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HADRONIC INVARIANT MASS DISCRIMINATES B-]U CONTRIBUTIONS IN SEMILEPTONIC B-DECAYS

被引：57
|
作者：
BARGER, V
KIM, CS
PHILLIPS, RJN
机构：
[1] UNIV DURHAM,DEPT PHYS,DURHAM DH1 3LE,ENGLAND
[2] RUTHERFORD APPLETON LAB,DIDCOT OX11 0QX,OXON,ENGLAND
来源：
PHYSICS LETTERS B | 1990年 / 251卷 / 04期
关键词：
D O I：
10.1016/0370-2693(90)90808-J
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We point out that directly measuring the invariant mass of final hadrons in B-meson semileptonic decays offers an alternative way to select b --> u transitions that is in principle more efficient than selecting the upper end of the lepton energy spectrum. In practice there are difficulties in determining precisely which hadrons are associated with a particular B decay, but with the advent of microvertex detectors and b-factories this approach may soon become feasible. It may also be possible to measure the hadronic invariant mass approximately via the lepton and neutrino momenta.
引用
收藏
页码：629 / 633
页数：5
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