| 000 | 03026nlm1a2200409 4500 | ||
|---|---|---|---|
| 001 | 660048 | ||
| 005 | 20231030041651.0 | ||
| 035 | _a(RuTPU)RU\TPU\network\28952 | ||
| 035 | _aRU\TPU\network\27778 | ||
| 090 | _a660048 | ||
| 100 | _a20190419a2018 k y0engy50 ba | ||
| 101 | 0 | _aeng | |
| 102 | _aUS | ||
| 135 | _adrcn ---uucaa | ||
| 181 | 0 | _ai | |
| 182 | 0 | _ab | |
| 200 | 1 |
_aNonleptonic two-body decays of single heavy baryons ΛQ, ΞQ, and ΩQ (Q=b, c) induced by W emission in the covariant confined quark model _fTh. Gutsche [et al.] |
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| 203 |
_aText _celectronic |
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| 300 | _aTitle screen | ||
| 320 | _a[References: 76 tit.] | ||
| 330 | _aWe have made a survey of heavy-to-heavy and heavy-to-light nonleptonic heavy baryon two-body decays and have identified those decays that proceed solely via W-boson emission, i.e., via the tree graph contribution. Some sample decays are Ω−b→Ω(*)0cρ−(π−), Ω−b→Ω−J/ψ(ηc), Ξ0,−b→Ξ0,−J/ψ(ηc), Λb→ΛJ/ψ(ηc), Λb→ΛcD(*)s, Ω0c→Ω−ρ+(π+), and Λc→pϕ. We make use of the covariant confined quark model previously developed by us to calculate the tree graph contributions to these decays. We calculate rates, branching fractions and, for some of these decays, decay asymmetry parameters. We compare our results to experimental findings and the results of other theoretical approaches when they are available. Our main focus is on decays to final states with a lepton pair because of their clean experimental signature. For these decays we discuss two-fold polar angle decay distributions such as in the cascade decay Ω−b→Ω−(→Ξπ,ΛK−)+J/ψ(→ℓ+ℓ−). Lepton mass effects are always included in our analysis. | ||
| 333 | _aРежим доступа: по договору с организацией-держателем ресурса | ||
| 461 |
_tPhysical Review D _ocovering particles, fields, gravitation, and cosmology |
||
| 463 |
_tVol. 98, iss. 7 _v[074011, 21 p.] _d2018 |
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| 610 | 1 | _aэлектронный ресурс | |
| 610 | 1 | _aтруды учёных ТПУ | |
| 610 | 1 | _aнелептонные распады | |
| 610 | 1 | _aбарионы | |
| 610 | 1 | _aковариантность | |
| 701 | 1 |
_aGutsche _bTh. _gThomas |
|
| 701 | 1 |
_aIvanov _bM. A. _gMikhail Alekseevich |
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| 701 | 1 |
_aKorner _bJ. C. _gJurgen |
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| 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 _bИсследовательская школа физики высокоэнергетических процессов _c(2017- ) _h8118 _2stltpush _3(RuTPU)RU\TPU\col\23551 |
| 801 | 2 |
_aRU _b63413507 _c20220207 _gRCR |
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| 856 | 4 | _uhttps://doi.org/10.1103/PhysRevD.98.074011 | |
| 942 | _cCF | ||