兰州大学机构库
Precision measurement of the Lambda(+)(c), Xi(+)(c), and Xi(0)(c) baryon lifetimes
Indexed BySCIE
2019-08
Source PublicationPHYSICAL REVIEW D
ISSN2470-0010
Volume100Issue:3
AbstractWe report measurements of the lifetimes of the Lambda(+)(c), Xi(+)(c) and Xi(0)(c) charm baryons using proton- proton collision data at center- of- mass energies of 7 and 8 TeV, corresponding to an integrated luminosity of 3.0 fb(-1), collected by the LHCb experiment. The charm baryons are reconstructed through the decays Lambda(+)(c) -> pK(-)pi(+),. Xi(+)(c) -> pK(-) pi(+) and Xi(0)(c) -> pK(-) K- pi(+), and originate from semimuonic decays of beauty baryons. The lifetimes are measured relative to that of the D+ meson, and are determined to be tau Lambda(+)(c) = 203.5 +/- 1.0 +/- 1.3 +/- 1.4 fs; tau Xi(+)(c) = 456.8 +/- 3.5 +/- 2.9 +/- 3.1 fs; tau Xi(0)(c) = 154.5 +/- 1.7 +/- 1.6 +/- 1.0 fs; where the uncertainties are statistical, systematic, and due to the uncertainty in the D+ lifetime. The measurements are approximately 3- 4 times more precise than the current world average values. The. +c and Xi(+)(c) lifetimes are in agreement with previous measurements; however, the Xi(0)(c) baryon lifetime is approximately 3.3 standard deviations larger than the world average value.
DOI10.1103/PhysRevD.100.032001
Language英语
WOS Research AreaAstronomy & Astrophysics ; Physics
WOS SubjectAstronomy & Astrophysics ; Physics, Particles & Fields
WOS IDWOS:000478996400001
PublisherAMER PHYSICAL SOC
Original Document TypeArticle
Citation statistics
Cited Times:6[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.lzu.edu.cn/handle/262010/295058
Collection兰州大学
Corresponding AuthorAaij, R.
Affiliation1.CBPF, Rio De Janeiro, Brazil
2.Univ Fed Rio de Janeiro UFRJ, Rio De Janeiro, Brazil
3.Tsinghua Univ, Ctr High Energy Phys, Beijing, Peoples R China
4.Univ Chinese Acad Sci, Beijing, Peoples R China
5.Ihep, Beijing, Peoples R China
6.Univ Grenoble Alpes, Univ Savoie Mt Blanc, CNRS, IN2P3 LAPP, Annecy, France
7.Univ Clermont Auvergne, LPC, CNRS IN2P3, Clermont Ferrand, France
8.Aix Marseille Univ, CPPM, CNRS IN2P3, Marseille, France
9.Univ Paris Saclay, LAL, CNRS IN2P3, Univ Paris Sud, Orsay, France
10.Sorbonne Univ, Paris Diderot Sorbonne Paris Cite, LPNHE, CNRS IN2P3, Paris, France
11.Rhein Westfal TH Aachen, Phys Inst 1, Aachen, Germany
12.Tech Univ Dortmund, Fak Phys, Dortmund, Germany
13.MPIK, Heidelberg, Germany
14.Heidelberg Univ, Phys Inst, Heidelberg, Germany
15.Univ Coll Dublin, Sch Phys, Dublin, Ireland
16.Ist Nazl Fis Nucl, Sez Bari, Bari, Italy
17.Ist Nazl Fis Nucl, Sez Bologna, Bologna, Italy
18.Ist Nazl Fis Nucl, Sez Ferrara, Ferrara, Italy
19.Ist Nazl Fis Nucl, Sez Firenze, Florence, Italy
20.Ist Nazl Fis Nucl, Lab Nazl Frascati, Frascati, Italy
21.Ist Nazl Fis Nucl, Sez Genova, Genoa, Italy
22.Ist Nazl Fis Nucl, Sez Milano Bicocca, Milan, Italy
23.Ist Nazl Fis Nucl, Sez Milano, Milan, Italy
24.Ist Nazl Fis Nucl, Sez Cagliari, Monserrato, Italy
25.Ist Nazl Fis Nucl, Sez Padova, Padua, Italy
26.Ist Nazl Fis Nucl, Sez Pisa, Pisa, Italy
27.Ist Nazl Fis Nucl, Sez Roma Tor Vergata, Rome, Italy
28.Ist Nazl Fis Nucl, Sez Roma La Sapienza, Rome, Italy
29.Nikhef Natl Inst Subat Phys, Amsterdam, Netherlands
30.Vrije Univ Amsterdam, Amsterdam, Netherlands
31.Polish Acad Sci, Henryk Niewodniczanski Inst Nucl Phys, Krakow, Poland
32.AGH Univ Sci & Technol, Fac Phys & Appl Comp Sci, Krakow, Poland
33.Natl Ctr Nucl Res NCBJ, Warsaw, Poland
34.Horia Hulubei Natl Inst Phys & Nucl Engn, Bucharest, Romania
35.NRC KI, PNPI, Gatchina, Russia
36.NRC KI, ITEP, Moscow, Russia
37.Moscow MV Lomonosov State Univ, Inst Nucl Phys, SINP, Moscow, Russia
38.RAS, INR, Moscow, Russia
39.Yandex Sch Data Anal, Moscow, Russia
40.Budker Inst Nucl Phys SB RAS, Novosibirsk, Russia
