Angular distributions in the decay B -> K*l(+)l(-)
We use a sample of 384×106 BB̄ events collected with the BABAR detector at the PEP-II e+e- collider to study angular distributions in the rare decays B→K* + -, where + - is either e+e- or μ+μ-. For low dilepton invariant masses, m <2.5GeV/c2, we measure a lepton forward-backward asymmetry AFB...
| Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , , |
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| Format: | Journal article |
| Language: | English |
| Published: |
2009
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| _version_ | 1797091973062983680 |
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| author | Aubert, B Bona, M Karyotakis, Y Lees, J Poireau, V Prudent, X Tisserand, V Zghiche, A Garra Tico, J Grauges, E Lopez, L Palano, A Pappagallo, M Eigen, G Stugu, B Sun, L Abrams, G Battaglia, M Brown, D Button-Shafer, J Cahn, R Jacobsen, R Kadyk, J Kerth, LT Kolomensky, Y |
| author_facet | Aubert, B Bona, M Karyotakis, Y Lees, J Poireau, V Prudent, X Tisserand, V Zghiche, A Garra Tico, J Grauges, E Lopez, L Palano, A Pappagallo, M Eigen, G Stugu, B Sun, L Abrams, G Battaglia, M Brown, D Button-Shafer, J Cahn, R Jacobsen, R Kadyk, J Kerth, LT Kolomensky, Y |
| author_sort | Aubert, B |
| collection | OXFORD |
| description | We use a sample of 384×106 BB̄ events collected with the BABAR detector at the PEP-II e+e- collider to study angular distributions in the rare decays B→K* + -, where + - is either e+e- or μ+μ-. For low dilepton invariant masses, m <2.5GeV/c2, we measure a lepton forward-backward asymmetry AFB=0.24-0.23+0.18±0.05 and K* longitudinal polarization FL=0.35±0.16±0.04. For m >3.2GeV/c2, we measure AFB=0.76-0.32+0.52±0.07 and FL=0.71-0.22+0.20±0.04. © 2009 The American Physical Society. |
| first_indexed | 2024-03-07T03:40:00Z |
| format | Journal article |
| id | oxford-uuid:bd8ff062-9cd6-4d08-bc12-73fd13aa48b9 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T03:40:00Z |
| publishDate | 2009 |
| record_format | dspace |
| spelling | oxford-uuid:bd8ff062-9cd6-4d08-bc12-73fd13aa48b92022-03-27T05:32:44ZAngular distributions in the decay B -> K*l(+)l(-)Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:bd8ff062-9cd6-4d08-bc12-73fd13aa48b9EnglishSymplectic Elements at Oxford2009Aubert, BBona, MKaryotakis, YLees, JPoireau, VPrudent, XTisserand, VZghiche, AGarra Tico, JGrauges, ELopez, LPalano, APappagallo, MEigen, GStugu, BSun, LAbrams, GBattaglia, MBrown, DButton-Shafer, JCahn, RJacobsen, RKadyk, JKerth, LTKolomensky, YWe use a sample of 384×106 BB̄ events collected with the BABAR detector at the PEP-II e+e- collider to study angular distributions in the rare decays B→K* + -, where + - is either e+e- or μ+μ-. For low dilepton invariant masses, m <2.5GeV/c2, we measure a lepton forward-backward asymmetry AFB=0.24-0.23+0.18±0.05 and K* longitudinal polarization FL=0.35±0.16±0.04. For m >3.2GeV/c2, we measure AFB=0.76-0.32+0.52±0.07 and FL=0.71-0.22+0.20±0.04. © 2009 The American Physical Society. |
| spellingShingle | Aubert, B Bona, M Karyotakis, Y Lees, J Poireau, V Prudent, X Tisserand, V Zghiche, A Garra Tico, J Grauges, E Lopez, L Palano, A Pappagallo, M Eigen, G Stugu, B Sun, L Abrams, G Battaglia, M Brown, D Button-Shafer, J Cahn, R Jacobsen, R Kadyk, J Kerth, LT Kolomensky, Y Angular distributions in the decay B -> K*l(+)l(-) |
| title | Angular distributions in the decay B -> K*l(+)l(-) |
| title_full | Angular distributions in the decay B -> K*l(+)l(-) |
| title_fullStr | Angular distributions in the decay B -> K*l(+)l(-) |
| title_full_unstemmed | Angular distributions in the decay B -> K*l(+)l(-) |
| title_short | Angular distributions in the decay B -> K*l(+)l(-) |
| title_sort | angular distributions in the decay b gt k l l |
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