ISOSPIN MASS SPLITTINGS FROM PRECISION-MEASUREMENTS OF D-ASTERISK-D MASS-DIFFERENCES

被引：29

作者：

BORTOLETTO, D

BROWN, DN

DOMINICK, J

MCILWAIN, RL

MIAO, T

MILLER, DH

MODESITT, M

SCHAFFNER, SF

SHIBATA, EI

SHIPSEY, IPJ

BATTLE, M

ERNST, J

KROHA, H

ROBERTS, S

SPARKS, K

THORNDIKE, EH

WANG, CH

SANGHERA, S

SKWARNICKI, T

STROYNOWSKI, R

ARTUSO, M

GOLDBERG, M

HORWITZ, N

KENNETT, R

MONETI, GC

MUHEIM, F

PLAYFER, S

ROZEN, Y

RUBIN, P

STONE, S

THULASIDAS, M

YAO, WM

ZHU, G

BARNES, AV

BARTELT, J

CSORNA, SE

EGYED, Z

JAIN, V

SHELDON, P

AKERIB, DS

BARISH, B

CHADHA, M

COWEN, DF

EIGEN, G

MILLER, JS

URHEIM, J

WEINSTEIN, AJ

ACOSTA, D

MASEK, G

ONG, B

机构：

[1] UNIV ROCHESTER,ROCHESTER,NY 14627

[2] SO METHODIST UNIV,DALLAS,TX 75275

[3] SYRACUSE UNIV,SYRACUSE,NY 13244

[4] VANDERBILT UNIV,NASHVILLE,TN 37235

[5] CALTECH,PASADENA,CA 91125

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

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

[8] CARNEGIE MELLON UNIV,PITTSBURGH,PA 15213

[9] UNIV COLORADO,BOULDER,CO 80309

[10] CORNELL UNIV,ITHACA,NY 14853

[11] UNIV FLORIDA,GAINESVILLE,FL 32611

[12] HARVARD UNIV,CAMBRIDGE,MA 02138

[13] ITHACA COLL,ITHACA,NY 14850

[14] UNIV KANSAS,LAWRENCE,KS 66045

[15] UNIV MINNESOTA,MINNEAPOLIS,MN 55455

[16] SUNY ALBANY,ALBANY,NY 12222

[17] OHIO STATE UNIV,COLUMBUS,OH 43210

[18] UNIV OKLAHOMA,NORMAN,OK 73019

来源：

PHYSICAL REVIEW LETTERS | 1992年 / 69卷 / 14期

关键词：

D O I：

10.1103/PhysRevLett.69.2046

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Using the decay modes D*+ --> D+ pi0 and D*0 --> D0pi0, we have measured the D*+-D+ and D*0-D0 mass differences to be 140.64 +/- 0.08 +/- 0.06 and 142.12 +/- 0.05 +/- 0.05 MeV, respectively. Combining these measurements with the Particle Data Group average for the D*+-D0 mass difference, we obtain isospin mass splittings for D*+-D*0 and D+-D0 of 3.32 +/- 0.08 +/- 0.05 and 4.80 +/- 0.10 +/- 0.06 MeV. We discuss the implications of these measurements for models of isopsin mass differences and model-dependent estimates of f(D).

引用

页码：2046 / 2049

页数：4

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