P-WAVE CHARMED MESONS IN E+E- ANNIHILATION

被引：35

作者：

AVERY, P

BESSON, D

GARREN, L

YELTON, J

BOWCOCK, T

KINOSHITA, K

PIPKIN, FM

PROCARIO, M

WILSON, R

WOLINSKI, J

XIAO, D

AMMAR, R

BARINGER, P

HAAS, P

LAM, H

JAWAHERY, A

PARK, CH

NELSON, JK

PERTICONE, D

POLING, R

CHEN, WY

DOMINICK, J

MCILWAIN, RL

MILLER, DH

NG, CR

SCHAFFNER, SF

SHIBATA, EI

YAO, WM

SPARKS, K

THORNDIKE, EH

ALAM, MS

KIM, IJ

LI, WC

LOU, XC

SUN, CR

FULTON, R

HEMPSTEAD, M

JENSEN, T

JOHNSON, DR

KAGAN, H

KASS, R

MORROW, F

WHITMORE, J

BORTOLETTO, D

GOLDBERG, M

HORWITZ, N

MESTAYER, MD

MONETI, GC

SHARMA, V

SHIPSEY, IPJ

机构：

[1] HARVARD UNIV,CAMBRIDGE,MA 02138

[2] UNIV KANSAS,LAWRENCE,KS 66045

[3] UNIV MARYLAND,COLLEGE PK,MD 20742

[4] UNIV MINNESOTA,MINNEAPOLIS,MN 55455

[5] PURDUE UNIV,W LAFAYETTE,IN 47907

[6] UNIV ROCHESTER,ROCHESTER,NY 14627

[7] SUNY ALBANY,ALBANY,NY 12222

[8] OHIO STATE UNIV,COLUMBUS,OH 43210

[9] SYRACUSE UNIV,SYRACUSE,NY 13244

[10] CORNELL UNIV,ITHACA,NY 14853

[11] ITHACA COLL,ITHACA,NY 14850

来源：

PHYSICAL REVIEW D | 1990年 / 41卷 / 03期

关键词：

D O I：

10.1103/PhysRevD.41.774

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Using the CLEO detector at the Cornell Electron Storage Ring, we have found evidence for L=1 charmed mesons in e+e- annihilations. We observe a D**0 state at mass 2461±3±1 MeV/c2 and width 20-12-10+9+9 MeV/c2 decaying to D+-. We also see an enhancement in the m(D*+-)-m(D*+) mass-difference spectrum and by examining D*+ decay-angle dependence, we see structure consistent with two states decaying to D*+-. We observe a lower-mass state, at mass (2428±3±2) MeV/c2 and width (23-6-4+8+10) MeV/c2, assuming that the higher-mass component is from the decay D**0(2461)D*+-. We present arguments for the spin-parity assignments of these states. We also report observation of candidate L=1 cs» state decaying to D*+Ks0. © 1990 The American Physical Society.

引用

页码：774 / 779

页数：6

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