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Observation of High Momentum {ital {eta}}{sup {prime}} Production in {ital B} Decays

Journal Article · · Physical Review Letters
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  1. University of Hawaii at Manoa, Honolulu, Hawaii 96822 (United States)
  2. University of Illinois, Urbana-Champaign, Illinois 61801 (United States)
  3. the Institute of Particle Physics, Montreal, Quebec (Canada)
  4. Ithaca College, Ithaca, New York 14850 (United States)
  5. University of Kansas, Lawrence, Kansas 66045 (United States)
  6. University of Minnesota, Minneapolis, Minnesota 55455 (United States)
  7. State University of New York at Albany, Albany, New York 12222 (United States)
  8. The Ohio State University, Columbus, Ohio 43210 (United States)
  9. University of Oklahoma, Norman, Oklahoma 73019 (United States)
  10. Purdue University, West Lafayette, Indiana 47907 (United States)
  11. 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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