IMPROVED SENSITIVITY IN A SEARCH FOR THE RARE DECAY K(L)(0)-]E+E-

被引：7

作者：

ARISAKA, K

AUERBACH, LB

AXELROD, S

BELZ, J

BIERY, KA

BUCHHOLZ, P

CHAPMAN, MD

COUSINS, RD

DIWAN, MV

ECKHAUSE, M

GINKEL, JF

GUSS, C

HANCOCK, AD

HEINSON, AP

HIGHLAND, VL

HOFFMANN, GW

HORVATH, J

IRWIN, GM

JOYCE, D

KAARSBERG, T

KANE, JR

KENNEY, CJ

KETTELL, SH

KINNISON, WW

KNIBBE, P

KONIGSBERG, J

KUANG, Y

LANG, K

LEE, DM

MARGULIES, J

MATHIAZHAGAN, C

MCFARLANE, WK

MCKEE, RJ

MELESE, P

MILNER, EC

MOLZON, WR

OUIMETTE, DA

RILEY, PJ

RITCHIE, JL

RUBIN, P

SANDERS, GH

SCHWARTZ, AJ

SIVERTZ, M

SLATER, WE

URHEIM, J

VULCAN, WF

WAGNER, DL

WELSH, RE

WHYLEY, RJ

WINTER, RG

机构：

[1] TEMPLE UNIV,PHILADELPHIA,PA 19122

[2] STANFORD UNIV,STANFORD,CA 94305

[3] UNIV CALIF IRVINE,IRVINE,CA 92717

[4] UNIV TEXAS,AUSTIN,TX 78712

[5] LOS ALAMOS NATL LAB,LOS ALAMOS,NM 87545

[6] COLL WILLIAM & MARY,WILLIAMSBURG,VA 23187

来源：

PHYSICAL REVIEW LETTERS | 1993年 / 71卷 / 24期

关键词：

D O I：

10.1103/PhysRevLett.71.3910

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

In a search for the decay K(L)0 --> e+e-, no candidates have been observed. We determine the sensitivity from the detected number of CP-violating K(L)0 --> pi+pi- decays and place a 90% confidence level upper limit on the branching ratio of B(K(L)0 --> e+e-, \M(K) - M(ee)\; < 6 MeV/c2) less-than-or-equal-to 4.1 x 10(-11). This result is a significant improvement over previous measurements, although still above the standard model prediction of 3 x 10(-12).

引用

页码：3910 / 3913

页数：4

共 20 条

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