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Volumn 62, Issue 16, 1989, Pages 1821-1824

Measurement of the branching fractions for D0-e and D0K-ee and determination of Vcd/Vcs-2

(68)  Adler, J a,b,c,d,e,f   Becker, J J a,b,c,d,e,f   Blaylock, G T a,b,c,d,e,f   Bolton, T a,b,c,d,e,f   Brient, J C a,b,c,d,e,f   Browder, T a,b,c,d,e,f   Brown, J S a,b,c,d,e,f   Bunnell, K O a,b,c,d,e,f   Burchell, M a,b,c,d,e,f   Burnett, T H a,b,c,d,e,f   Cassell, R E a,b,c,d,e,f   Coffman, D a,b,c,d,e,f   Cook, V a,b,c,d,e,f   Coward, D H a,b,c,d,e,f   Dejongh, F a,b,c,d,e,f   Dorfan, D E a,b,c,d,e,f   Drinkard, J a,b,c,d,e,f   Dubois, G P a,b,c,d,e,f   Eigen, G a,b,c,d,e,f   Einsweiler, K F a,b,c,d,e,f   more..


Author keywords

[No Author keywords available]

Indexed keywords


EID: 4143105779     PISSN: 00319007     EISSN: None     Source Type: Journal    
DOI: 10.1103/PhysRevLett.62.1821     Document Type: Article
Times cited : (128)

References (27)
  • 3
    • 84926843848 scopus 로고    scopus 로고
    • The papers are based on analyses of the same data. The first finds |Vcd| = 0.24 +- 0.03 using an average semimuonic branching fraction of (7.1 +- 1.3 ) %. The second finds |Vcd| = 0.21 +- 0.03 using an updated estimate for the average semimuonic branching fraction of (9.3 +- 1.0 )%.
  • 6
    • 84926821812 scopus 로고    scopus 로고
    • Reference to a state shall henceforth also imply reference to its charge conjugate.
  • 9
    • 84926843847 scopus 로고    scopus 로고
    • As the four-momentum of the semileptonic decay candidate is known, the event can be reconstructed with no kinematic ambiguity, in spite of the undetected neutrino.
  • 10
    • 84926821811 scopus 로고    scopus 로고
    • A KS0π+π- can come either from the decay of a D0 or a D bar0; hence both electron signs are accepted.
  • 11
    • 84926800115 scopus 로고    scopus 로고
    • D. M. Coffman, Ph.D. thesis, California Institute of Technology, 1986 (unpublished).
  • 12
  • 13
    • 84926800114 scopus 로고    scopus 로고
    • The TOF alone provides more than 2.0sigma π - K separation over the entire kinematic range.
  • 14
    • 84926800113 scopus 로고    scopus 로고
    • Showers that start in the first three radiation lengths of the calorimeter and deposit more than 0.1 GeV are classified as photons if they are further than 18degr from the nearest charged track.
  • 15
    • 84926843846 scopus 로고    scopus 로고
    • If the TOF criteria are removed, one additional π-e+νe candidate is accepted.
  • 20
    • 84926821810 scopus 로고    scopus 로고
    • The statistical probability that 0.53 event (the expected background) would produce 7 or more observed events is 1.5 times 10-6.
  • 22
    • 84926800112 scopus 로고    scopus 로고
    • They measure Γ (D0-> K-e+νe) / Γ (D0-> K-π+) = 0.91 +- 0.07 +- 0.11.
  • 27
    • 84926865508 scopus 로고    scopus 로고
    • A. G. Frodesen, O. Skjeggestad, and H. Tøfte, Probability and Statistics in Particle Physics (Universitetsforlaget, Bergen, 1979). The marginal likelihood function for |Vcd/ Vcs|2 is obtained from the joint likelihood function for B(D0 -> π-e+νe) and B(D0-> K-e+νe). Our point estimate for |Vcd/ Vcs|2 is the value which maximizes the marginal likelihood function.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.