Abstract
The two-body Salpeter equation is analytically solved for an interaction of exponential form. We see that after using appropriate approximations, the problem appears as the well-known Morse potential whose solutions are already known from the supersymmetry quantum mechanics. The results are useful in some branches of physics and in particular in dealing with heavy quark systems. The solutions are reported for any l.
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References
Salpeter E.E., Bethe H.A.: A relativistic equation for bound-state problems. Phys. Rev. 84, 1232–1242 (1951)
Wick G.C.: Properties of Bethe–Salpeter wave function. Phys. Rev. 96, 1124–1134 (1954)
Pieter M., Roberts C.D.: Dyson Schwinger equations. Int. J. Mod. Phys. E 12, 297–365 (2003)
Chang L., Roberts C.D.: Sketching the Bethe–Salpeter kernel. Phys. Rev. Lett. 103, 081601 (2009)
Roberts C.D., Williams A.G.: Dyson–Schwinger equations and their application to hadronic physics. Prog. Part. Nucl. Phys. 33, 477–575 (1994)
Roberts C.D., Schmidt S.M.: Dyson–Schwinger equations: density, temperature and continuum strong QCD. Prog. Part. Nucl. Phys. 45, 1–103 (2000)
Pieter M., Roberts C.D.: π- and K-meson Bethe–Salpeter amplitudes. Phys. Rev. C 56, 3369–3383 (1997)
Nakanishi N.: A general survey of the theory of the Bethe–Salpeter equation. Prog. Theor. Phys. Suppl. 43, 1–81 (1969)
Li Z.F. et al.: Stability in the instantaneous Bethe–Salpeter formalism: a reduced exact-propagator bound-state equation with harmonic interaction. J. Phys. G: Nucl. Part. Phys 35, 115002 (2008)
Lucha W., Schoberl F.F.: Semirelativistic treatment of bound states. Int. J. Mod. Phys. A 14, 2309–2334 (1999)
Lucha W., Schoberl F.F.: Bound states by the spinless Salpeter equation. Fizika B 8, 193–206 (1999)
Lucha W., Schoberl F.F.: Instantaneous Bethe–Salpeter equation: improved analytical solution. Int. J. Mod. Phys. A 17, 2233 (2002)
Hall R., Lucha W.: Schrödinger upper bounds to semirelativistic eigenvalues. J. Phys. A: Math. Gen 38, 7997 (2005)
Hall R., Lucha W.: Klein–Gordon lower bound to the semirelativistic ground-state energy. Phys. Lett. A 374, 1980–1984 (2010)
Lucha W., Schoberl F.F.: Relativistic Coulomb problem: analytic upper bounds on energy levels. Phys. Rev. A 54, 3790–3794 (1996)
Lucha W., Schöberl F.F.: Accuracy of approximate eigenstates. Int. J. Mod. Phys. A 15, 3221–3236 (2000)
Hall R., Lucha W., Schöberl F.F.: Discrete spectra of semirelativistic hamiltonians. Int. J. Mod. Phys. A 18, 2657–2680 (2003)
Hall R., Lucha W., Schöberl F.F.: Energy bounds for the spinless Salpeter equation: harmonic oscillator. J. Phys. A 34, 5059–5064 (2001)
Hall R., Lucha W., Schöberl F.F.: Discrete spectra of semirelativistic Hamiltonians from envelope theory. Int. J. Mod. Phys. A 17, 1931–1952 (2002)
Hall R., Lucha W.: Semirelativistic stability of N-boson systems bound by 1/r ij pair potentials. J. Phys. A: Math. Theor. 41, 355202 (2008)
Lucha W., Schoberl F.F.: Variational approach to the spinless relativistic Coulomb problem. Phys. Rev. D 50, 5443–5445 (1994)
Hall R., Lucha W., Schoberl F.F.: Energy bounds for the spinless Salpeter equation: harmonic oscillator. J. Phys. A: Math. Gen. 34, 5059 (2001)
Hall R., Lucha W.: Schrödinger secant lower bounds to semirelativistic eigenvalues. Int. J. Mod. Phys. A 22, 1899–1904 (2007)
Lucha W., Schöberl F.F., Gromes D.: Bound states of quarks. Phys. Rep. 200, 127–240 (1991)
Qiang W.C., Dong S.H.: Arbitrary l-state solutions of the rotating Morse potential through the exact quantization rule method. Phys. Lett. A 363, 169 (2007)
Qiang W.C., Dong S.H.: Analytical approximations to the solutions of the Manning Rosen potential with centrifugal term. Phys. Lett. A 368, 13 (2007)
Dong S.H., Qiang W.C., Sun G.H., Bezerra V.B.: Analytical approximations to the l-wave solutions of the Schrödinger equation with the Eckhart potential. J. Phys. A. 40, 10535 (2007)
Wei G.F., Long C.Y., dong S.H.: The scattering of the Manning–Rosen potential with centrifugal term. Phys. Lett. A 372, 2592 (2008)
