P-WAVE RESONANCES IN POSITRON-HYDROGEN SCATTERING

被引：23

作者：

HO, YK

机构：

[1] Dept. of Phys. and Astron., Louisiana State Univ., Baton Rouge, LA

来源：

JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS | 1990年 / 23卷 / 15期

关键词：

D O I：

10.1088/0953-4075/23/15/007

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

P-wave resonances in positron-hydrogen scattering are investigated by using the method of complex-coordinate rotation. Elaborate Hylleraas-type wavefunctions with up to N=1120 terms are used in the present investigation. A resonance below the hydrogen N=2 threshold is found at E=-0.254 112 Ryd with a half width of 1/2 Gamma =8.1*10-6 Ryd. Three resonances below the positronium N=2 threshold are also located. The lowest member is determined to lie at E=-0.148 181 Ryd, with a half width of 1/2 Gamma =0.000 297 Ryd. Error estimates for the resonance parameters are also given.

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页码：L419 / L422

页数：4

相关论文

共 20 条

[1] POSITRON HYDROGEN-ATOM S-WAVE COUPLED-CHANNEL SCATTERING AT LOW ENERGIES [J].

ARCHER, BJ ;

PARKER, GA ;

PACK, RT .

PHYSICAL REVIEW A, 1990, 41 (03) :1303-1310

[2] ELECTRON-HYDROGEN SCATTERING CALCULATION [J].

ARMSTEAD, RL .

PHYSICAL REVIEW, 1968, 171 (01) :91-&

[3] GENERALIZED HYLLERAAS CALCULATION OF POSITRON-HYDROGEN SCATTERING [J].

BHATIA, AK ;

TEMKIN, A ;

DRACHMAN, RJ ;

EISERIKE, H .

PHYSICAL REVIEW A, 1971, 3 (04) :1328-&

[4] Separation of angles in the two-electron problem [J].

Breit, G .

PHYSICAL REVIEW, 1930, 35 (06) :0569-0578

[5] GENERALIZED SCATTERING LENGTH AND RESONANCES IN E+-H S-WAVE SCATTERING [J].

CHOO, LT ;

CROCKER, MC ;

NUTTALL, J .

JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, 1978, 11 (07) :1313-1322

[6] EVIDENCE FOR A RESONANCE IN E+-H S-WAVE SCATTERING [J].

DOOLEN, GD ;

NUTTALL, J ;

WHERRY, CJ .

PHYSICAL REVIEW LETTERS, 1978, 40 (05) :313-315

[7] COMPLEX SCALING - ANALYTIC MODEL AND SOME NEW RESULTS FOR E+ H-RESONANCES [J].

DOOLEN, GD .

INTERNATIONAL JOURNAL OF QUANTUM CHEMISTRY, 1978, 14 (04) :523-528

[8] FESHBACH RESONANCES IN POSITRON-HYDROGEN SCATTERING [J].

DRACHMAN, RJ .

PHYSICAL REVIEW A, 1975, 12 (01) :340-344

[9] INFLUENCE OF CLOSE COUPLING ON THRESHOLD BEHAVIOUR OF CROSS SECTIONS OF ELECTRON-HYDROGEN SCATTERING [J].

GAILITIS, M ;

DAMBURG, R .

PROCEEDINGS OF THE PHYSICAL SOCIETY OF LONDON, 1963, 82 (526) :192-&

[10] ON THE LOWEST RESONANCE IN POSITRON-HYDROGEN SCATTERING BELOW THE N=2 HYDROGEN THRESHOLD [J].

HO, YK .

PHYSICS LETTERS A, 1988, 133 (1-2) :43-45