Production of scalar {ital K{bar K}} molecules in {phi} radiative decays
- Laboratory of Theoretical Physics, S. L. Sobolev Institute for Mathematics, Novosibirsk 90, 630090 (Russia)
The potentialities of the production of the scalar K{bar K} molecules in {phi} radiative decays are considered beyond the narrow resonance width approximation. It is shown that B{bold (}{phi}{r_arrow}{gamma}f{sub 0}(a{sub 0}){r_arrow}{gamma}{pi}{pi}({pi}{eta}){bold )} {approx}(1{minus}2){times}10{sup {minus}5}, B{bold (}{phi}{r_arrow}{gamma}(f{sub 0}+a{sub 0}){r_arrow}{gamma}K{sup +}K{sup {minus}}{bold )}{approx_lt}10{sup {minus}6}, and B{bold (}{phi}{r_arrow}{gamma}(f{sub 0}+a{sub 0}){r_arrow}{gamma}K{sub S}K{sub S}{bold )}{lt}5{times}10{sup {minus}8}. The mass spectra in the {pi}{pi}, {pi}{eta}, K{sup +}K{sup {minus}} channels are calculated. The imaginary part of the amplitude {phi}{r_arrow}{gamma}f{sub 0}(a{sub 0}) is calculated analytically. The phase of the scalar resonance production amplitude that causes the interference patterns in the reaction e{sup +}e{sup {minus}}{r_arrow}{gamma}{pi}{sup +}{pi}{sup {minus}} in the {phi} meson mass region is obtained. {copyright} {ital 1997} {ital The American Physical Society}
- OSTI ID:
- 531960
- Journal Information:
- Physical Review, D, Vol. 56, Issue 1; Other Information: PBD: Jul 1997
- Country of Publication:
- United States
- Language:
- English
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