kalliman, K. Pisk, R. H. Pratt, accepted for PRA

 

6

Funding

 

 

 

 

Pittsburgh Proposals

 

 

 

 

Pittsburgh Awards

 

 

 

 

 

 

Other Awards

 

 

 

 

Due Dates

 

 

 

7

Recent Preprints

 

 

 

 

 

8

Recent Papers

 

 

 

 

 

9

Review of Literature:

 

 

 

 

 

 

a

Pratt

"A comparison of the hydrogenlike dipole radial matrix elements with overlap integrals and a step toward explicit expressions of the multipole matrix elements", Blaive and Cadilhae, PPB 42, 165002 (2009).

 

b           

Pratt

"Absolute differential bremsstrahlung cross sections for 0.4 - 2 keV electrons scattered by Ar, Kr, Xe", Gnatchenko. Nechay, Tkachenko, PRA 80. 022707 (2009)

 

c

Pratt

"Unified ab initio treatment of attosecond  photoionization and Compton scattering", JPB 42, 205601 (09) Yudin et al

 

d

Pratt

“Double photoionization of helium including quadrupole radiation effects”, Ludlow et al, JPB 42, 225204 (09)

 

e

Pratt

“Two photon decay of excited levels in hydrogen: The ambiguity of the separation of cascades and pure two photon emission”, Labzowsky, Solovyev, Plunien, PRA 80, 062514 (09)

 

f

Pratt

“Angular correlations in the two-photon decay of helium-like heavy    elements”, Surzyhkov et al, PRA 81, 042510 (2010)

 

g

Pratt

“Impact of sharp screening on the Coulomb scattering problem in three dimensions”, Yakovkev et al, JPA 43, 245302 (2010)

 

h

Pratt

“Target effects on the linear polarization of photons emitted in radiative electron capture by heavy ions”, Artemyev, Surzhykov et al, PRA 82, 022716 (2010)

 

i

Pratt

“Two-photon decays of highly excited states in hydrogen’, Solovov et al, JPB 43, 175001 (20100

 

j

Pratt

“Electron-atom bremsstrahlung: double-differential cross section and polarization correlations”, Yerokhin & Surzhykov, PRA 82, 062702 (2010)

 

k

Pratt

“Vortex kinematics of a continuum electron pair”, JPB 44, 011001 (2011)

 

l

LaJohn

“Angular dependence of bremsstrahlung produced by 17.5 keV electrons incident on thick Ag”, Requena, Williams, PRA 83, 022712 911)

 

m

LaJohn

“Polarization transfer in relativistic electron-nucleus bremsstrahlung”, PLA 375, 1671 (10) Jakubassa-Amundsen

 

n

LaJohn

“Accurate Compton scattering measurements of noble gases: the importance of electron correlation in heavy atoms’, Sakurai et al, JPB 44, 065001 (10)

 

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

 

f

"Survey of Compton ScatteringDoubly Differential Cross Sections: Future Direction", Chatterjee, Roy, LaJohn, for NIM

 

12

Work in Progress

 

 

 

 

Lajohn

quad 0's, Compton

 

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.