Observation of High Momentum {ital {eta}}{sup {prime}} Production in {ital B} Decays
- University of Hawaii at Manoa, Honolulu, Hawaii 96822 (United States)
- University of Illinois, Urbana-Champaign, Illinois 61801 (United States)
- the Institute of Particle Physics, Montreal, Quebec (Canada)
- Ithaca College, Ithaca, New York 14850 (United States)
- University of Kansas, Lawrence, Kansas 66045 (United States)
- University of Minnesota, Minneapolis, Minnesota 55455 (United States)
- State University of New York at Albany, Albany, New York 12222 (United States)
- The Ohio State University, Columbus, Ohio 43210 (United States)
- University of Oklahoma, Norman, Oklahoma 73019 (United States)
- Purdue University, West Lafayette, Indiana 47907 (United States)
- University of Rochester, Rochester, New York 14627 (United States)
We report the first observation of B{r_arrow}{eta}{sup {prime}}X transitions with high momentum {eta}{sup {prime}} mesons. We observe 39.0{plus_minus}11.6 B decay events with 2.0{lt}p{sub {eta}{sup {prime}}}{lt}2.7 GeV/c , the high momentum region where background from b{r_arrow}c processes is suppressed. We discuss the physical interpretation of the signal, including the possibility that it is due to b{r_arrow}sg{sup {asterisk}} transitions. Given that interpretation, we find B(B{r_arrow}{eta}{sup {prime}}X{sub s} )=[6.2{plus_minus}1.6(stat){plus_minus} 1.3(syst){sup +0.0}{sub {minus}1.5} (bkg)]{times}10{sup {minus}4} for 2.0{lt}p{sub {eta}{sup {prime}}}{lt}2.7 GeV/c . {copyright} {ital 1998} {ital The American Physical Society }
- OSTI ID:
- 656330
- Journal Information:
- Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 9 Vol. 81; ISSN 0031-9007; ISSN PRLTAO
- Country of Publication:
- United States
- Language:
- English
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