Observation of Exclusive {ital B} Decays to Final States Containing a Charmed Baryon
Journal Article
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· Physical Review Letters
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- 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)
- Stanford Linear Accelerator Center, Stanford University, Stanford, California 94309 (United States)
- Southern Methodist University, Dallas, Texas 75275 (United States)
- Syracuse University, Syracuse, New York 13244 (United States)
- Vanderbilt University, Nashville, Tennessee 37235 (United States)
- Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061 (United States)
- Wayne State University, Detroit, Michigan 48202 (United States)
- California Institute of Technology, Pasadena, California 91125 (United States)
- University of California, San Diego, La Jolla, California 92093 (United States)
Using data collected in the region of the {Upsilon}(4S) resonance with the CLEO-II detector, we report on the first observation of exclusive decays of the B meson to final states with a charmed baryon. We have measured the branching fractions B(B{sup {minus}}{r_arrow}{Lambda}{sup +}{sub c}{ovr p}{pi}{sup {minus}})=( 0.62{sup +0.23}{sub {minus}0.20}{plus_minus}0.11{plus_minus}0.10) {times}10{sup {minus}3} and B({ovr B}{sup 0}{r_arrow}{Lambda}{sup +}{sub c}{ovr p}{pi}{sup +}{pi}{sup {minus}})=(1.33{sup +0.46}{sub {minus}0.42}{plus_minus}0.31{plus_minus}0.21){times}10{sup {minus}3} , where the first error is statistical, the second is systematic, and the third is due to uncertainty in the {Lambda}{sup +}{sub c} branching fractions. In addition, we report upper limits for final states of the form {ovr B}{r_arrow}{Lambda}{sup +}{sub c}{ovr p} (n{pi}) and {Lambda}{sup +}{sub c}{ovr p}(n{pi}) {pi}{sup 0} , where (n{pi}) denotes up to four charged pions. {copyright} {ital 1997} {ital The American Physical Society}
- OSTI ID:
- 628711
- Journal Information:
- Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 17 Vol. 79; ISSN 0031-9007; ISSN PRLTAO
- Country of Publication:
- United States
- Language:
- English
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