SEARCH FOR THE H-DIBARYON IN HE-3(K-,K+)HN

Authors
STOTZER RW BURGER T BARNES PD BASSALLECK B BERDOZ AR BURGER M CHRIEN RE DAVIS CA DIEBOLD GE ENYO H FISCHER H FRANKLIN GB FRANZ J GAN L GILL DR IIJIMA T IMAI K KORAN P LANDRY M LEE L LOWE J MAGAHIZ R MASAIKE A MCCRADY R MERRILL F MEYER CA NELSON JM OKADA K PAGE SA PILE PH QUINN BP RAMSAY WD ROSSLE E RUSEK A SAWAFTA R SCHMITT H SCHUMACHER RA STEARNS RL SUKATON IR SUTTER R SZYMANSKI JJ TAKEUTCHI F VANOERS WTH WOLFE DM YAMAMOTO K YOSOI M ZEPS VJ ZYBERT R
Citation
Rw. Stotzer et al., SEARCH FOR THE H-DIBARYON IN HE-3(K-,K+)HN, Physical review letters, 78(19), 1997, pp. 3646-3649
Citations number
21
Categorie Soggetti
Physics
Journal title
Physical review letters → ACNP
ISSN journal
00319007
Volume
78
Issue
19
Year of publication
1997
Pages
3646 - 3649
Database
ISI
SICI code
0031-9007(1997)78:19<3646:SFTHIH>2.0.ZU;2-N
Abstract
A high-sensitivity search for the strangeness S=-2 H dibaryon (uundss) was conducted at the Brookhaven Alternating Gradient Synchrotron (AGS ) using the reaction He-3(K-, K+)Hn at PK-=1.8 GeVc. The sensitivity w as independent of H lifetime and decay modes. No evidence for H produc tion was observed. In a mass range extending from about 50 to 380 MeV/ c(2) below the Lambda Lambda threshold of 2.231 GeV/c(2), the resultin g upper limits on the H-production cross section are in the range of 0 .058 to 0.021 mu b/sr, approximately 1 order of magnitude below a theo retical calculation.