APPROXIMATE B.S. WAVE FUNCTIONS FOR AN ELECTROMAGNETIC BOUND SYSTEM OF SPINS (1/2, 1/2) OR (1/2, 1/2) WITH UNEQUAL MASSES

  • The Bethe-Salpeter equation for an electromagnetic bound system of spins (1/2—1/2) or (1/2—1/2) with unequal masses are solved in this paper. The approximate B.S. wave functions for these systems are given. Utilising these wave functions, the decay rate and branching ratio for Ξ0→(Σ+μ)+vμ are calculated with accuracy up to order O(α). The results are wΞ0→(Σ+μ)+vμ1.12(1/sec) and R=[wΞ0→(Σ+μ)+vμ]/[wΞ0→(Σ+μ)+vμ]4.7×10-7. Similarly, the process Λ→(pμ)+vμ is also discussed.
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  • [1] 张肇西, 何炬, 何柞麻, 中国科学, 6 (1976), 572;[2] 何炬, 张肇西, 何柞麻, 高能物理与核物理, 3 (1979), 297,[3] Ching Cheng-rui, Ho Tsu-hsiu, Chang Chao-hsi, Phys.Lett., B98 (1981), 456[4] 何炬, 张肇西, 何柞麻, 高能物理与核物理, 3 (1979), 688,[5] Ho Tsu-hsiu, Chang Chao-hsi, Huang Tao, Acta Phys.Sin, 25(1976),215.[6] M. M. Nagels et al., Nucl. Phys., B147 (1979), 189.
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SONG Xiao-Tong, CHING Cheng-Rui and HO Tso-Hsiu. APPROXIMATE B.S. WAVE FUNCTIONS FOR AN ELECTROMAGNETIC BOUND SYSTEM OF SPINS (1/2, 1/2) OR (1/2, 1/2) WITH UNEQUAL MASSES[J]. Chinese Physics C, 1984, 8(5): 531-538.
SONG Xiao-Tong, CHING Cheng-Rui and HO Tso-Hsiu. APPROXIMATE B.S. WAVE FUNCTIONS FOR AN ELECTROMAGNETIC BOUND SYSTEM OF SPINS (1/2, 1/2) OR (1/2, 1/2) WITH UNEQUAL MASSES[J]. Chinese Physics C, 1984, 8(5): 531-538. shu
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Received: 1900-01-01
Revised: 1900-01-01
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APPROXIMATE B.S. WAVE FUNCTIONS FOR AN ELECTROMAGNETIC BOUND SYSTEM OF SPINS (1/2, 1/2) OR (1/2, 1/2) WITH UNEQUAL MASSES

    Corresponding author: SONG Xiao-Tong,

Abstract: The Bethe-Salpeter equation for an electromagnetic bound system of spins (1/2—1/2) or (1/2—1/2) with unequal masses are solved in this paper. The approximate B.S. wave functions for these systems are given. Utilising these wave functions, the decay rate and branching ratio for Ξ0→(Σ+μ)+vμ are calculated with accuracy up to order O(α). The results are wΞ0→(Σ+μ)+vμ1.12(1/sec) and R=[wΞ0→(Σ+μ)+vμ]/[wΞ0→(Σ+μ)+vμ]4.7×10-7. Similarly, the process Λ→(pμ)+vμ is also discussed.

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