Observation of the decay Λ b 0 → ψ(2S)pπ−; Journal of High Energy Physics; № 8
| Parent link: | Journal of High Energy Physics № 8.— 2018.— [131, 19 p.] |
|---|---|
| Corporate Authors: | , |
| Other Authors: | , , , , , , |
| Summary: | Title screen The Cabibbo-suppressed decay Λ b 0 → ψ(2S)pπ− is observed for the first time using a data sample collected by the LHCb experiment in proton-proton collisions corresponding to 1.0, 2.0 and 1.9 fb−1 of integrated luminosity at centre-of-mass energies of 7, 8 and 13 TeV, respectively. The ψ(2S) mesons are reconstructed in the μ+μ− final state. The branching fraction with respect to that of the Λ b 0 → ψ(2S)pK− decay mode is measured to beB(Λ0b→ψ(2S)pπ−)B(Λ0b→ψ(2S)pK−)=(11.4±1.3±0.2)%,B(Λb0→ψ(2S)pπ−)B(Λb0→ψ(2S)pK−)=(11.4±1.3±0.2)%,where the first uncertainty is statistical and the second is systematic. The ψ(2S)p and ψ(2S)π−mass spectra are investigated and no evidence for exotic resonances is found. |
| Language: | English |
| Published: |
2018
|
| Subjects: | |
| Online Access: | http://earchive.tpu.ru/handle/11683/57710 https://doi.org/10.1007/JHEP08(2018)131 |
| Format: | Electronic Book Chapter |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=658997 |
MARC
| LEADER | 00000naa0a2200000 4500 | ||
|---|---|---|---|
| 001 | 658997 | ||
| 005 | 20260807071621.0 | ||
| 035 | |a (RuTPU)RU\TPU\network\27293 | ||
| 035 | |a RU\TPU\network\26871 | ||
| 090 | |a 658997 | ||
| 100 | |a 20181221d2018 k||y0rusy50 ba | ||
| 101 | 0 | |a eng | |
| 135 | |a drcn ---uucaa | ||
| 181 | 0 | |a i | |
| 182 | 0 | |a b | |
| 200 | 1 | |a Observation of the decay Λ b 0 → ψ(2S)pπ− |f R. Aaij [et al.] | |
| 203 | |a Text |c electronic | ||
| 300 | |a Title screen | ||
| 320 | |a [References: 60 tit.] | ||
| 330 | |a The Cabibbo-suppressed decay Λ b 0 → ψ(2S)pπ− is observed for the first time using a data sample collected by the LHCb experiment in proton-proton collisions corresponding to 1.0, 2.0 and 1.9 fb−1 of integrated luminosity at centre-of-mass energies of 7, 8 and 13 TeV, respectively. The ψ(2S) mesons are reconstructed in the μ+μ− final state. The branching fraction with respect to that of the Λ b 0 → ψ(2S)pK− decay mode is measured to beB(Λ0b→ψ(2S)pπ−)B(Λ0b→ψ(2S)pK−)=(11.4±1.3±0.2)%,B(Λb0→ψ(2S)pπ−)B(Λb0→ψ(2S)pK−)=(11.4±1.3±0.2)%,where the first uncertainty is statistical and the second is systematic. The ψ(2S)p and ψ(2S)π−mass spectra are investigated and no evidence for exotic resonances is found. | ||
| 461 | 1 | |t Journal of High Energy Physics | |
| 463 | 1 | |t № 8 |v [131, 19 p.] |d 2018 | |
| 610 | 1 | |a электронный ресурс | |
| 610 | 1 | |a труды учёных ТПУ | |
| 610 | 1 | |a физика | |
| 610 | 1 | |a адронное взаимодействие | |
| 701 | 1 | |a Aaij |b R. |g Roel | |
| 701 | 1 | |a Adeva |b B. |g Bernardo | |
| 701 | 1 | |a Adinolfi |b M. |g Marco | |
| 701 | 1 | |a Aidala |b C. A. |g Christine | |
| 701 | 1 | |a Panshin |b G. L. |c specialist in the field of informatics and computer technology |c Senior Lecturer at Tomsk Polytechnic University |f 1987- |g Gennady Leonidovich |3 (RuTPU)RU\TPU\pers\40978 |9 21367 | |
| 701 | 1 | |a Strokov |b S. A. |c physicist |c engineer of Tomsk Polytechnic University |f 1977- |g Sergey Aleksandrovich |3 (RuTPU)RU\TPU\pers\37442 | |
| 701 | 1 | |a Vagner |b A. R. |c physicist |c Vice-rector for educational activities of Tomsk Polytechnic University, candidate of physical and mathematical sciences |f 1983- |g Aleksandr Rudolfovich |3 (RuTPU)RU\TPU\pers\31560 | |
| 712 | 0 | 2 | |a Национальный исследовательский Томский политехнический университет |b Исследовательская школа физики высокоэнергетических процессов |c (2017- ) |3 (RuTPU)RU\TPU\col\23551 |
| 712 | 0 | 2 | |a Национальный исследовательский Томский политехнический университет |b Инженерная школа информационных технологий и робототехники |c 2017- |x TPU |7 ca |8 rus |9 28330 |
| 801 | 2 | |a RU |b 63413507 |c 20200130 |g RCR | |
| 856 | 4 | |u http://earchive.tpu.ru/handle/11683/57710 | |
| 856 | 4 | |u https://doi.org/10.1007/JHEP08(2018)131 | |
| 942 | |c CF | ||