Measurement of the branching fractions for D0-e and D0K-ee and determination of Vcd/Vcs-2
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Adler, J
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Becker, J J
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Blaylock, G T
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Bolton, T
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Brient, J C
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Browder, T
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Brown, J S
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Bunnell, K O
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Burchell, M
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Burnett, T H
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Cassell, R E
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Coffman, D
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Cook, V
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Coward, D H
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Dejongh, F
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Dorfan, D E
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Drinkard, J
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Dubois, G P
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Eigen, G
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Einsweiler, K F
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Eisenstein, B I
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Freese, T
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Gatto, C
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Gladding, G
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Grab, C
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Hamilton, R P
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Hauser, J
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Heusch, C A
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Hitlin, D G
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Izen, J M
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Kim, P C
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Kopke L
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Li, A
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Lockman, W S
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Mallik, U
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Matthews, C G
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Mincer, A I
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Mir, R
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Mockett, P M
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Mozley, R F
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Nemati, B
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Odian, A
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Parrish, L
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Partridge, R
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Pitman, D
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Plaetzer, S A
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Richman, J D
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Sadrozinski, H F W
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Scarlatella, M
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Schalk, T L
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Schindler, R H
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Seiden, A
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Simopoulos, C
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Spadafora, A L
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Stockdale, I E
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Stockhausen, W
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Toki, W
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Tripsas, B
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Villa, F
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Wasserbaech, S
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Wattenberg, A
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Weinstein, A J
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Weseler, S
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Willutzki, H J
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Wisinski, D
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Wisniewski, W J
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Xu, R
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Zhu, Y
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84926843848
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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 )%.
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6
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84926821812
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Reference to a state shall henceforth also imply reference to its charge conjugate.
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84926843847
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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.
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84926821811
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A KS0π+π- can come either from the decay of a D0 or a D bar0; hence both electron signs are accepted.
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84926800115
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D. M. Coffman, Ph.D. thesis, California Institute of Technology, 1986 (unpublished).
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84926831801
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_ Nu, cl. Instrum, Methods Phys. Res.
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Sect. A
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Brown, J.S.1
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84926800114
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The TOF alone provides more than 2.0sigma π - K separation over the entire kinematic range.
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84926800113
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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.
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84926843846
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If the TOF criteria are removed, one additional π-e+νe candidate is accepted.
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84926821810
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The statistical probability that 0.53 event (the expected background) would produce 7 or more observed events is 1.5 times 10-6.
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84926800112
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They measure Γ (D0-> K-e+νe) / Γ (D0-> K-π+) = 0.91 +- 0.07 +- 0.11.
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84926865508
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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.
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