Decay chain information on the newly discovered double charm baryon state Ξ++cc; Physical Review D; Vol. 96, iss. 5
| Parent link: | Physical Review D: particles, fields, gravitation, and cosmology.— , 1970- Vol. 96, iss. 5.— 2017.— [054013, 6 p.] |
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| מחבר תאגידי: | |
| מחברים אחרים: | , , , |
| סיכום: | Title screen We interpret the new double charm baryon state found by the LHCb Collaboration in the invariant mass distribution of the set of final state particles (Λ+cK−π+π+) as being at the origin of the decay chain Ξ++cc→Σ++c(→Λ+cπ+)+¯K*0(→K−π+). The nonleptonic decay Ξ++cc→Σ++c+¯K*0 belongs to a class of decays where the quark flavor composition is such that the decay proceeds solely via the factorizing contribution precluding a contamination from internal W-exchange. We use the covariant confined quark model previously developed by us to calculate the four helicity amplitudes that describe the dynamics of the transition Ξ++cc→Σ++c induced by the effective (c→u) current. We then proceed to calculate the rate of the decay as well as the polarization of the Σ++c and Λ+c baryons and the longitudinal/transverse composition of the ¯K*0. We estimate the decay Ξ++cc→Σ++c¯K*0 to have a branching rate of B(Ξ++cc→Σ++c¯K*0)∼10.5%. As a byproduct of our investigation we have also analyzed the decay Ξ++cc→Σ++c¯K0 for which we find a branching ratio of B(Ξ++cc→Σ++c¯K0)∼2.5%. Режим доступа: по договору с организацией-держателем ресурса |
| שפה: | אנגלית |
| יצא לאור: |
2017
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| נושאים: | |
| גישה מקוונת: | https://doi.org/10.1103/PhysRevD.96.054013 |
| פורמט: | אלקטרוני Book Chapter |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=658080 |
MARC
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| 200 | 1 | |a Decay chain information on the newly discovered double charm baryon state Ξ++cc |f T. Gutsche [et al.] | |
| 203 | |a Text |c electronic | ||
| 300 | |a Title screen | ||
| 320 | |a [References: 29 tit.] | ||
| 330 | |a We interpret the new double charm baryon state found by the LHCb Collaboration in the invariant mass distribution of the set of final state particles (Λ+cK−π+π+) as being at the origin of the decay chain Ξ++cc→Σ++c(→Λ+cπ+)+¯K*0(→K−π+). The nonleptonic decay Ξ++cc→Σ++c+¯K*0 belongs to a class of decays where the quark flavor composition is such that the decay proceeds solely via the factorizing contribution precluding a contamination from internal W-exchange. We use the covariant confined quark model previously developed by us to calculate the four helicity amplitudes that describe the dynamics of the transition Ξ++cc→Σ++c induced by the effective (c→u) current. We then proceed to calculate the rate of the decay as well as the polarization of the Σ++c and Λ+c baryons and the longitudinal/transverse composition of the ¯K*0. We estimate the decay Ξ++cc→Σ++c¯K*0 to have a branching rate of B(Ξ++cc→Σ++c¯K*0)∼10.5%. As a byproduct of our investigation we have also analyzed the decay Ξ++cc→Σ++c¯K0 for which we find a branching ratio of B(Ξ++cc→Σ++c¯K0)∼2.5%. | ||
| 333 | |a Режим доступа: по договору с организацией-держателем ресурса | ||
| 461 | |t Physical Review D |o particles, fields, gravitation, and cosmology |d 1970- | ||
| 463 | |t Vol. 96, iss. 5 |v [054013, 6 p.] |d 2017 | ||
| 610 | 1 | |a электронный ресурс | |
| 610 | 1 | |a труды учёных ТПУ | |
| 610 | 1 | |a распад | |
| 610 | 1 | |a барионы | |
| 610 | 1 | |a кварки | |
| 701 | 1 | |a Gutsche |b T. |g Thomas | |
| 701 | 1 | |a Ivanov |b M. A. |g Mikhail | |
| 701 | 1 | |a Korner |b J. G. |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.96.054013 | |
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