期刊
PHYSICS LETTERS B
卷 734, 期 -, 页码 122-130出版社
ELSEVIER
DOI: 10.1016/j.physletb.2014.05.021
关键词
-
资金
- CERN
- CAPES
- CNPq
- FAPERJ
- FINEP (Brazil)
- NSFC (China)
- CNRS/IN2P3 (France)
- Region Auvergne (France)
- BMBF (Germany)
- DFG (Germany)
- HGF (Germany)
- MPG (Germany)
- SFI (Ireland)
- INFN (Italy)
- FOM (The Netherlands)
- NWO (The Netherlands)
- SCSR (Poland)
- MEN/IFA (Romania)
- MinES (Russia)
- Rosatom (Russia)
- RFBR (Russia)
- NRC Kurchatov Institute (Russia)
- MinECo (Spain)
- XuntaGal (Spain)
- GENCAT (Spain)
- SNSF (Switzerland)
- SER (Switzerland)
- NAS Ukraine (Ukraine)
- STFC (United Kingdom)
- NSF (USA)
- ERC
- IN2P3 (France)
- KIT (Germany)
- SURF (The Netherlands)
- PIC (Spain)
- GridPP (United Kingdom)
- STFC [ST/K001302/1, ST/L001144/1, PP/E003095/1, ST/J005495/1, ST/K00140X/1, ST/L003538/1, ST/H006737/1, ST/H001026/1, ST/H001093/1, PP/E000347/1, ST/K001604/1, ST/G005974/1, ST/H001026/2, ST/K00137X/1, ST/K00073X/1, ST/K003410/1, ST/H001093/2, ST/M001431/1, ST/K502236/1, ST/L003392/1, ST/J004332/1, LHCb, ST/I505572/1, LHCb Upgrades, ST/K001361/1, ST/I000097/1, ST/F007094/1, ST/H001069/2, ST/L006146/1, ST/K003534/1, ST/I003576/1, ST/J004855/1] Funding Source: UKRI
- Division Of Physics
- Direct For Mathematical & Physical Scien [1205805] Funding Source: National Science Foundation
- Science and Technology Facilities Council [ST/L006146/1, ST/I000097/1, GRIDPP, 1225304, ST/L001144/1, ST/K001604/1 GRIDPP, ST/K001604/1 LHCb Upgrades, ST/J004332/1, ST/K001604/1 MICE/UKNF, ST/K003534/1, ST/K001361/1 ATLAS Upgrades, ST/K003534/1 GRIDPP, 1208164, LHCb, PP/E003095/1, ST/I003576/1, ST/L003392/1, ST/K00140X/1 LHCb, ST/J004855/1, PP/E000347/1, ST/K001361/1 LHCb Upgrades, ST/H001093/1, 1225314, ST/K001361/1, ST/K001302/1, ST/K001604/1 CMS Upgrade, 1299204, ST/K001256/1, ST/K001604/1 SuperNEMO, ST/K001361/1 ATLAS, ST/K001604/1 LHCb, LHCb Upgrades, 1096173, ST/M001474/1, ST/K003410/1, ST/K001604/1 DMUK, ST/H006737/1, ST/K502236/1, ST/K001361/1 LHCb, ST/K00073X/1, ST/K00140X/1, ST/F007094/1, ST/K001604/1, ST/J005495/1, ST/K001418/1, ST/H001093/2, ST/K001604/1 T2K, ST/K00137X/1, ST/K003593/1 GRIDPP, ST/M001431/1, ST/H001026/1, ST/H001069/2, ST/K001361/1 MINOS/MINOS+, 1416165, ST/H001026/2, ST/G005974/1, ST/L003538/1, ST/I505572/1] Funding Source: researchfish
The LHCb measurement of the lifetime ratio of the Lambda(0)(b) baryon to the (B) over bar (0) meson is updated using data corresponding to an integrated luminosity of 3.0 fb(-1) collected using 7 and 8 TeV centre-of-mass energy pp collisions at the LHC. The decay modes used are Lambda(0)(b) -> J/psi pK(-) and (B) over bar (0) -> J/psi pi K-+(-), where the pi K-+(-) mass is consistent with that of the (K) over bar*(0)(892) meson. The lifetime ratio is determined with unprecedented precision to be 0.974 +/- 0.006 +/- 0.004, where the first uncertainty is statistical and the second systematic. This result is in agreement with original theoretical predictions based on the heavy quark expansion. Using the current world average of the (B) over bar (0) lifetime, the Lambda(0)(b) lifetime is found to be 1.479 +/- 0.009 +/- 0.010 ps. (C) 2014 The Authors. Published by Elsevier B.V.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据