Test of lepton universality with Λ0b→pK−ℓ+ℓ−Λb0→pK−ℓ+ℓ− decays; Journal of High Energy Physics; Vol. 2020, iss. 5
| Parent link: | Journal of High Energy Physics Vol. 2020, iss. 5.— 2020.— [40, 26 p.] |
|---|---|
| Corporate Authors: | , |
| Andre forfattere: | , , , , , |
| Summary: | Title screen The ratio of branching fractions of the decays Λ0bΛb0 → pK−e+e− and Λ0bΛb0 → pK−μ+μ−,R−1pKRpK−1, is measured for the first time using proton-proton collision data corresponding to an integrated luminosity of 4.7 fb−1 recorded with the LHCb experiment at center-of-mass energies of 7, 8 and 13 TeV. In the dilepton mass-squared range 0.1 < q2< 6.0 GeV2/c4 and the pK− mass range m(pK−) < 2600 MeV/c2, the ratio of branching fractions is measured to be R−1pK=1.17+0.18−0.16±0.07RpK−1=1.17−0.16+0.18±0.07, where the first uncertainty is statistical and the second systematic. This is the first test of lepton universality with b baryons and the first observation of the decay Λ0bΛb0 → pK−e+e−. |
| Sprog: | engelsk |
| Udgivet: |
2020
|
| Fag: | |
| Online adgang: | http://earchive.tpu.ru/handle/11683/64813 https://doi.org/10.1007/JHEP05(2020)040 |
| Format: | Electronisk Book Chapter |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=662341 |
MARC
| LEADER | 00000naa0a2200000 4500 | ||
|---|---|---|---|
| 001 | 662341 | ||
| 005 | 20250407143501.0 | ||
| 035 | |a (RuTPU)RU\TPU\network\33478 | ||
| 035 | |a RU\TPU\network\33477 | ||
| 090 | |a 662341 | ||
| 100 | |a 20200717d2020 k||y0rusy50 ba | ||
| 101 | 0 | |a eng | |
| 102 | |a US | ||
| 135 | |a drcn ---uucaa | ||
| 181 | 0 | |a i | |
| 182 | 0 | |a b | |
| 200 | 1 | |a Test of lepton universality with Λ0b→pK−ℓ+ℓ−Λb0→pK−ℓ+ℓ− decays |f R. Aaij, C. A. Beteta, T. Ackernley [et al.] | |
| 203 | |a Text |c electronic | ||
| 300 | |a Title screen | ||
| 320 | |a [References: 46 tit.] | ||
| 330 | |a The ratio of branching fractions of the decays Λ0bΛb0 → pK−e+e− and Λ0bΛb0 → pK−μ+μ−,R−1pKRpK−1, is measured for the first time using proton-proton collision data corresponding to an integrated luminosity of 4.7 fb−1 recorded with the LHCb experiment at center-of-mass energies of 7, 8 and 13 TeV. In the dilepton mass-squared range 0.1 < q2< 6.0 GeV2/c4 and the pK− mass range m(pK−) < 2600 MeV/c2, the ratio of branching fractions is measured to be R−1pK=1.17+0.18−0.16±0.07RpK−1=1.17−0.16+0.18±0.07, where the first uncertainty is statistical and the second systematic. This is the first test of lepton universality with b baryons and the first observation of the decay Λ0bΛb0 → pK−e+e−. | ||
| 461 | |t Journal of High Energy Physics | ||
| 463 | |t Vol. 2020, iss. 5 |v [40, 26 p.] |d 2020 | ||
| 610 | 1 | |a электронный ресурс | |
| 610 | 1 | |a труды учёных ТПУ | |
| 610 | 1 | |a B physics | |
| 610 | 1 | |a branching fraction | |
| 610 | 1 | |a Flavour Changing Neutral Currents | |
| 610 | 1 | |a rare decay | |
| 610 | 1 | |a Hadron- Hadron scattering (experiments) | |
| 701 | 1 | |a Aaij |b R. |g Roel | |
| 701 | 1 | |a Beteta |b C. A. |g Carlos Abellan | |
| 701 | 1 | |a Ackernley |b T. | |
| 701 | 1 | |a Kharisova |b A. E. |c nuclear technology specialist |c engineer of Tomsk Polytechnic University |f 1994- |g Anastasiya Evgenjevna |3 (RuTPU)RU\TPU\pers\46775 | |
| 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 | |
| 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 |b Отделение автоматизации и робототехники (ОАР) |3 (RuTPU)RU\TPU\col\23553 |
| 801 | 2 | |a RU |b 63413507 |c 20210318 |g RCR | |
| 856 | 4 | |u http://earchive.tpu.ru/handle/11683/64813 | |
| 856 | 4 | |u https://doi.org/10.1007/JHEP05(2020)040 | |
| 942 | |c CF | ||