MEASUREMENT OF THE DECAY TAU(-)-]PI(-)PI(+)PI(-)2-PI(0)NU-TAU

被引：28

作者：

BORTOLETTO, D

BROWN, DN

FAST, J

MCILWAIN, RL

MIAO, T

MILLER, DH

MODESITT, M

SCHAFFNER, SF

SHIBATA, EI

SHIPSEY, IPJ

WANG, PN

BATTLE, M

ERNST, J

KROHA, H

ROBERTS, S

SPARKS, K

THORNDIKE, EH

WANG, CH

DOMINICK, J

SANGHERA, S

SKWARNICKI, T

STROYNOWSKI, R

ARTUSO, M

HE, D

GOLDBERG, M

HORWITZ, N

KENNETT, R

MONETI, GC

MUHEIM, F

MUKHIN, Y

PLAYFER, S

ROZEN, Y

STONE, S

THULASIDAS, M

VASSEUR, G

ZHU, G

BARTELT, J

CSORNA, SE

EGYED, Z

JAIN, V

SHELDON, P

AKERIB, DS

BARISH, B

CHADHA, M

CHAN, S

COWEN, DF

EIGEN, G

MILLER, JS

OGRADY, C

URHEIM, J

机构：

[1] UNIV ROCHESTER,ROCHESTER,NY 14627

[2] SO METHODIST UNIV,DALLAS,TX 75275

[3] VANDERBILT UNIV,NASHVILLE,TN 37235

[4] CALTECH,PASADENA,CA 91125

[5] UNIV CALIF SAN DIEGO,LA JOLLA,CA 92093

[6] UNIV CALIF SANTA BARBARA,SANTA BARBARA,CA 93106

[7] CARNEGIE MELLON UNIV,PITTSBURGH,PA 15213

[8] UNIV COLORADO,BOULDER,CO 80309

[9] CORNELL UNIV,ITHACA,NY 14853

[10] UNIV FLORIDA,GAINESVILLE,FL 32611

[11] SYRACUSE UNIV,SYRACUSE,NY 13244

[12] HARVARD UNIV,CAMBRIDGE,MA 02138

[13] UNIV ILLINOIS,URBANA,IL 61801

[14] ITHACA COLL,ITHACA,NY 14850

[15] UNIV KANSAS,LAWRENCE,KS 66045

[16] UNIV MINNESOTA,MINNEAPOLIS,MN 55455

[17] SUNY,ALBANY,NY 12222

[18] OHIO STATE UNIV,COLUMBUS,OH 43210

[19] UNIV OKLAHOMA,NORMAN,OK 73019

来源：

PHYSICAL REVIEW LETTERS | 1993年 / 71卷 / 12期

关键词：

D O I：

10.1103/PhysRevLett.71.1791

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The decay tau- --> pi-pi+pi-2pi0nu(tau) has been observed in e+e- annihilation using the CLEO II detector at the Cornell Electron Storage Ring. In a data sample collected at square-root s is similar to 10.6 GeV, 668 +/- 38 decay candidates have been identified by exclusively reconstructing two pi0,s accompanying three charged particles, which are assumed to be pions. Normalizing to the number of tau pairs detected with one charged particle recoiling against three charged particles, this yields a branching ratio of B3pi2pi0 = (0.48 +/- 0.04 +/- 0.04)%. A signal of 430 +/- 33 events for the decay tau- --> pi-omegapi0nu(tau) has also been observed, corresponding to a branching ratio of B(piomegapi)0=(0.39 +/- 0.04 +/- 0.04)%.

引用

页码：1791 / 1795

页数：5

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