Abstract
The dynamics of the complete breakup process in an Ortho Ps-He+ system including electron loss to the continuum (ELC) is studied where both the projectile and the target get ionized simultaneously. The process is essentially a four body problem and the present model takes account of the two centre effect on the electron ejected from the Ps-atom which is crucial for a proper description of the ELC phenomena. The calculations are performed in the framework of Coulomb distorted eikonal approximation. The exchange effect between the target and the projectile electron is taken into account in a consistent manner. Interesting features are noted in the dynamics (FDCS) for both the electrons belonging to the target and the projectile. A distinct broad ELC peak is noted in the fully differential cross sections (FDCS) for the Ps electron. The exchange effect is found to play a dominant role in the FDCS both quantitatively and qualitatively depending on the kinematics.
Similar content being viewed by others
References
D.R. Bates, G.W. Griffing, Proc. Phys. Soc. London A 67, 663 (1954)
G.B. Crooks, M.E. Rudd, Phys. Rev. Lett. 25, 1599 (1970)
D. Burch, H. Wieman, W.B. Ingalls, Phys. Rev. Lett. 30, 823 (1973)
L. Gulyas, G. Szabo, A. Kover, D. Berenyi, O. Heil, K.O. Groeneveld, Phys. Rev. A 39, 4414 (1989)
D.H. Lee, P. Richard, T.J.M. Zouror, J.M. Sanders, J.L. Shinpaugh, H. Hidmi, Phys. Rev. A 41, 4816 (1990)
L. Gulyas, L. Sarkadi, J. Palinkas, A. Kover, T. Vajnai, G. Szabo, J. Vegh, D. Berenyi, S.B. Etson, Phys. Rev. A 45, 4535 (1992)
K. Kuzel, L. Sarkadi, J. Palinkas, P.A. Zavodszky, R. Maier, D. Berenyi, K.O. Groeneveid, Phys. Rev. A 48, R1745 (1993)
N. Stolterfoht, R.D. DuBois, R.D. Rivarola, Electron emission in heavy ion atom collisions (Springer, Berlin, 1997)
B.B. Dhal, L.C. Tribedi, U. Tikwari, K.V. Thulasiram, P.N. Tandon, T.G. Lee, C.D. Lin, L. Gulyas, Phys. Rev. A 62, 022714 (2000)
D. Misra, U. Khadane, Y.P. Singh, L.C. Tribedi, P.D. Fainsten, P. Richard, Phys. Rev. Lett. 92, 153201 (2004)
D. Misra, A.H. Kelkar, U. Khadane, A. Kumar, Y.P. Singh, L.C. Tribedi, P.D. Fainsten, Phys. Rev. A 75, 052712 (2007)
A.H. Kelkar, D. Misra, L.C. Tribedi, J. Phys. Conf. Ser. 80, 012010 (2007)
A.J. Garner, A.O. Zen, G. Laricchia, Nucl. Instrum. Methods Phys. Res. B 33, 1149 (2000)
A.O. Zen, A.J. Garner, G. Laricchia, Nucl. Instrum. Methods Phys. Res. B 171, 172 (2000)
S.J. Brawley, S. Armitage, J. Beale, D.E. Leslie, A.I. Williams, G. Laricchia, Science 330, 789 (2010)
S.J. Brawley, J. Beale, S. Armitage, D.E. Leslie, A. Kover, G. Laricchia, Nucl. Instrum. Methods Phys. Res. B 266, 497 (2008)
D. Schnieder, M. Prost, N. Stolterfoht, G. Nolte, R. DuBois, Phys. Rev. A 28, 649 (1983)
D.H. Jakubassa Amundsen, J. Phys. B: At. Mol. Opt. Phys. 23, 3335 (1990)
H. Atan, W. Steckelmacher, M.W. Lucas, J. Phys. B 23, 2579 (1990)
J. Wang, O. Reinhold Carlos, J. Burgdorfer, Phys. Rev. A 44, 7243 (1991)
I.F. Barna, A.C. Gagyi-Palffy, L. Gulyas, K. Tokesi, J. Burgdorfer, Nucl. Instrum. Methods Phys. Res. B 233, 176 (2005)
S. Armitage, D.E. Leslie, A.J. Garner, G. Laricchia, Phys. Rev. Lett. 89, 173402 (2002)
L. Sarkadi, Phys. Rev. A 68, 032706 (2003)
S. Roy, D. Ghosh, C. Sinha, J. Phys. B 38, 2145 (2005)
C. Starrett, M.T. McAlinden, H.R.J. Walters, Phys. Rev. A 72, 012508 (2005)
H. Ray, Phys. Lett. A 373, 789 (2009)
S. Roy, C. Sinha, Phys. Rev. A 80, 022713 (2009)
K.F. Canter, Positron scattering in Gases, edited by J.W. Humberston, M.R.C. McDowell (Plenum, New York, 1984), p. 219
M.I. Barker, B.H. Bransden, J. Phys. B 1, 1109 (1968)
P.K. Biswas, S.K. Adhikari, Phys. Rev. A 59, 363 (1999)
M. Brauner, J. Briggs, H. Klar, J. Phys. B 22, 2265 (1989)
R. Biswas, C. Sinha, Phys. Rev. A 50, 354 (1994)
H.M. Fried, K. Kang, B.H.J. McKellar, Phys. Rev. A 28, 738 (1983)
A.W. Malcherek, J.M. Rost, J.S. Briggs, Phys. Rev. A 55, R3979 (1997)
C. Sinha, N.C. Sil, J. Phys. B 11, L333 (1978)
B. Nath, C. Sinha, J. Phys. B 33, 5525 (2000)
D. Ghosh, C. Sinha, Phys. Rev. A 69, 052717 (2004)
H. Ehrhardt, M. Schulz, T. Tekaat, K. Willman, Phys. Rev. Lett. 22, 89 (1969)
G. Laricchia, S. Armitage, D.E. Leslie, Nucl. Instrum. Methods Phys. Res. B 221, 60 (2004)
S. Armitage, J. Beale, D. Leslie, G. Laricchia, Nucl. Instrum. Methods Phys. Res. B 233, 88 (2005)
D. Ghosh, C. Sinha, J. Phys. B 38, 61 (2005)
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Ghosh, D., Mukhopadhyay, S. & Sinha, C. Complete break up of ortho positronium (Ps)-hydrogenic ion system. Eur. Phys. J. D 67, 85 (2013). https://doi.org/10.1140/epjd/e2013-30322-5
Received:
Revised:
Published:
DOI: https://doi.org/10.1140/epjd/e2013-30322-5