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Precision Measurement of the e(+)e(-) -> Lambda(+)(c)(Lambda)over-bar(c)(-) Cross Section Near Threshold
Indexed BySCIE ; PUBMED
2018-03-29
Source PublicationPHYSICAL REVIEW LETTERS
Volume120Issue:3
PublisherAMER PHYSICAL SOC
Publication PlaceCOLLEGE PK
AbstractThe cross section of the e(+)e(-) -> Lambda(+)(c)(Lambda) over bar (-)(c) process is measured with unprecedented precision using data collected with the BESIII detector at root s = 4574.5, 4580.0, 4590.0 and 4599.5 MeV. The nonzero cross section near the Lambda(+)(c)(Lambda) over bar (-)(c) production threshold is cleared. At center-of-mass energies root s = 4574.5 and 4599.5 MeV, the higher statistics data enable us to measure the Lambda(c) polar angle distributions. From these, the.c electric over magnetic form-factor ratios (vertical bar G(E)/G(M)vertical bar) are measured for the first time. They are found to be 1.14 +/- 0.14 +/- 0.07 and 1.23 +/- 0.05 +/- 0.03, respectively, where the first uncertainties are statistical and the second are systematic.
Department
[Ablikim, M.;
An, F. F.;
Bai, J. Z.;
Cai, X.;
Cao, G. F.;
Chang, J. F.;
Chen, G.;
Chen, H. S.;
Chen, J. C.;
Chen, M. L....更多
Subject AreaPhysics
Project NumberNational Key Basic Research Program of China [2015CB856700] ; National Natural Science Foundation of China (NSFC) [11235011, 11335008, 11375205, 11425524, 11625523, 11635010, 11322544, 11375170, 11275189, 11475164, 11475169, 11605196, 11605198, 11505034, 11575077] ; Chinese Academy of Sciences (CAS) Large-Scale Scientific Facility Program ; CAS Center for Excellence in Particle Physics (CCEPP) ; NSFC [U1332201, U1532257, U1532258, U1532102] ; CAS [U1332201, U1532257, U1532258, U1532102, KJCX2-YW-N29, KJCX2-YW-N45, QYZDJ-SSW-SLH003] ; 100 Talents Program of CAS ; National 1000 Talents Program of China ; INPAC and Shanghai Key Laboratory for Particle Physics and Cosmology ; German Research Foundation DFG under Collaborative Research Center [CRC 1044, FOR 2359] ; Istituto Nazionale di Fisica Nucleare, Italy ; Koninklijke Nederlandse Akademie van Wetenschappen (KNAW) [530-4CDP03] ; Ministry of Development of Turkey [DPT2006K-120470] ; National Science and Technology fund ; Swedish Research Council ; U.S. Department of Energy [DE-FG02-05ER41374, DE-SC-0010118, DE-SC-0010504, DE-SC-0012069] ; University of Groningen (RuG) ; Helmholtzzentrum fuer Schwerionenforschung GmbH (GSI), Darmstadt ; WCU Program of the National Research Foundation of Korea [R32-2008-000-10155-0]
Funding Project国家自然科学基金项目 ; 国家重点基础研究发展计划以及国家重大科学研究计划(973计划) ; 美国国家科学基金项目 ; 美国能源部项目 ; 德国科学基金会项目 ; 韩国国家研究基金会项目
Funding OrganizationNSFC ; MOST ; US NSF ; US DOE ; DFG ; Korean NRF
DOI10.1103/PhysRevLett.120.132001
ISSN0031-9007
SubtypeArticle
Language英语
WOS IDWOS:000428653700003
PMID 29694170
First Inst
Citation statistics
Cited Times:7[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.lzu.edu.cn/handle/262010/197210
Collection物理科学与技术学院
Corresponding AuthorAblikim, M (reprint author), Inst High Energy Phys, Beijing 100049, Peoples R China.
Recommended Citation
GB/T 7714
Ablikim, M,Achasov, MN,Ahmed, S,et al. Precision Measurement of the e(+)e(-) -> Lambda(+)(c)(Lambda)over-bar(c)(-) Cross Section Near Threshold[J]. PHYSICAL REVIEW LETTERS,2018,120(3).
APA Ablikim, M.,Achasov, MN.,Ahmed, S.,Albrecht, M.,Alekseev, M.,...&Ablikim, M .(2018).Precision Measurement of the e(+)e(-) -> Lambda(+)(c)(Lambda)over-bar(c)(-) Cross Section Near Threshold.PHYSICAL REVIEW LETTERS,120(3).
MLA Ablikim, M,et al."Precision Measurement of the e(+)e(-) -> Lambda(+)(c)(Lambda)over-bar(c)(-) Cross Section Near Threshold".PHYSICAL REVIEW LETTERS 120.3(2018).
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