Extracting low-energy electron-atom scattering parameters from ionic measurements

We analyze different methods to extract from ionic measurements electron-atom scattering parameters, such as the scattering length. Different generalizations of O'Malley et al.'s modified effective range theory, such as for instance Fabrikant's approach or the multichannel theory of W...

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Detalles Bibliográficos
Autor principal: Macri, P.
Otros Autores: Barrachina, Raúl Oscar, Cassimi A, Gervais B, Vernhet D
Formato: Acta de conferencia Capítulo de libro
Lenguaje:Inglés
Publicado: 2003
Acceso en línea:Registro en Scopus
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Registro en la Biblioteca Digital
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100 1 |a Macri, P. 
245 1 0 |a Extracting low-energy electron-atom scattering parameters from ionic measurements 
260 |c 2003 
270 1 0 |m Barrachina, R.O.; Centro Atómico Bariloche, Instituto Balseiro, 8400 S.C. de Bariloche, Rio Negro, Argentina; email: barra@cab.cnea.gov.ar 
504 |a Taylor, J.R., (1972) Scattering Theory: The Quantum Theory on Nonrelativistic Collisions, , New York: John Wiley & Sons 
504 |a Watson, K.M., (1952) Phys. Rev., 88, p. 1163 
504 |a Read, F.H., (1983) Phys. Scr., 27, p. 103 
504 |a Barrachina, R.O., (1997) Nucl. Instr. and Meth. B, 124, p. 198 
504 |a O'Malley, T.F., Spruch, L., Rosenberg, L., (1961) J. Math. Phys., 2, p. 491 
504 |a Macri, P., Barrachina, R.O., (2002) Phys. Rev. A, 65, p. 062718 
504 |a Fabrikant, I.I., (1982) Opt. Spectrosc. (USSR), 53, p. 223 
504 |a Watanabe, S., Greene, C.H., (1980) Phys. Rev. A, 22, p. 158 
504 |a Ward, S.J., Hunnell, J.C., Macek, J.H., (2002) Nucl. Instr. and Meth. B, 192, p. 54 
504 |a Crooks, G.B., Rudd, M.E., (1970) Phys. Rev. Lett., 25, p. 1599 
504 |a Barrachina, R.O., (1990) J. Phys. B, 23, p. 2321 
504 |a Báder, A., Sarkadi, L., Víkor, L., Kuzel, M., Závodszky, P.A., Jalowy, T., Groeneveld, K.O., Barrachina, R.O., (1997) Phys. Rev. A, 55, pp. R14 
504 |a Nesbet, R.K., (1975) Phys. Rev. A, 12, p. 444 
504 |a (1980) J. Phys. B, 13, pp. L193 
504 |a Bae, Y.K., Peterson, J.R., (1985) Phys. Rev. A, 32, p. 1917 
504 |a Haeffler, G., Hanstorp, D., Kiyan, I., Klinkmüller, A.E., Ljungblad, U., Pegg, D., unpublished; Lee, D.H., Pegg, D.J., Hanstorp, D., (2000) Meeting of the Am. Phys. Soc., , Division of Atomic, Molecular and Optical Physics, Storrs, Connecticut, USA, 14-17 June 
506 |2 openaire  |e Política editorial 
520 3 |a We analyze different methods to extract from ionic measurements electron-atom scattering parameters, such as the scattering length. Different generalizations of O'Malley et al.'s modified effective range theory, such as for instance Fabrikant's approach or the multichannel theory of Watanabe and Greene, are used in the literature to fit the experimental data. In this communication we propose a different approach that provides a significant improvement over other methods on a much broader range of energies. We discuss its applicability in the case of negative ion photodetachment and in coincidence measurements of electron capture and loss to the continuum in atomic collisions. © 2003 Elsevier Science B.V. All rights reserved.  |l eng 
593 |a Inst. de Astron./Fis. del Espacio, Casilla de Correo 67, Suc. 28, 1428 Buenos Aires, Argentina 
593 |a Centro Atómico Bariloche, Instituto Balseiro, 8400 S.C. de Bariloche, Rio Negro, Argentina 
690 1 0 |a EFFECTIVE RANGE THEORY 
690 1 0 |a IONIZATION 
690 1 0 |a ELECTRON SCATTERING 
690 1 0 |a ELEMENTARY PARTICLES 
690 1 0 |a IONIZATION 
690 1 0 |a FABRIKANT APPROACH 
690 1 0 |a ATOMIC PHYSICS 
700 1 |a Barrachina, Raúl Oscar 
700 1 |a Cassimi A 
700 1 |a Gervais B 
700 1 |a Vernhet D 
711 2 |c Caen  |d 1 September 2002 through 6 September 2002  |g Código de la conferencia: 60975 
773 0 |d 2003  |g v. 205  |h pp. 543-545  |p Nucl Instrum Methods Phys Res Sect B  |n Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms  |x 0168583X  |w (AR-BaUEN)CENRE-6316  |t HCI - 2001 
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