SEARCH FOR THE DECAY K+-]PI+NU(NU)OVER-BAR

被引：26

作者：

ATIYA, MS

CHIANG, IH

FRANK, JS

HAGGERTY, JS

ITO, MM

KYCIA, TF

LI, KK

LITTENBERG, LS

SAMBAMURTI, A

STEVENS, A

STRAND, RC

LOUIS, WC

AKERIB, DS

MARLOW, DR

MEYERS, PD

SELEN, MA

SHOEMAKER, FC

SMITH, AJS

BLACKMORE, EW

BRYMAN, DA

FELAWKA, L

KITCHING, P

KONAKA, A

KUNO, Y

MACDONALD, JA

NUMAO, T

PADLEY, P

POUTISSOU, JM

POUTISSOU, R

ROY, J

SOLUK, R

TURCOT, AS

机构：

[1] LOS ALAMOS NATL LAB,DIV MEDIUM ENERGY PHYS,LOS ALAMOS,NM 87545

[2] PRINCETON UNIV,JOSEPH HENRY LABS,PRINCETON,NJ 08544

[3] TRIUMF,VANCOUVER V6T 2A3,BC,CANADA

来源：

PHYSICAL REVIEW LETTERS | 1993年 / 70卷 / 17期

关键词：

D O I：

10.1103/PhysRevLett.70.2521

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

An upper limit on the branching ratio for the decay K+ --> pi+nunuBAR is set at 7.5 x 10(-9) (90% C.L.) using the kinematic region above the K(pi2) (K+ --> pi+pi0) peak. When combined with our result from below the K(pi2) peak, we obtain the limit 5.2 x 10(-9). An upper limit of 1.7 x 10(-9) is also found on the branching ratio for decays of the form K+ --> pi+X0 where X0 is any massless, weakly interacting neutral particle. Limits are also set for cases where M(X0) > 0.

引用

页码：2521 / 2524

页数：4

共 16 条

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ATIYA, MS
CHIANG, IH
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KYCIA, TF
LI, KK
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ROY, J
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