Cold hydrogen-hydrogen scattering using CCA model

Sumana Chakraborty1, A. Sen1, A. S. Ghosh1
1Department of Theoretical Physics, Kolkata, India

Tóm tắt

Cold hydrogen-hydrogen scattering has been investigated using close coupling approximation (CCA) model. The total wave function of the system is expanded in terms of atomic expansion basis. The effect of electron exchange and coupling to the continuum of both the atoms are taken into account. Singlet and triplet partial wave elastic and total cross-sections are presented and compared with existing theoretical predictions. Thermally averaged total cross-sections with respect to temperature are also provided along with their earlier results.

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Tài liệu tham khảo

M.H. Anderson, J.R. Ensher, C.E. Wieman, A.E. Cornell, Science 269, 198 (1995)

K.B. Davis, M.O. Mewes, M.R. Andrews, N.J. van Druten, D.S. Durfee, D.M. Kurn, W. Ketterle, Phys. Rev. Lett. 75, 3969 (1995)

C.C. Bradley, C.A. Sackett, J.J. Tollett, R.G. Hulet, Phys. Rev. Lett. 75, 1687 (1995); C.C. Bradley, C.A. Sackett, R.G. Hulet, Phys. Rev. Lett. 78, 985 (1997)

D.G. Fried, T.C. Killan, L. Williams, D. Landhuis, A.C. Moss, T.J. Greytak, D. Kleppner, Phys. Rev. Lett. 81, 3811 (1998)

N. Koyama, J.C. Baird, J. Phys. Soc. Jpn 55, 801 (1986)

M.J. Jamieson, A. Dalgarno, J.N. Yukich, Phys. Rev. A 46, 6956 (1992)

M.E. Gersh, R.B. Bernstein, Chem. Phys. Lett. 4, 221 (1969)

A.C. Allison, A. Dalgarno, Astrophys. J. 158, 423 (1969)

A.C. Allison, F.J. Smith, At. Data 3, 317 (1971)

D.G. Friend, R.D. Etters, J. Low Temp. Phys. 9, 409 (1980)

C. Lhuillier, J. Phys. (Paris) 44, 1 (1983)

E. Tiesinga, Phys. Rev. A 48, 4801 (1993)

M.J. Jamieson, A. Dalgarno, M. Kimura, Phys. Rev. A 51, 2626 (1994)

W. Kolos, L. Wolniewicz, J. Chem. Phys. 41, 3663 (1964)

W. Kolos, L. Wolniewicz, J. Chem. Phys. 43, 2429 (1965)

W. Kolos, L. Wolniewicz, Chem. Phys. Lett. 24, 457 (1974).

W. Kolos, L. Wolniewicz, J. Mol. Spectrosc. 54, 303 (1975)

W. Kolos, K. Szalewicz, H.J. Monkhorst, J. Chem. Phys. 84, 3278 (1986)

D. Frye, G.C. Lie, E. Clementi, J. Chem. Phys. 91, 2366 (1989)

W. Kolos, J. Rychlewski, J. Mol. Spectrosc. 143, 237 (1990)

A. Hershcovitch, Phys. Rev. Lett. 63, 750 (1989)

C.J. Williams, P.S. Julienne, Phys. Rev. A 47, 1524 (1995)

M.J. Jamieson, A. Dalgarno, J. Phys. B 31, L219 (1998)

M.J. Jamieson, B. Zygelman, Phys. Rev. A 64, 032703 (2001)

A. Derevianko, R. Cote, A. Dalgarno, G.H. Jeung, Phys. Rev. A 64, 011404(R) (2001)

P.K. Sinha, A.S. Ghosh, Europhys. Lett. 49, 558 (2000)

P.K. Sinha, A.S. Ghosh, Phys. Rev. A 68, 022504 (2003)

P.K. Sinha, A.S. Ghosh, Phys. Rev. A 72, 052509 (2005)

P.K. Sinha, P. Chaudhuri, A.S. Ghosh, J. Phys. B 30, 4643 (1997)

A.S. Ghosh, A. Basu, T. Mukherjee, P.K. Sinha, Phys. Rev. A 63, 042706 (2001)

A. Chakraborty, P.K. Sinha, A.S. Ghosh, Phys. Rev. A 65, 062504 (2002)

S. Chakraborty, A. Basu, A.S. Ghosh, Nucl. Instrum. Meth. Phys. Res. B 221, 112 (2004)

A. Sen, S. Chakraborty, A.S. Ghosh, Europhys. Lett. 76, 582 (2006)

A.S. Ghosh, N.C. Sil, P. Mandal, Phys. Rep. 87, 313 (1982)

R.J. Damburg, E. Karule, Proc. Phys. Soc. 90, 637 (1967)

S. Chakraborty, A.S. Ghosh, Phys. Rev. A 72, 052508 (2005)

S.H. Patil, K.T. Tang, J. Chem. Phys. 107, 3894 (1997)