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Ground state and resonance states of Ps  interacting with screened Coulomb (Yukawa) potentials

Ground state and resonance states of Ps  interacting with screened Coulomb (Yukawa) potentials. Sabyasachi Kar and Y. K. Ho Institute of Atomic and Molecular Sciences Academia Sinica, Taipei, Taiwan [18 th International IUPAP Conference on Few-Body Problems in Physics]

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Ground state and resonance states of Ps  interacting with screened Coulomb (Yukawa) potentials

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  1. Ground state and resonance states of Ps interacting with screened Coulomb (Yukawa) potentials Sabyasachi Kar and Y. K. Ho Institute of Atomic and Molecular Sciences Academia Sinica, Taipei, Taiwan [18th International IUPAP Conference on Few-Body Problems in Physics] August 21-26, 2006

  2. Ps, a simplest three lepton system (e+, e, e) Experiment : A P Mills, PRL 46 (1981)717; 50 (1983) 671 P Balling et al, NIMB 221 (2004) 200, D. Schwalm et al, 221(2004) 185 D. B. Cassidy et al, PRL 95(2005) 195006 Theory : Y K Ho, PRA 48 (1993) 4780; G W F Drake et al, PRA 65 (2002) 054501; A M Frolov Phys. Lett. A 342 (2005) 430. Ground-state of Psembedded in Debye plasmas B Saha et al, CPL 373 (2003) 218 Kar and Ho, PRA 71 (2005)052503, CPL 424 (2006) 403 The 1Se and 1, 3Po resonance states of plasma-embedded Ps Kar and Ho, PRA 71 (2005) 052503; PRA 73 (2006) 032502. The Stabilization Method V A Mandelshtam et al, PRL 70(1993) 1932 Ho and co-workers [J Phys B 38 (2005) 3299 and references therein] IntroductionBound and resonance states of Ps in dense plasmas

  3. The Stabilization diagram for the lowest 3Po states of Ps and the fitting of density of states for λD=20. From the fit, we have obtained Er =0.0306920 and = 0.0000970[S. Kar and Y. K. Ho, PRA 73 (2006) 032502]

  4. The 2s21Se resonance energies and widths of Ps under Debye screening S. Kar and Y. K. Ho, Phys. Rev. A 71 (2005) 052503

  5. The lowest 1,3Po resonance energies of Ps under Debye screeningS. Kar and Y. K. Ho, Phys Rev A 73 (2006) 032502

  6. The 1,3Po resonance widths of Ps embedded in Debye plasma[Kar and Ho,PRA 73 (2006) 032503]

  7. The 2s21Se resonance energies of Ps embedded in Debye Plasmas[S. Kar and Y. K. Ho, Phys Rev A 71 (2005) 052503 ] aY K Ho, Chin J Phys 35(1997) 2345, bA. Igarashi et al, J Phys B37, (2004) 4221.

  8. The 1,3Po resonace energies and widths of Ps under Debye Screeing *Bhatia and Ho, PRA 42 (1990) 1119†Igarashi et al , NJP 2 (2000) 17

  9. Acknowledgements • The work is supported by the National Science Council of Taiwan, R.O.C. • I am thankful to Dr Y. K. Ho for suggesting me the problems, and for his immense help and cooperation to solve the problems.

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