Amplitude Analysis of the B+ to phi K*+(892) Decay
Abstract
We perform an amplitude analysis of B{sup {+}} {yields} {var_phi}(1020)K*(892){sup {+}} decay with a sample of about 384 million B{bar B} pairs recorded with the BABAR detector. Overall, twelve parameters are measured, including the fractions of longitudinal f{sub L} and parityodd transverse f{sub {perpendicular}} amplitudes, branching fraction, strong phases, and six parameters sensitive to CPviolation. We use the dependence on the K{pi} invariant mass of the interference between the J{sup P} = 1{sup } and 0{sup +} K{pi} components to resolve the discrete ambiguity in the determination of the strong and weak phases. Our measurements of f{sub L} = 0.49 {+} 0.05 {+} 0.03, f{sub {perpendicular}} = 0.21 {+} 0.05 {+} 0.02, and the strong phases point to the presence of a substantial helicityplus amplitude from a presently unknown source.
 Authors:
 Publication Date:
 Research Org.:
 Stanford Linear Accelerator Center (SLAC)
 Sponsoring Org.:
 USDOE
 OSTI Identifier:
 907716
 Report Number(s):
 SLACPUB12462
Journal ID: ISSN 00319007; PRLTAO; arXiv:0705.1798; TRN: US0703349
 DOE Contract Number:
 AC0276SF00515
 Resource Type:
 Journal Article
 Resource Relation:
 Journal Name: Physical Review Letters
 Country of Publication:
 United States
 Language:
 English
 Subject:
 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; AMPLITUDES; PARTICLE DECAY; B PLUS MESONS; B MINUS MESONS; PHI1020 MESONS; K*892 MESONS; BRANCHING RATIO; CP INVARIANCE; ExperimentHEP,HEPEX
Citation Formats
Aubert, B. Amplitude Analysis of the B+ to phi K*+(892) Decay. United States: N. p., 2007.
Web.
Aubert, B. Amplitude Analysis of the B+ to phi K*+(892) Decay. United States.
Aubert, B. Wed .
"Amplitude Analysis of the B+ to phi K*+(892) Decay". United States.
doi:. https://www.osti.gov/servlets/purl/907716.
@article{osti_907716,
title = {Amplitude Analysis of the B+ to phi K*+(892) Decay},
author = {Aubert, B.},
abstractNote = {We perform an amplitude analysis of B{sup {+}} {yields} {var_phi}(1020)K*(892){sup {+}} decay with a sample of about 384 million B{bar B} pairs recorded with the BABAR detector. Overall, twelve parameters are measured, including the fractions of longitudinal f{sub L} and parityodd transverse f{sub {perpendicular}} amplitudes, branching fraction, strong phases, and six parameters sensitive to CPviolation. We use the dependence on the K{pi} invariant mass of the interference between the J{sup P} = 1{sup } and 0{sup +} K{pi} components to resolve the discrete ambiguity in the determination of the strong and weak phases. Our measurements of f{sub L} = 0.49 {+} 0.05 {+} 0.03, f{sub {perpendicular}} = 0.21 {+} 0.05 {+} 0.02, and the strong phases point to the presence of a substantial helicityplus amplitude from a presently unknown source.},
doi = {},
journal = {Physical Review Letters},
number = ,
volume = ,
place = {United States},
year = {Wed May 16 00:00:00 EDT 2007},
month = {Wed May 16 00:00:00 EDT 2007}
}

We perform an amplitude analysis of B{sup {+}}{yields}{phi}(1020)K*(892){sup {+}} decay with a sample of about 384x10{sup 6} BB pairs recorded with the BABAR detector. Overall, twelve parameters are measured, including the fractions of longitudinal f{sub L} and parityodd transverse f{sub perpendicular} amplitudes, branching fraction, strong phases, and six parameters sensitive to CP violation. We use the dependence on the K{pi} invariant mass of the interference between the J{sup P}=1{sup } and 0{sup +} K{pi} components to resolve the discrete ambiguity in the determination of the strong and weak phases. Our measurements of f{sub L}=0.49{+}0.05{+}0.03, f{sub perpendicular}=0.21{+}0.05{+}0.02, and the strong phasesmore »

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