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101	0		_aeng
135			_adrcn ---uucaa
181		0	_ai
182		0	_ab
200	1		_aFive-Body Integral Equations and Solution of the η−4Nη Problem _fO. V. Kolesnikov, A. I. Fiks (Fix)
203			_aText _celectronic
300			_aTitle screen
320			_a[References: 34 tit.]
330			_aThe Alt-Grassberger-Sandhas equations for the five-body problem are solved for the case of the driving two-body potentials limited to s-waves. The separable pole expansion method is employed to convert the equations into the effective quasi-two-body form. Numerical results are presented for five identical bosons as well as for the system containing an ηη-meson and four nucleons. Accuracy of the separable expansion is investigated. It is shown that both in (1+4)(1+4) and (2+3)(2+3) fragmentation, the corresponding eigenvalues decrease rather rapidly, what, combined with the alternation of their signs, leads to rather good convergence of the results. For the η−4Nη−4N system the crucial influence of the subthreshold behavior of the ηNηN amplitude on the ηη-nuclear low-energy interaction is discussed.
333			_aРежим доступа: по договору с организацией-держателем ресурса
461			_tFew-Body Systems
463			_tVol. 61, iss. 2 _v[18, 10 p.] _d2020
610	1		_aэлектронный ресурс
610	1		_aтруды учёных ТПУ
700		1	_aKolesnikov _bO. V. _gOleg Valerjevich
701		1	_aFiks (Fix) _bA. I. _cmathematician _cProfessor of Tomsk Polytechnic University, doctor of physico-mathematical Sciences _f1968- _gAlexander Ivanovich _2stltpush _3(RuTPU)RU\TPU\pers\33830
712	0	2	_aНациональный исследовательский Томский политехнический университет _bИсследовательская школа физики высокоэнергетических процессов _c(2017- ) _h8118 _2stltpush _3(RuTPU)RU\TPU\col\23551
801		2	_aRU _b63413507 _c20210429 _gRCR
856	4		_uhttps://doi.org/10.1007/s00601-020-01551-7
942			_cCF