41.NRC KI, IHEP, Protvino, Russia
42.Univ Barcelona, ICCUB, Barcelona, Spain
43.Univ Santiago de Compostela, IGFAE, Santiago De Compostela, Spain
44.CERN, European Org Nucl Res, Geneva, Switzerland
45.Ecole Polytech Fed Lausanne, Inst Phys, Lausanne, Switzerland
46.Univ Zurich, Phys Inst, Zurich, Switzerland
47.NSC KIPT, Kharkov, Ukraine
48.Natl Acad Sci KINR, Inst Nucl Res, Kiev, Ukraine
49.Univ Birmingham, Birmingham, W Midlands, England
50.Univ Bristol, HH Wills Phys Lab, Bristol, Avon, England
51.Univ Cambridge, Cavendish Lab, Cambridge, England
52.Univ Warwick, Dept Phys, Coventry, W Midlands, England
53.STFC Rutherford Appleton Lab, Didcot, Oxon, England
54.Univ Edinburgh, Sch Phys & Astron, Edinburgh, Midlothian, Scotland
55.Univ Glasgow, Sch Phys & Astron, Glasgow, Lanark, Scotland
56.Univ Liverpool, Oliver Lodge Lab, Liverpool, Merseyside, England
57.Imperial Coll London, London, England
58.Univ Manchester, Sch Phys & Astron, Manchester, Lancs, England
59.Univ Oxford, Dept Phys, Oxford, England
60.MIT, 77 Massachusetts Ave, Cambridge, MA 02139 USA
61.Univ Cincinnati, Cincinnati, OH USA
62.Univ Maryland, College Pk, MD 20742 USA
63.Syracuse Univ, Syracuse, NY USA
64.Lab Math & Subat Phys, Constantine, Algeria
65.Pontificia Univ Catolica Rio de Janeiro PUC Rio, Rio De Janeiro, Brazil
66.South China Normal Univ, Guangzhou, Guangdong, Peoples R China
67.Wuhan Univ, Sch Phys & Technol, Wuhan, Hubei, Peoples R China
68.Cent China Normal Univ, Inst Particle Phys, Wuhan, Hubei, Peoples R China
69.Univ Nacl Colombia, Dept Fis, Bogota, Colombia
70.Univ Rostock, Inst Phys, Rostock, Germany
71.Univ Groningen, Van Swinderen Inst, Groningen, Netherlands
72.Natl Res Ctr Kurchatov Inst, Moscow, Russia
73.Natl Univ Sci & Technol MISIS, Moscow, Russia
74.Natl Res Univ Higher Sch Econ, Moscow, Russia
75.Natl Res Tomsk Polytech Univ, Tomsk, Russia
76.Ctr Mixto Univ Valencia CSIC, Inst Fis Corpuscular, Valencia, Spain
77.Univ Michigan, Ann Arbor, MI 48109 USA
78.LANL, Los Alamos, NM USA
79.Lab Leprince Ringuet, Palaiseau, France
80.Univ Milano Bicocca, Milan, Italy
81.Univ Bologna, Bologna, Italy
82.Univ Modena & Reggio Emilia, Modena, Italy
83.Novosibirsk State Univ, Novosibirsk, Russia
84.Univ Ferrara, Ferrara, Italy
85.Univ Ramon Llull, LIFAELS, Barcelona, Spain
86.Univ Pisa, Pisa, Italy
87.Univ Bari, Bari, Italy
88.Sez INFN Trieste, Trieste, Italy
89.Univ Genoa, Genoa, Italy
90.Univ Milan, Milan, Italy
91.Univ Fed Triangulo Mineiro, Uberaba, MG, Brazil
92.AGH Univ Sci & Technol, Fac Comp Sci Elect & Telecommun, Krakow, Poland
93.Lanzhou Univ, Lanzhou, Gansu, Peoples R China
94.Univ Padua, Padua, Italy
95.Univ Cagliari, Cagliari, Italy
96.MSU IIT, Iligan, Philippines
97.Scuola Normale Super Pisa, Pisa, Italy
98.Hanoi Univ Sci, Hanoi, Vietnam
99.Russian Acad Sci, PN Lebedev Phys Inst, LPI, Moscow, Russia
100.Univ Roma Tor Vergata, Rome, Italy
101.Univ Roma La Sapienza, Rome, Italy
102.Univ Basilicata, Potenza, Italy
103.Univ Urbino, Urbino, Italy
104.Hunan Univ, Phys & Micro Elect Coll, Changsha, Hunan, Peoples R China
105.Shaanxi Normal Univ SNNU, Sch Phys & Informat Technol, Xian, Shaanxi, Peoples R China
Recommended Citation
GB/T 7714
Aaij, R.,Beteta, C. Abellan,Adeva, B.,et al. Precision measurement of the Lambda(+)(c), Xi(+)(c), and Xi(0)(c) baryon lifetimes[J]. PHYSICAL REVIEW D,2019,100(3).
APA Aaij, R..,Beteta, C. Abellan.,Adeva, B..,Adinolfi, M..,Aidala, C. A..,...&Zucchelli, S..(2019).Precision measurement of the Lambda(+)(c), Xi(+)(c), and Xi(0)(c) baryon lifetimes.PHYSICAL REVIEW D,100(3).
MLA Aaij, R.,et al."Precision measurement of the Lambda(+)(c), Xi(+)(c), and Xi(0)(c) baryon lifetimes".PHYSICAL REVIEW D 100.3(2019).
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