| 000 | 02560nlm1a2200409 4500 | ||
|---|---|---|---|
| 001 | 658077 | ||
| 005 | 20231030041537.0 | ||
| 035 | _a(RuTPU)RU\TPU\network\25150 | ||
| 090 | _a658077 | ||
| 100 | _a20180515a2017 k y0engy50 ba | ||
| 101 | 0 | _aeng | |
| 102 | _aUS | ||
| 135 | _adrcn ---uucaa | ||
| 181 | 0 | _ai | |
| 182 | 0 | _ab | |
| 200 | 1 |
_aTest of the multiquark structure of a1(1420) in strong two-body decays _fT. Gutsche [et al.] |
|
| 203 |
_aText _celectronic |
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| 300 | _aTitle screen | ||
| 320 | _a[References: 24 tit.] | ||
| 330 | _aWe present an analysis of strong two-body decays of the a1(1420) with JPC=1++ recently reported by the COMPASS Collaboration at CERN. Following the interpretation of the COMPASS Collaboration that the a1 is an unusual state with a four-quark q¯qs¯s structure we consider two possible configurations for this state-hadronic molecular and color diquark-antidiquark structures. We find that the dominant decay mode of the a1 is the decay into K and K∗. In particular, we calculate that the four decay modes a1→VP with VP=K*±K∓, K*0¯K0, ¯K*0K0 together give a dominant contribution to the measured total width of about 150 MeV. The observational mode a1→f0(980)+π0 is significantly suppressed by one order of magnitude. | ||
| 333 | _aРежим доступа: по договору с организацией-держателем ресурса | ||
| 461 |
_tPhysical Review D _oparticles, fields, gravitation, and cosmology _d1970- |
||
| 463 |
_tVol. 96, iss. 11 _v[114004, 10 p.] _d2017 |
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| 610 | 1 | _aэлектронный ресурс | |
| 610 | 1 | _aтруды учёных ТПУ | |
| 610 | 1 | _aтетракварки | |
| 610 | 1 | _aанализ | |
| 610 | 1 | _aраспад | |
| 701 | 1 |
_aGutsche _bT. _gThomas |
|
| 701 | 1 |
_aIvanov _bM. A. _gMikhail |
|
| 701 | 1 |
_aKorner _bJ. G. _gJurgen |
|
| 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 |
|
| 701 | 0 | _aXu Kai | |
| 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 _c20180515 _gRCR |
|
| 856 | 4 | _uhttps://doi.org/10.1103/PhysRevD.96.114004 | |
| 942 | _cCF | ||