| 000 | 03225nlm1a2200457 4500 | ||
|---|---|---|---|
| 001 | 653266 | ||
| 005 | 20231030041214.0 | ||
| 035 | _a(RuTPU)RU\TPU\network\18676 | ||
| 035 | _aRU\TPU\network\17553 | ||
| 090 | _a653266 | ||
| 100 | _a20170220a2016 k y0engy50 ba | ||
| 101 | 0 | _aeng | |
| 102 | _aUS | ||
| 135 | _adrcn ---uucaa | ||
| 181 | 0 | _ai | |
| 182 | 0 | _ab | |
| 200 | 1 |
_aFour-quark structure of the Zc(3900), Z(4430), and Xb(5568) states _fF. Goerke [et al.] |
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| 203 |
_aText _celectronic |
||
| 300 | _aTitle screen | ||
| 320 | _a[References: 44 tit.] | ||
| 330 | _aWe examine the four-quark structure of the recently discovered charged Zc(3900), Z(4430), and Xb(5568) states. We calculate the widths of the strong decays Z+c→J/ψπ+ (ηcρ+, ¯D0D*+, ¯D*0D+), Z(4430)+→J/ψπ+ (ψ(2s)π+), and X+b→Bsπ+ within a covariant quark model previously developed by us. We find that the tetraquark-type current widely used in the literature for the Zc(3900) leads to a significant suppression of the ¯DD∗ and ¯D∗D modes. Contrary to this a molecular-type current provides an enhancement by a factor of 6-7 for the ¯DD∗ modes compared with the Z+c→J/ψπ+, ηcρ+ modes in agreement with recent experimental data from the BESIII Collaboration. In the case of the Z(4430) state we test a sensitivity of the ratio RZ of the Z(4430)+→ψ(2s)π+ and Z(4430)+→J/ψπ+ decay rates to a choice of the size parameter ΛZ(4430) of the Z(4430). Using the upper constraint for the sum of these two modes deduced from the LHCb Collaboration data we find that RZ varies from 4.64 to 4.08 when ΛZ(4430) changes from 2.2 to 3.2 GeV. Also we make the prediction for the Z(4430)+→D*+¯D*0 decay rate. | ||
| 333 | _aРежим доступа: по договору с организацией-держателем ресурса | ||
| 461 |
_tPhysical Review D _oparticles, fields, gravitation, and cosmology _d1970- |
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| 463 |
_tVol. 94, iss. 9 _v[094017] _d2016 |
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| 610 | 1 | _aэлектронный ресурс | |
| 610 | 1 | _aтруды учёных ТПУ | |
| 610 | 1 | _aкварковые модели | |
| 610 | 1 | _aколлаборационизм | |
| 610 | 1 | _aраспад | |
| 610 | 1 | _aмолекулы | |
| 610 | 1 | _aэкспериментальные данные | |
| 701 | 1 |
_aGoerke _bF. _gFabian |
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| 701 | 1 |
_aGutsche _bT. _gThomas |
|
| 701 | 1 |
_aIvanov _bM. A. _gMikhail Alekseevich |
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| 701 | 1 |
_aKorner _bJ. G. _gJurgen |
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| 701 | 1 |
_aSantorelli _bP. _gPietro |
|
| 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 (ТПУ) _bФизико-технический институт (ФТИ) _bКафедра высшей математики и математической физики (ВММФ) _h139 _2stltpush _3(RuTPU)RU\TPU\col\18727 |
| 801 | 2 |
_aRU _b63413507 _c20171122 _gRCR |
|
| 856 | 4 | _uhttps://doi.org/10.1103/PhysRevD.94.094017 | |
| 942 | _cCF | ||