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100 _a20220207a2018 k y0engy50 ba
101 0 _aeng
135 _aarcn ---uucaa
181 0 _ai
182 0 _ab
200 1 _aNew analysis of ηπ tensor resonances measured at the COMPASS experiment
_fA. Jackura, C. Fernandez-Ramirez, G. Ch. Fox [et al.]
203 _aText
_celectronic
300 _aTitle screen
320 _a[References.: 47 tit.]
330 _aWe present a new amplitude analysis of the ηπ D-wave in the reaction π−p→ηπ−p measured by COMPASS. Employing an analytical model based on the principles of the relativistic S-matrix, we find two resonances that can be identified with the a2(1320) and the excited a2′(1700), and perform a comprehensive analysis of their pole positions. For the mass and width of the a2 we find M=(1307±1±6) MeV and Γ=(112±1±8) MeV, and for the excited state a2′ we obtain M=(1720±10±60) MeV and Γ=(280±10±70) MeV, respectively.
461 _tPhysics Letters B
463 _tVol. 779
_v[P. 464-472]
_d2018
610 1 _aэлектронный ресурс
610 1 _aтруды учёных ТПУ
610 1 _aрезонансы
610 1 _aCOMPASS
610 1 _aволны
610 1 _aтензоры
701 1 _aJackura
_bA.
_gAndrew
701 1 _aFernandez-Ramirez
_bC.
_gCesar
701 1 _aFox
_bG. Ch.
_gGeoffrey Charles
701 1 _aDusaev
_bR. R.
_cspecialist in the field of nuclear physics
_cEngineer of Tomsk Polytechnic University
_f1988-
_gRenat Ramilyevich
_2stltpush
_3(RuTPU)RU\TPU\pers\30972
701 1 _aLevchenko
_bE. A.
_cmathematician
_ctechnician, Senior Lecturer of Tomsk Polytechnic University, candidate of physico-mathematical Sciences
_f1988-
_gEvgeny Anatolievich
_2stltpush
_3(RuTPU)RU\TPU\pers\31735
701 1 _aMamon
_bS. A.
_cphysicist
_claboratory assistant-researcher of Tomsk Polytechnic University
_f1989-
_gSergey Aleksandrovich
_2stltpush
_3(RuTPU)RU\TPU\pers\43559
701 1 _aVasilishin
_bB. I.
_cengineer-physicist
_claboratory researcher at Tomsk Polytechnic University
_f1990-
_gBogdan Ivanovich
_2stltpush
_3(RuTPU)RU\TPU\pers\37572
701 1 _aBurtsev
_bV. E.
_cmathematician
_cSenior Lecturer of Tomsk Polytechnic University
_f1991-
_gVitaly Evgenjevich
_2stltpush
_3(RuTPU)RU\TPU\pers\38282
701 1 _aChumakov
_bA. G.
_cphysicist
_claboratory assistant-researcher of Tomsk Polytechnic University
_f1992-
_gAleksandr Grigorjevich
_2stltpush
_3(RuTPU)RU\TPU\pers\41079
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
712 0 2 _aНациональный исследовательский Томский политехнический университет
_bШкола базовой инженерной подготовки
_bОтделение математики и информатики
_h8031
_2stltpush
_3(RuTPU)RU\TPU\col\23555
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 _uhttps://doi.org/10.1016/j.physletb.2018.01.017
942 _cCF