SEARCH FOR HIDDEN CHARM STATES DECAYING INTO J-PSI OR PSI' PLUS PIONS

被引：42

作者：

ANTONIAZZI, L

ARENTON, M

CAO, Z

CHEN, T

CONETTI, S

CORTI, G

COX, B

DELCHAMPS, S

FORTNEY, L

GUFFEY, K

HAIRE, M

IOANNOU, P

JENKINS, CM

JUDD, DJ

KOURKOUMELIS, C

MANOUSAKISKATSIKAKIS, A

KUZMINSKI, J

LECOMPTE, T

MARCHIONNI, A

HE, M

MAZUR, PO

MURPHY, CT

PRAMANTIOTIS, P

RAMEIKA, R

RESVANIS, LK

ROSATI, M

ROSEN, J

SHEN, C

SHEN, Q

SIMARD, A

SMITH, RP

SPIEGEL, L

STAIRS, DG

TAN, Y

TESAREK, RJ

TURKINGTON, T

TURNBULL, L

TURKOT, F

TZAMARIAS, S

VOULGARIS, G

WAGONER, DE

WANG, C

YANG, W

YAO, N

ZHANG, N

ZHANG, X

ZIOULAS, G

ZOU, B

机构：

[1] DUKE UNIV,DURHAM,NC 27706

[2] FERMILAB NATL ACCELERATOR LAB,BATAVIA,IL 60510

[3] MCGILL UNIV,MONTREAL H3A 2T8,QUEBEC,CANADA

[4] NANJING UNIV,NANJING,PEOPLES R CHINA

[5] PRAIRIE VIEW A&M UNIV,PRAIRIE VIEW,TX 77445

[6] NORTHWESTERN UNIV,EVANSTON,IL 60208

[7] SHANDONG UNIV,JINAN,PEOPLES R CHINA

[8] UNIV VIRGINIA,CHARLOTTESVILLE,VA 22901

来源：

PHYSICAL REVIEW D | 1994年 / 50卷 / 07期

关键词：

D O I：

10.1103/PhysRevD.50.4258

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

A search has been made in 300 GeV/c pi+/-- and proton-Li interactions for production of states that decay into J/psi or psi' plus one or two pions. A 2.5sigma enhancement in the J/psi pi0 spectrum, possibly the recently reported 1P1 state of charmonium, is observed at a mass of 3.527 GeV/c2. In the J/psi plus two pion mass spectrum, we report, together with the expected psi' --> J/psi pi+pi-, the tentative observation of a structure at a mass of 3.836 GeV/c2. No enhancements are seen in the J/psi pi+/-pi+/-, J/psi pi+/-pi0, J/psi pi+/-, or psi' pi+/- mass spectra.

引用

页码：4258 / 4264

页数：7

共 16 条

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