| 000 | 02582nlm1a2200409 4500 | ||
|---|---|---|---|
| 001 | 660736 | ||
| 005 | 20231030041721.0 | ||
| 035 | _a(RuTPU)RU\TPU\network\30718 | ||
| 090 | _a660736 | ||
| 100 | _a20191016a2019 k y0engy50 ba | ||
| 101 | 0 | _aeng | |
| 102 | _aUS | ||
| 135 | _adrcn ---uucaa | ||
| 181 | 0 | _ai | |
| 182 | 0 | _ab | |
| 200 | 1 |
_aAb initio three-loop calculation of the W-exchange contribution to nonleptonic decays of double charm baryons _fTh. Gutsche [et al.] |
|
| 203 |
_aText _celectronic |
||
| 300 | _aTitle screen | ||
| 320 | _a[References: 19 tit.] | ||
| 330 | _aWe have made an ab initio three-loop quark model calculation of the W-exchange contribution to the nonleptonic two-body decays of the doubly charmed baryons Ξ++cc and Ω+cc. The W-exchange contributions appear in addition to the factorizable tree graph contributions and are not suppressed in general. We make use of the covariant confined quark model previously developed by us to calculate the tree graph as well as the W-exchange contribution. We calculate helicity amplitudes and quantitatively compare the tree graph and W-exchange contributions. Finally, we compare the calculated decay widths with those from other theoretical approaches when they are available. | ||
| 333 | _aРежим доступа: по договору с организацией-держателем ресурса | ||
| 461 |
_tPhysical Review D _ocovering particles, fields, gravitation, and cosmology |
||
| 463 |
_tVol. 99, iss. 5 _v[056013, 7 p.] _d2019 |
||
| 610 | 1 | _aэлектронный ресурс | |
| 610 | 1 | _aтруды учёных ТПУ | |
| 610 | 1 | _aраспады | |
| 610 | 1 | _aбарионы | |
| 610 | 1 | _aковариантность | |
| 701 | 0 |
_aGutsche _bTh. _gThomas |
|
| 701 | 0 |
_aIvanov _bM. A. _gMikhail Alekseevich |
|
| 701 | 1 |
_aKorner _bJ. C. _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 | 1 |
_aTyulemisov _bZh. _gZhomart |
|
| 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 _c20191016 _gRCR |
|
| 856 | 4 | _uhttps://doi.org/10.1103/PhysRevD.99.056013 | |
| 942 | _cCF | ||