SEMI-LEPTONIC DECAYS ON THE D MESON

被引：131

作者：

BACINO, W

FERGUSON, T

NODULMAN, L

SLATER, W

TICHO, H

DIAMANTBERGER, A

DONALDSON, G

DURO, M

HALL, A

IRWIN, G

KIRKBY, J

MERRITT, F

WOJCICKI, S

BURNS, R

CONDON, P

COWELL, P

KIRZ, J

机构：

[1] STANFORD UNIV,STANFORD LINEAR ACCELERATOR CTR,STANFORD,CA 94305

[2] STANFORD UNIV,DEPT PHYS,STANFORD,CA 94305

[3] SUNY STONY BROOK,DEPT PHYS,STONY BROOK,NY 11794

[4] UNIV CALIF IRVINE,DEPT PHYS,IRVINE,CA 92664

来源：

PHYSICAL REVIEW LETTERS | 1979年 / 43卷 / 15期

关键词：

D O I：

10.1103/PhysRevLett.43.1073

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The electron energy spectrum in the process e+e-(3770)e+(>2 charged particles) has been used to determine the D(56% D0+44% D+) semileptonic branching ratio. Assuming the Glashow-Iliopoulos-Maiani model, it is found that the inclusive branching ratio is b(DXe)=0.0800.015 and the state X is dominated by K and K. The fraction of Ke is (37 16)% if the K system is entirely K*(890), or (55 21)% if the K system is nonresonant. Within the assumptions of the analysis, the D lifetime is calculated to be (2.5 1.6) × 10-13 sec. © 1979 The American Physical Society.

引用

页码：1073 / 1076

页数：4

共 22 条

[1] INCLUSIVE ELECTRON SPECTRUM IN E+E- ANNIHILATION NEAR CHARM THRESHOLD
ALI, A
YANG, TC
[J]. PHYSICS LETTERS B, 1976, 65 (03) : 275 - 278
[2] ALI A, 1979, DESY7912 REP
[3] BACINO W, 1977, PHYS REV LETT B, V70, P387
[4] MULTIHADRON SEMILEPTONIC DECAYS OF CHARMED MESONS
BARGER, V
GOTTSCHALK, T
PHILLIPS, RJN
[J]. PHYSICAL REVIEW D, 1977, 16 (03): : 746 - 771
[5] SEMILEPTONIC DECAYS OF CHARMED MESONS PRODUCED IN ELECTRON-POSITRON ANNIHILATION
BLETZACKER, F
NIEH, HT
SONI, A
[J]. PHYSICAL REVIEW D, 1977, 16 (03): : 732 - 741
[6] SEMILEPTONIC DECAY OF CHARMED HADRONS
BRANDELIK, R
BRAUNSCHWEIG, W
MARTYN, HU
SANDER, HG
SCHMITZ, D
STURM, W
WALLRAFF, W
CORDS, D
FELST, R
FRIES, R
GADERMANN, E
HULTSCHIG, H
JOOS, P
KOCH, W
KOTZ, U
KREHBIEL, H
KREINICK, D
LYNCH, HL
MCNEELY, WA
MIKENBERG, G
MOFFEIT, KC
NOTZ, D
RUSCH, R
SCHLIWA, M
WIIK, BH
WOLF, G
GRINDHAMMER, G
LUDWIG, J
MESS, KH
PETERSEN, A
POELZ, G
RINGEL, J
ROMER, O
SAUERBERG, K
SCHMUSER, P
DEBOER, W
BUSCHHORN, G
FUES, W
VONGAGERN, C
GUNDERSON, B
KOTTHAUS, R
LIERL, H
OBERLACK, H
ORITO, S
SUDA, T
TOTSUKA, Y
YAMADA, S
[J]. PHYSICS LETTERS B, 1977, 70 (03) : 387 - 392
[7] LIFETIME OF CHARMED PARTICLES
CABIBBO, N
MAIANI, L
[J]. PHYSICS LETTERS B, 1978, 79 (01) : 109 - 111
[8] CABIBBO N, 1979, 790279 ROM U REP
[9] EADIE WT, 1971, STATISTICAL METHODS
[10] WEAK DECAYS OF HIGH-MASS HADRONS
ELLIS, J
GAILLARD, MK
NANOPOULOS, DV
[J]. NUCLEAR PHYSICS B, 1975, 100 (02) : 313 - 328

← 1 2 3 →