Nonleptonic two-body decays of single heavy baryons ΛQ, ΞQ, and ΩQ (Q=b, c) induced by W emission in the covariant confined quark model; Physical Review D; Vol. 98, iss. 7
| Parent link: | Physical Review D: covering particles, fields, gravitation, and cosmology Vol. 98, iss. 7.— 2018.— [074011, 21 p.] |
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| מחבר תאגידי: | |
| מחברים אחרים: | , , , |
| סיכום: | Title screen We 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. Режим доступа: по договору с организацией-держателем ресурса |
| שפה: | אנגלית |
| יצא לאור: |
2018
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| נושאים: | |
| גישה מקוונת: | https://doi.org/10.1103/PhysRevD.98.074011 |
| פורמט: | אלקטרוני Book Chapter |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=660048 |
MARC
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| 200 | 1 | |a Nonleptonic two-body decays of single heavy baryons ΛQ, ΞQ, and ΩQ (Q=b, c) induced by W emission in the covariant confined quark model |f Th. Gutsche [et al.] | |
| 203 | |a Text |c electronic | ||
| 300 | |a Title screen | ||
| 320 | |a [References: 76 tit.] | ||
| 330 | |a We 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 | |a Режим доступа: по договору с организацией-держателем ресурса | ||
| 461 | |t Physical Review D |o covering particles, fields, gravitation, and cosmology | ||
| 463 | |t Vol. 98, iss. 7 |v [074011, 21 p.] |d 2018 | ||
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| 701 | 1 | |a Gutsche |b Th. |g Thomas | |
| 701 | 1 | |a Ivanov |b M. A. |g Mikhail Alekseevich | |
| 701 | 1 | |a Korner |b J. C. |g Jurgen | |
| 701 | 1 | |a Lyubovitskiy (Lyubovitskij) |b V. E. |c physicist |c Professor of Tomsk Polytechnic University, Doctor of physical and mathematical sciences, Professor of the University of Tubingen (Germany) |f 1963- |g Valery Efimovich |3 (RuTPU)RU\TPU\pers\33385 |9 17080 | |
| 712 | 0 | 2 | |a Национальный исследовательский Томский политехнический университет |b Исследовательская школа физики высокоэнергетических процессов |c (2017- ) |3 (RuTPU)RU\TPU\col\23551 |
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| 856 | 4 | |u https://doi.org/10.1103/PhysRevD.98.074011 | |
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