Inclusive decays B->DX and B->D*X
We report new measurements of the differential and total branching ratios for inclusive B decay to D0, D+, and D*+ and the first measurement of the same quantities for inclusive B decay to D*0. Here B is the mixture of Bd and Ba from Y(4S) decay. Furthermore, since more than one charm particle (or a...
| Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , , |
|---|---|
| פורמט: | Journal article |
| שפה: | English |
| יצא לאור: |
1997
|
| _version_ | 1826298999967055872 |
|---|---|
| author | Gibbons, L Johnson, S Kwon, Y Roberts, S Thorndike, E Jessop, C Lingel, K Marsiske, H Perl, M Schaffner, S Ugolini, D Wang, R Zhou, X Coan, T Fadeyev, V Korolkov, I Maravin, Y Narsky, I Shelkov, V Staeck, J Stroynowski, R Volobouev, I Ye, J Artuso, M Efimov, A |
| author_facet | Gibbons, L Johnson, S Kwon, Y Roberts, S Thorndike, E Jessop, C Lingel, K Marsiske, H Perl, M Schaffner, S Ugolini, D Wang, R Zhou, X Coan, T Fadeyev, V Korolkov, I Maravin, Y Narsky, I Shelkov, V Staeck, J Stroynowski, R Volobouev, I Ye, J Artuso, M Efimov, A |
| author_sort | Gibbons, L |
| collection | OXFORD |
| description | We report new measurements of the differential and total branching ratios for inclusive B decay to D0, D+, and D*+ and the first measurement of the same quantities for inclusive B decay to D*0. Here B is the mixture of Bd and Ba from Y(4S) decay. Furthermore, since more than one charm particle (or antiparticle) of the same kind can be produced in B decay, here "inclusive B branching ratio" is used to mean the average number of charm particles and their antiparticles of a certain species produced in B decay. We obtain the following results (the first error is statistical, the second systematic of this analysis, the third propagated from other measurements): B(B→D0X) = (0.636±0.014±0.019±0.018), B(B→D+X) = (0.235±0.009±0.009 ±0.024), B(B→D*0X) = (0.247±0.012±0.018±0.018), B(B→D*+X) = (0.239±0.011±0.014±0.009). The following ratio of branching ratios is not affected by most of the systematic errors: B(B→D*0X)/B(B→D*+X) = (1.03±0.07±0.09±0.08). We also report the first measurement of the momentum-dependent D*0 polarization and a new measurement of the D*+ polarization in inclusive B decay. Using these measurements and other CLEO results and making some additional assumptions, we calculate the average number of c and c̄ quarks produced in B decay to be 〈nc〉= 1.10±0.05. |
| first_indexed | 2024-03-07T04:55:14Z |
| format | Journal article |
| id | oxford-uuid:d6602f73-02c3-4521-a362-89d6f5cd0cde |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T04:55:14Z |
| publishDate | 1997 |
| record_format | dspace |
| spelling | oxford-uuid:d6602f73-02c3-4521-a362-89d6f5cd0cde2022-03-27T08:33:02ZInclusive decays B->DX and B->D*XJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:d6602f73-02c3-4521-a362-89d6f5cd0cdeEnglishSymplectic Elements at Oxford1997Gibbons, LJohnson, SKwon, YRoberts, SThorndike, EJessop, CLingel, KMarsiske, HPerl, MSchaffner, SUgolini, DWang, RZhou, XCoan, TFadeyev, VKorolkov, IMaravin, YNarsky, IShelkov, VStaeck, JStroynowski, RVolobouev, IYe, JArtuso, MEfimov, AWe report new measurements of the differential and total branching ratios for inclusive B decay to D0, D+, and D*+ and the first measurement of the same quantities for inclusive B decay to D*0. Here B is the mixture of Bd and Ba from Y(4S) decay. Furthermore, since more than one charm particle (or antiparticle) of the same kind can be produced in B decay, here "inclusive B branching ratio" is used to mean the average number of charm particles and their antiparticles of a certain species produced in B decay. We obtain the following results (the first error is statistical, the second systematic of this analysis, the third propagated from other measurements): B(B→D0X) = (0.636±0.014±0.019±0.018), B(B→D+X) = (0.235±0.009±0.009 ±0.024), B(B→D*0X) = (0.247±0.012±0.018±0.018), B(B→D*+X) = (0.239±0.011±0.014±0.009). The following ratio of branching ratios is not affected by most of the systematic errors: B(B→D*0X)/B(B→D*+X) = (1.03±0.07±0.09±0.08). We also report the first measurement of the momentum-dependent D*0 polarization and a new measurement of the D*+ polarization in inclusive B decay. Using these measurements and other CLEO results and making some additional assumptions, we calculate the average number of c and c̄ quarks produced in B decay to be 〈nc〉= 1.10±0.05. |
| spellingShingle | Gibbons, L Johnson, S Kwon, Y Roberts, S Thorndike, E Jessop, C Lingel, K Marsiske, H Perl, M Schaffner, S Ugolini, D Wang, R Zhou, X Coan, T Fadeyev, V Korolkov, I Maravin, Y Narsky, I Shelkov, V Staeck, J Stroynowski, R Volobouev, I Ye, J Artuso, M Efimov, A Inclusive decays B->DX and B->D*X |
| title | Inclusive decays B->DX and B->D*X |
| title_full | Inclusive decays B->DX and B->D*X |
| title_fullStr | Inclusive decays B->DX and B->D*X |
| title_full_unstemmed | Inclusive decays B->DX and B->D*X |
| title_short | Inclusive decays B->DX and B->D*X |
| title_sort | inclusive decays b gt dx and b gt d x |
| work_keys_str_mv | AT gibbonsl inclusivedecaysbgtdxandbgtdx AT johnsons inclusivedecaysbgtdxandbgtdx AT kwony inclusivedecaysbgtdxandbgtdx AT robertss inclusivedecaysbgtdxandbgtdx AT thorndikee inclusivedecaysbgtdxandbgtdx AT jessopc inclusivedecaysbgtdxandbgtdx AT lingelk inclusivedecaysbgtdxandbgtdx AT marsiskeh inclusivedecaysbgtdxandbgtdx AT perlm inclusivedecaysbgtdxandbgtdx AT schaffners inclusivedecaysbgtdxandbgtdx AT ugolinid inclusivedecaysbgtdxandbgtdx AT wangr inclusivedecaysbgtdxandbgtdx AT zhoux inclusivedecaysbgtdxandbgtdx AT coant inclusivedecaysbgtdxandbgtdx AT fadeyevv inclusivedecaysbgtdxandbgtdx AT korolkovi inclusivedecaysbgtdxandbgtdx AT maraviny inclusivedecaysbgtdxandbgtdx AT narskyi inclusivedecaysbgtdxandbgtdx AT shelkovv inclusivedecaysbgtdxandbgtdx AT staeckj inclusivedecaysbgtdxandbgtdx AT stroynowskir inclusivedecaysbgtdxandbgtdx AT volobouevi inclusivedecaysbgtdxandbgtdx AT yej inclusivedecaysbgtdxandbgtdx AT artusom inclusivedecaysbgtdxandbgtdx AT efimova inclusivedecaysbgtdxandbgtdx |