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035 _a(RuTPU)RU\TPU\network\23722
035 _aRU\TPU\network\19457
090 _a657220
100 _a20180118a2008 k y0engy50 ba
101 0 _aeng
_deng
135 _adrcn ---uucaa
181 0 _ai
182 0 _ab
200 1 _aF₀(980)-meson as a KK molecule in a phenomenological Lagrangian approach
_fT. Branz, T. Gutsche, V. E. Lyubovitskiy (Lyubovitskij)
203 _aText
_celectronic
300 _aTitle screen
320 _a[References: p. 316-317]
330 _aWe discuss a possible interpretation of the f ₀(980)-meson as a hadronic molecule —a bound state of K and KK mesons. Using a phenomenological Lagrangian approach we calculate the strong f 0(980) -ππ and electromagnetic f₀(980) - үү decays. The compositeness condition provides a self-consistent method to determine the coupling constant between f₀ and its constituents, K and KK. Form factors governing the decays of the f 0(980) are calculated by evaluating the kaon loop integrals. The predicted f₀(980) - ππ and f₀(980) - γγ decay widths are in good agreement with available data and results of other theoretical approaches.
333 _aРежим доступа: по договору с организацией-держателем ресурса
461 _tThe European Physical Journal A
_oScientific Journal
_d1998-
463 _tVol. 37, iss. 3
_v[P. 303-317]
_d2008
610 1 _aэлектронный ресурс
610 1 _aтруды учёных ТПУ
700 1 _aBranz
_bT.
701 1 _aGutsche
_bT.
701 1 _aLyubovitskiy (Lyubovitskij)
_bV. E.
_cphysicist
_cProfessor of Tomsk Polytechnic University, Doctor of physical and mathematical sciences, Professor of the University of Tubingen (Germany)
_f1963-
_gValery Efimovich
_2stltpush
_3(RuTPU)RU\TPU\pers\33385
801 2 _aRU
_b63413507
_c20180118
_gRCR
856 4 _uhttp://dx.doi.org/10.1140/epja/i2008-10635-1
942 _cCF