Measurement of the absolute branching fraction of inclusive semielectronic D-s(+) decays
文献类型：期刊论文
| 作者 | Ablikim, M.3; Achasov, M. N.12,55; Adlarson, P.61; Ahmed, S.17; Albrecht, M.6; Aliberti, R.34; Amoroso, A.62,64,65; An, M. R.38; An, Q.67,82,83; Bai, X. H.73 |
| 刊名 | PHYSICAL REVIEW D
 |
| 出版日期 | 2021-07-09 |
| 卷号 | 104期号:1页码:16 |
| ISSN号 | 2470-0010 |
| DOI | 10.1103/PhysRevD.104.012003 |
| 通讯作者 | Ablikim, M.() |
| 英文摘要 | We measure the inclusive semielectronic decay branching fraction of the D-s(+) meson. A double-tag technique is applied to e(+)e(-) annihilation data collected by the BESIII experiment at the BEPCII collider, operating in the center-of-mass energy range 4.178-4.230 GeV. We select positrons from D (+)(s) -> Xe+nu(e) with momenta greater than 200 MeV/c and determine the laboratory momentum spectrum, accounting for the effects of detector efficiency and resolution. The total positron yield and semielectronic branching fraction are determined by extrapolating this spectrum below the momentum cutoff. We measure the D-s(+) semielectronic branching fraction to be (6.30 +/- 0.13(stat.) +/- 0.09(syst.) +/- 0.04(ext.))%, showing no evidence for unobserved exclusive semielectronic modes. We combine this result with external data taken from literature to determine the ratio of the D-s(+) and D-0 semielectronic widths, Gamma(D-s(+) -> X-e(+)nu(e))/Gamma(D-0 -> X-e(+)nu(e))=0.790 +/- 0.016(stat.) +/- 0.011(syst.) +/- 0.016(ext.). Our results are consistent with and more precise than previous measurements. |
| WOS关键词 | SEMILEPTONIC-B ; FACTORIZATION |
| 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)[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 ; Joint Large-Scale Scientific Facility Funds of the NSFC ; CAS[U1732263] ; CAS[U1832207] ; CAS Key Research Program of Frontier Sciences[QYZDJ-SSW-SLH040] ; 100 Talents Program of CAS ; INPAC and Shanghai Key Laboratory for Particle Physics and Cosmology ; ERC[758462] ; European Union[894790] ; German Research Foundation DFG[443159800] ; Collaborative Research Center[CRC 1044] ; Collaborative Research Center[FOR 2359] ; Collaborative Research Center[GRK 214] ; Istituto Nazionale di Fisica Nucleare, Italy ; Ministry of Development of Turkey[DPT2006K-120470] ; 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] ; Swedish Research Council ; U.S. Department of Energy[DE-FG02-05ER41374] ; U.S. Department of Energy[DE-SC-0012069] |
| WOS研究方向 | Astronomy & Astrophysics ; Physics |
| 语种 | 英语 |
| 出版者 | AMER PHYSICAL SOC |
| WOS记录号 | WOS:000671588900001 |
| 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 ; Joint Large-Scale Scientific Facility Funds of the NSFC ; CAS ; CAS Key Research Program of Frontier Sciences ; 100 Talents Program of CAS ; INPAC and Shanghai Key Laboratory for Particle Physics and Cosmology ; ERC ; European Union ; German Research Foundation DFG ; Collaborative Research Center ; 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 ; Swedish Research Council ; U.S. Department of Energy |
| 源URL | [http://119.78.100.186/handle/113462/137077]  |
| 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.Univ Punjab, Lahore 54590, Pakistan 2.PNPI, NRC Kurchatov Inst, Gatchina 188300, Russia 3.Inst High Energy Phys, Beijing 100049, Peoples R China 4.Beihang Univ, Beijing 100191, Peoples R China 5.Beijing Inst Petrochem Technol, Beijing 102617, Peoples R China 6.Bochum Ruhr Univ, D-44780 Bochum, Germany 7.Carnegie Mellon Univ, Pittsburgh, PA 15213 USA 8.Cent China Normal Univ, Wuhan 430079, Peoples R China 9.China Ctr Adv Sci & Technol, Beijing 100190, Peoples R China 10.COMSATS Univ Islamabad, Lahore Campus,Def Rd,Off Raiwind Rd, Lahore 54000, Pakistan |
| 推荐引用方式 GB/T 7714 | Ablikim, M.,Achasov, M. N.,Adlarson, P.,et al. Measurement of the absolute branching fraction of inclusive semielectronic D-s(+) decays[J]. PHYSICAL REVIEW D,2021,104(1):16. |
| APA | Ablikim, M..,Achasov, M. N..,Adlarson, P..,Ahmed, S..,Albrecht, M..,...&Zou, J. H..(2021).Measurement of the absolute branching fraction of inclusive semielectronic D-s(+) decays.PHYSICAL REVIEW D,104(1),16. |
| MLA | Ablikim, M.,et al."Measurement of the absolute branching fraction of inclusive semielectronic D-s(+) decays".PHYSICAL REVIEW D 104.1(2021):16. |
入库方式： OAI收割
来源：近代物理研究所
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