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100			_a20220207a2018 k y0engy50 ba
101	0		_aeng
102			_aUS
135			_adrcn ---uucaa
181		0	_ai
182		0	_ab
200	1		_aSystematic few-body analysis of ηd, η3He, and η4He interaction at low energies _fA. I. Fiks (Fix), O. V. Kolesnikov
203			_aText _celectronic
300			_aTitle screen
320			_a[References: 47 tit.]
330			_aThe Alt-Grassberger-Sandhas N-body theory is used to study interaction of η mesons with d, 3 He, and 4 He. Separable expansion of the subamplitudes is adopted to convert the integral equations into the quasi-two-body form. The resulting formalism is applied to fit the existing data for low-energy η production of few-nucleon targets. On the basis of this fitting procedure the scattering lengths aηd , aη 3He, aη 4He as well as the subthreshold behavior of the elementary ηN scattering amplitude are obtained.
461			_tPhysical Review C
463			_tVol. 97, iss. 4 _v[044001, 12 р.] _d2018
610	1		_aтруды учёных ТПУ
610	1		_aэлектронный ресурс
610	1		_aсистематический анализ
610	1		_aнизкие энергии
610	1		_aвзаимодействие
610	1		_aмезоны
610	1		_aмишени
610	1		_aрассеяние
700		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
701		1	_aKolesnikov _bO. V. _gOleg Vladimirovich
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 _c20220207 _gRCR
856	4	0	_uhttps://doi.org/10.1103/PhysRevC.97.044001
942			_cCF