Measurement of the B+-> p(p)over-barK(+) branching fraction and study of the decay dynamics
With a sample of 232×106 Υ(4S)→BB̄ events collected with the BABAR detector, we study the decay B+→pp̄K+ excluding charmonium decays to pp̄. We measure a branching fraction B(B+→pp̄K+)=(6.7±0.5±0.4)×10-6. An enhancement at low pp̄ mass is observed and the Dalitz plot asymmetry suggests dominance of...
| Hlavní autoři: | , , , , , , , , , , , , , , , , , , , , , , , , |
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| Médium: | Journal article |
| Jazyk: | English |
| Vydáno: |
2005
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| _version_ | 1826277554983534592 |
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| author | Aubert, B Barate, R Boutigny, D Couderc, F Karyotakis, Y Lees, J Poireau, V Tisserand, V Zghiche, A Grauges, E Palano, A Pappagallo, M Pompili, A Chen, J Qi, N Rong, G Wang, P Zhu, Y Eigen, G Ofte, I Stugu, B Abrams, G Battaglia, M Breon, AB Brown, D |
| author_facet | Aubert, B Barate, R Boutigny, D Couderc, F Karyotakis, Y Lees, J Poireau, V Tisserand, V Zghiche, A Grauges, E Palano, A Pappagallo, M Pompili, A Chen, J Qi, N Rong, G Wang, P Zhu, Y Eigen, G Ofte, I Stugu, B Abrams, G Battaglia, M Breon, AB Brown, D |
| author_sort | Aubert, B |
| collection | OXFORD |
| description | With a sample of 232×106 Υ(4S)→BB̄ events collected with the BABAR detector, we study the decay B+→pp̄K+ excluding charmonium decays to pp̄. We measure a branching fraction B(B+→pp̄K+)=(6.7±0.5±0.4)×10-6. An enhancement at low pp̄ mass is observed and the Dalitz plot asymmetry suggests dominance of the penguin amplitude in this B decay. We search for a pentaquark candidate Θ*++ decaying into pK+ in the mass range 1.43 to 2.00GeV/c2 and set limits on B(B+→Θ*++p̄)×B(Θ*++→pK+) at the 10-7 level. © 2005 The American Physical Society. |
| first_indexed | 2024-03-06T23:30:40Z |
| format | Journal article |
| id | oxford-uuid:6be9823a-72d2-4bd1-b7a2-a3f33465a441 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-06T23:30:40Z |
| publishDate | 2005 |
| record_format | dspace |
| spelling | oxford-uuid:6be9823a-72d2-4bd1-b7a2-a3f33465a4412022-03-26T19:07:27ZMeasurement of the B+-> p(p)over-barK(+) branching fraction and study of the decay dynamicsJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:6be9823a-72d2-4bd1-b7a2-a3f33465a441EnglishSymplectic Elements at Oxford2005Aubert, BBarate, RBoutigny, DCouderc, FKaryotakis, YLees, JPoireau, VTisserand, VZghiche, AGrauges, EPalano, APappagallo, MPompili, AChen, JQi, NRong, GWang, PZhu, YEigen, GOfte, IStugu, BAbrams, GBattaglia, MBreon, ABBrown, DWith a sample of 232×106 Υ(4S)→BB̄ events collected with the BABAR detector, we study the decay B+→pp̄K+ excluding charmonium decays to pp̄. We measure a branching fraction B(B+→pp̄K+)=(6.7±0.5±0.4)×10-6. An enhancement at low pp̄ mass is observed and the Dalitz plot asymmetry suggests dominance of the penguin amplitude in this B decay. We search for a pentaquark candidate Θ*++ decaying into pK+ in the mass range 1.43 to 2.00GeV/c2 and set limits on B(B+→Θ*++p̄)×B(Θ*++→pK+) at the 10-7 level. © 2005 The American Physical Society. |
| spellingShingle | Aubert, B Barate, R Boutigny, D Couderc, F Karyotakis, Y Lees, J Poireau, V Tisserand, V Zghiche, A Grauges, E Palano, A Pappagallo, M Pompili, A Chen, J Qi, N Rong, G Wang, P Zhu, Y Eigen, G Ofte, I Stugu, B Abrams, G Battaglia, M Breon, AB Brown, D Measurement of the B+-> p(p)over-barK(+) branching fraction and study of the decay dynamics |
| title | Measurement of the B+-> p(p)over-barK(+) branching fraction and study of the decay dynamics |
| title_full | Measurement of the B+-> p(p)over-barK(+) branching fraction and study of the decay dynamics |
| title_fullStr | Measurement of the B+-> p(p)over-barK(+) branching fraction and study of the decay dynamics |
| title_full_unstemmed | Measurement of the B+-> p(p)over-barK(+) branching fraction and study of the decay dynamics |
| title_short | Measurement of the B+-> p(p)over-barK(+) branching fraction and study of the decay dynamics |
| title_sort | measurement of the b gt p p over bark branching fraction and study of the decay dynamics |
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