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Determination of the absolute branching fractions of D-0 -> K(-)e(+)nu(e) and D+ -> (K)over-bar(0)e(+)nu(e)

文献类型：期刊论文

作者Ablikim, M.72; Achasov, M. N.53,81; Adlarson, P.47; Ahmed, S.87; Albrecht, M.75; Aliberti, R.3; Amoroso, A.42,43,46; An, M. R.7; An, Q.24,39; Bai, X. H.33
刊名PHYSICAL REVIEW D
出版日期2021-09-15
卷号104期号:5页码:10
ISSN号2470-0010
DOI10.1103/PhysRevD.104.052008
通讯作者Ablikim, M.()
英文摘要Using 2.93 fb(-1) of e(+)e(-) collision data collected with the BESIII detector at a center-of-mass energy of 3.773 GeV, we measure the absolute branching fractions of the decays D-0 -> K(-)e(+)nu(e) and D+ -> (K) over bar (0)e(+)nu(e) to be (3.567 +/- 0.031(stat) +/- 0.025(syst))% and (8.68 +/- 0.14(stat) +/- 0.16(syst))%, respectively. Starting with the process e(+)e(- ) -> D (D) over bar, a new reconstruction method is employed to select events that contain candidates for both D -> (K) over bare(+)nu(e) and (D) over bar -> Ke(-)(nu) over bar (e) decays. The branching fractions reported in this work are consistent within uncertainties with previous BESIII measurements that selected events containing D -> (K) over bare(+)nu(e) and hadronic (D) over bar decays. Combining our results with the lifetimes of the D degrees and D+ mesons and the previous BESIII measurements leads to a ratio of the two decay partial widths of (Gamma) over bar (D0 -> K-e+)(nu e)/(Gamma) over bar (D+ -> (K) over bar 0e+)(nu e) = 1.039 +/- 0.021. This ratio supports isospin symmetry in the D-0 -> K(-)e(+)nu(e) and D+ -> (K) over bar (0)e(+)nu(e) decays within 1.9 sigma.
WOS关键词FORM-FACTORS ; DECAYS
资助项目National Key Research and Development Program of China[2020YFA0406400] ; National Key Research and Development Program of China[2020YFA0406300] ; National Natural Science Foundation of China (NSFC)[11775230] ; National Natural Science Foundation of China (NSFC)[11625523] ; National Natural Science Foundation of China (NSFC)[11635010] ; National Natural Science Foundation of China (NSFC)[11735014] ; National Natural Science Foundation of China (NSFC)[11822506] ; National Natural Science Foundation of China (NSFC)[11835012] ; National Natural Science Foundation of China (NSFC)[11935015] ; National Natural Science Foundation of China (NSFC)[11935016] ; National Natural Science Foundation of China (NSFC)[11935018] ; National Natural Science Foundation of China (NSFC)[11961141012] ; Chinese Academy of Sciences (CAS) Large-Scale Scientific Facility Program ; NSFC[U1932102] ; NSFC[U1732263] ; NSFC[U1832207] ; CAS[U1932102] ; CAS[U1732263] ; CAS[U1832207] ; CAS Key Research Program of Frontier Sciences[QYZDJ-SSW-SLH003] ; CAS Key Research Program of Frontier Sciences[QYZDJ-SSW-SLH040] ; 100 Talents Program of CAS ; Shanghai Key Laboratory for Particle Physics and Cosmology ; ERC[758462] ; European Union Horizon 2020 research and innovation programme under Marie Sklodowska-Curie Grant[894790] ; German Research Foundation DFG[443159800] ; German Research Foundation DFG[CRC 1044] ; German Research Foundation DFG[FOR 2359] ; German Research Foundation DFG[GRK 214] ; Istituto Nazionale di Fisica Nucleare, Italy ; Ministry of Development of Turkey[DPT2006K120470] ; National Science and Technology fund ; Olle Engkvist Foundation[200-0605] ; STFC (United Kingdom) ; Knut and Alice Wallenberg Foundation (Sweden)[2016.0157] ; Royal Society, UK[DH140054] ; Royal Society, UK[DH160214] ; U.S. Department of Energy[DE-FG0205ER41374] ; U.S. Department of Energy[DE-SC-0012069] ; Swedish Research Council
WOS研究方向Astronomy & Astrophysics ; Physics
语种英语
出版者AMER PHYSICAL SOC
WOS记录号WOS:000704614500003
资助机构National Key Research and Development Program of China ; National Natural Science Foundation of China (NSFC) ; Chinese Academy of Sciences (CAS) Large-Scale Scientific Facility Program ; NSFC ; CAS ; CAS Key Research Program of Frontier Sciences ; 100 Talents Program of CAS ; Shanghai Key Laboratory for Particle Physics and Cosmology ; ERC ; European Union Horizon 2020 research and innovation programme under Marie Sklodowska-Curie Grant ; German Research Foundation DFG ; Istituto Nazionale di Fisica Nucleare, Italy ; Ministry of Development of Turkey ; National Science and Technology fund ; Olle Engkvist Foundation ; STFC (United Kingdom) ; Knut and Alice Wallenberg Foundation (Sweden) ; Royal Society, UK ; U.S. Department of Energy ; Swedish Research Council
源URL[http://119.78.100.186/handle/113462/136174]  
专题中国科学院近代物理研究所
通讯作者Ablikim, M.
作者单位1.Inst Phys & Technol, Peace Ave 54 B, Ulaanbaatar 13330, Mongolia
2.Jilin Univ, Changchun 130012, Peoples R China
3.Johannes Gutenberg Univ Mainz, Johann Joachim Becher Weg 45, D-55099 Mainz, Germany
4.Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia
5.Justus Liebig Univ Giessen, Phys Inst 2, Heinrich Buff Ring 16, D-35392 Giessen, Germany
6.Lanzhou Univ, Lanzhou 730000, Peoples R China
7.Liaoning Normal Univ, Dalian 116029, Peoples R China
8.Liaoning Univ, Shenyang 110036, Peoples R China
9.Nanjing Normal Univ, Nanjing 210023, Peoples R China
10.Nanjing Univ, Nanjing 210093, Peoples R China
推荐引用方式
GB/T 7714		 Ablikim, M.,Achasov, M. N.,Adlarson, P.,et al. Determination of the absolute branching fractions of D-0 -> K(-)e(+)nu(e) and D+ -> (K)over-bar(0)e(+)nu(e)[J]. PHYSICAL REVIEW D,2021,104(5):10.
APA Ablikim, M..,Achasov, M. N..,Adlarson, P..,Ahmed, S..,Albrecht, M..,...&Zou, J. H..(2021).Determination of the absolute branching fractions of D-0 -> K(-)e(+)nu(e) and D+ -> (K)over-bar(0)e(+)nu(e).PHYSICAL REVIEW D,104(5),10.
MLA Ablikim, M.,et al."Determination of the absolute branching fractions of D-0 -> K(-)e(+)nu(e) and D+ -> (K)over-bar(0)e(+)nu(e)".PHYSICAL REVIEW D 104.5(2021):10.

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来源：近代物理研究所

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