Dong S.H., Qiang W.C., Garcia-Ravelo J.: Analytical approximations to the SCHRÖDINGER Equation for a Second PÖSCHL-TELLER-LIKE potential with centrifugal term. Int. J. Mod. Phys. A 23, 1537 (2008)
Qiang W.C., Dong S.H.: Analytical approximations to the l-wave solutions of the Klein Gordon equation for a second Pöschl Teller like potential. Phys. Lett. A 372, 4789 (2008)
Wei G.F., dong Wei S.H., Dong: Approximately analytical solutions of the Manning Rosen potential with the spin orbit coupling term and spin symmetry. Phys. Lett. A 373, 49 (2008)
Qiang W.C., Dong S.H.: The Manning–Rosen potential studied by a new approximate scheme to the centrifugal term. Phys. Scr. 79, 045004 (2009)
Qiang W.C., Wu J.Y., Dong S.H.: The Eckart-like potential studied by a new approximate scheme to the centrifugal term. Phys. Scr. 79, 065011 (2009)
Ikhdair S.M., Sever R.: Bound-states of the spinless Salpeter equation for the pt-symmetric generalized Hulthen potential by the Nikiforov–Uvarov Method. Int. J. Mod. Phys. E 17, 1107 (2008)
Jaczko G., Durand L.: Understanding the success of nonrelativistic potential models for relativistic quark–antiquark bound state. Phys. Rev. D 58, 114017 (1998)
Ikhdair S.M., Sever R.: Heavy-quark bound states in potentials with the Bethe–Salpeter equation. Z. Phys. C 56, 155 (1992)
Ikhdair S.M., Sever R.: Bethe–Salpeter equation for non-self conjugate mesons in a power-law potential. Z. Phys. C 58, 153 (1993)
Ikhdair S.M., Sever R.: Spectroscopy of B c meson in a semi-relativistic quark model using the shifted large-N expansion method. Int. J. Mod. Phys. A 19(11), 1771 (2004)
Ikhdair S.M., Sever R.: Mass spectra of heavy quarkonia and B c decay constant for static scalar-vector interactions with relativistic kinematics. Int. J. Mod. Phys. A 20(28), 6509 (2005)
Lucha W.: Bethe–Salpeter equation with instantaneous confinement: establishing stability of bound states. AIP Comf. Proc. 1317, 122 (2010)
Arafah M.R. et al.: Power law potential and quarkonium. Ann. Phys. 220, 55 (1992)
Olson C. et al.: QCD, relativistic flux tubes, and potential models. Phys. Rev. D 45, 4307 (1992)
Durand B., Durand L.: Relativistic duality, and relativistic and radiative corrections for heavy-quark systems. Phys. Rev. D 25, 2312 (1982)
Durand B., Durand L.: Connection of relativistic and nonrelativistic wave functions in the calculation of leptonic widths. Phys. Rev. D 30, 1904 (1984)
Nickisch J., Durand L., Durand B.: Salpeter equation in position space: numerical solution for arbitrary confining potentials. Phys. Rev. D 30, 660 (1984)
Berkdemir C.: Pesudospin symmetry in the relativistic Morse potential including the spin–orbit coupling term. Nucl. Phys. A 770, 32–39 (2006)
Li B.Q., Chao K.T.: Higher charmonia and X, Y, Z states with screened potential. Phys. Rev. D 79, 094004 (2009)
Jaczko G., Durand L.: Understanding the success of nonrelativistic potential models for relativistic quark–antiquark bound states. Phys. Rev. D 58, 114017 (1998)
Junker G.: Supersymmetric Methods in Quantum and Statistical Physics. Springer, Berlin (1996)
Bagchi B.: Supersymmetry in Quantum and Classical Mechanics. Chapman and Hall/CRC, Boca Raton (2000)
Cooper F. et al.: Supersymmetry and quantum mechanics. Phys. Rep. 251, 267–385 (1995)
Lahiri A., Roy P.K., Bagchi B.: Supersymmetry in atomic physics and the radial problem. J. Phys. A 20, 3825 (1987)
Kostelecky V.A., Nieto M.M.: Evidence form alkali-metal-atom transition probabilities for a phenomenological supersymmetry. Phys. Rev. A 32, 1293 (1985)
Kostelecky V.A., Nieto M.M.: Evidence for a phenomenological supersymmetry in atomic physics. Phys. Rev. Lett. 53, 2285 (1984)
Kostelecky V.A., Nieto M.M.: Supersymmetry and the relationship between the Coulomb and oscillator problems in arbitrary dimensions. Phys. Rev. D 32, 3243 (1985)
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Zarrinkamar, S., Rajabi, A.A. & Hassanabadi, H. Solutions of the Two-Body Salpeter Equation Under an Exponential Potential for Any l State. Few-Body Syst 52, 165–170 (2012). https://doi.org/10.1007/s00601-011-0272-3
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DOI: https://doi.org/10.1007/s00601-011-0272-3