Measurement of polarization amplitudes and CP asymmetries in $B^0 \to φK^*(892)^0$

An angular analysis of the decay $B^0 \to \phi K^*(892)^0$ is reported based on a $pp$ collision data sample, corresponding to an integrated luminosity of 1.0 fb$^{-1}$, collected at a centre-of-mass energy of $\sqrt{s} = 7$ TeV with the LHCb detector. The P-wave amplitudes and phases are measured w...

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Main Authors: collaboration, L, Aaij, R, Abba, A, Adeva, B, Adinolfi, M, Affolder, A, Ajaltouni, Z, Albrecht, J, Alessio, F, Alexander, M, Ali, S, Alkhazov, G, Cartelle, P, Jr, A, Amato, S, Amerio, S, Amhis, Y, An, L, Anderlini, L, Anderson, J, Andreassen, R, Andreotti, M, Andrews, J, Appleby, R, Gutierrez, O
Format: Journal article
Published: 2014
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author collaboration, L
Aaij, R
Abba, A
Adeva, B
Adinolfi, M
Affolder, A
Ajaltouni, Z
Albrecht, J
Alessio, F
Alexander, M
Ali, S
Alkhazov, G
Cartelle, P
Jr, A
Amato, S
Amerio, S
Amhis, Y
An, L
Anderlini, L
Anderson, J
Andreassen, R
Andreotti, M
Andrews, J
Appleby, R
Gutierrez, O
author_facet collaboration, L
Aaij, R
Abba, A
Adeva, B
Adinolfi, M
Affolder, A
Ajaltouni, Z
Albrecht, J
Alessio, F
Alexander, M
Ali, S
Alkhazov, G
Cartelle, P
Jr, A
Amato, S
Amerio, S
Amhis, Y
An, L
Anderlini, L
Anderson, J
Andreassen, R
Andreotti, M
Andrews, J
Appleby, R
Gutierrez, O
author_sort collaboration, L
collection OXFORD
description An angular analysis of the decay $B^0 \to \phi K^*(892)^0$ is reported based on a $pp$ collision data sample, corresponding to an integrated luminosity of 1.0 fb$^{-1}$, collected at a centre-of-mass energy of $\sqrt{s} = 7$ TeV with the LHCb detector. The P-wave amplitudes and phases are measured with a greater precision than by previous experiments, and confirm about equal amounts of longitudinal and transverse polarization. The S-wave $K^+ \pi^-$ and $K^+K^-$ contributions are taken into account and found to be significant. A comparison of the $B^0 \to \phi K^*(892)^0$ and $\bar{B}^0 \to \phi \bar{K}^*(892)^0$ results shows no evidence for direct CP violation in the rate asymmetry, in the triple-product asymmetries or in the polarization amplitudes and phases.
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spelling oxford-uuid:0b3e46a0-14a7-491e-afd2-b691315d9f272022-03-26T09:28:24ZMeasurement of polarization amplitudes and CP asymmetries in $B^0 \to φK^*(892)^0$Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:0b3e46a0-14a7-491e-afd2-b691315d9f27Symplectic Elements at Oxford2014collaboration, LAaij, RAbba, AAdeva, BAdinolfi, MAffolder, AAjaltouni, ZAlbrecht, JAlessio, FAlexander, MAli, SAlkhazov, GCartelle, PJr, AAmato, SAmerio, SAmhis, YAn, LAnderlini, LAnderson, JAndreassen, RAndreotti, MAndrews, JAppleby, RGutierrez, OAn angular analysis of the decay $B^0 \to \phi K^*(892)^0$ is reported based on a $pp$ collision data sample, corresponding to an integrated luminosity of 1.0 fb$^{-1}$, collected at a centre-of-mass energy of $\sqrt{s} = 7$ TeV with the LHCb detector. The P-wave amplitudes and phases are measured with a greater precision than by previous experiments, and confirm about equal amounts of longitudinal and transverse polarization. The S-wave $K^+ \pi^-$ and $K^+K^-$ contributions are taken into account and found to be significant. A comparison of the $B^0 \to \phi K^*(892)^0$ and $\bar{B}^0 \to \phi \bar{K}^*(892)^0$ results shows no evidence for direct CP violation in the rate asymmetry, in the triple-product asymmetries or in the polarization amplitudes and phases.
spellingShingle collaboration, L
Aaij, R
Abba, A
Adeva, B
Adinolfi, M
Affolder, A
Ajaltouni, Z
Albrecht, J
Alessio, F
Alexander, M
Ali, S
Alkhazov, G
Cartelle, P
Jr, A
Amato, S
Amerio, S
Amhis, Y
An, L
Anderlini, L
Anderson, J
Andreassen, R
Andreotti, M
Andrews, J
Appleby, R
Gutierrez, O
Measurement of polarization amplitudes and CP asymmetries in $B^0 \to φK^*(892)^0$
title Measurement of polarization amplitudes and CP asymmetries in $B^0 \to φK^*(892)^0$
title_full Measurement of polarization amplitudes and CP asymmetries in $B^0 \to φK^*(892)^0$
title_fullStr Measurement of polarization amplitudes and CP asymmetries in $B^0 \to φK^*(892)^0$
title_full_unstemmed Measurement of polarization amplitudes and CP asymmetries in $B^0 \to φK^*(892)^0$
title_short Measurement of polarization amplitudes and CP asymmetries in $B^0 \to φK^*(892)^0$
title_sort measurement of polarization amplitudes and cp asymmetries in b 0 to φk 892 0
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