Journal article

Measurement of the CP-violating phase $φ_s$ in $\overline{B}^0_s\rightarrow J/ψπ^+π^-$ decays

Abstract:: The mixing-induced CP-violating phase $\phi_s$ in ${B}^0_s$ and $\overline{B}^0_s$ decays is measured using the $J/\psi \pi^+\pi^-$ final state in data, taken from 3\,fb$^{-1}$ of integrated luminosity, collected with the LHCb detector in 7 and 8 TeV centre-of-mass $pp$ collisions at the LHC. A time-dependent flavour-tagged amplitude analysis, allowing for direct \CP violation, yields a value for the phase $\phi_s=70\pm 68\pm 8$\,mrad. This result is consistent with the Standard Model expectation and previous measurements.

Publication status:: Published

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APA Style

collaboration, L., Aaij, R., Adeva, B., Adinolfi, M., Affolder, A., Ajaltouni, Z., Akar, S., Albrecht, J., Alessio, F., Alexander, M., Ali, S., Alkhazov, G., Cartelle, P., Jr, A., Amato, S., Amerio, S., Amhis, Y., An, L., Anderlini, L., … Gutierrez, O. (2014). Measurement of the CP-violating phase $φ_s$ in $\overline{B}^0_s\rightarrow J/ψπ^+π^-$ decays. Physics Letters B, 736, (2014) 186, 736, 186–195.

MLA Style

collaboration, L., et al. “Measurement of the CP-Violating Phase $φ_s$ In $\Overline{B}^0_s\Rightarrow J/Ψπ^+π^-$ Decays.” Physics Letters B, 736, (2014) 186, vol. 736, 2014, pp. 186–95.

Chicago Style

collaboration, L, R Aaij, B Adeva, M Adinolfi, A Affolder, Z Ajaltouni, S Akar, et al. 2014. “Measurement of the CP-Violating Phase $φ_s$ In $\Overline{B}^0_s\Rightarrow J/Ψπ^+π^-$ Decays.” Physics Letters B, 736, (2014) 186 736: 186–95.
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Publisher copy:: 10.1016/j.physletb.2014.06.079

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+ collaboration, L More by this author

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+ Aaij, R More by this author

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+ Adeva, B More by this author

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+ Adinolfi, M More by this author

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+ Affolder, A More by this author

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Journal:: Physics Letters B, 736, (2014) 186 More from this journal
Volume:: 736
Pages:: 186-195
Publication date:: 2014-05-16
DOI:: 10.1016/j.physletb.2014.06.079
ISSN:: 0370-2693

Keywords:: hep-ex

hep-ph
Pubs id:: pubs:465585
UUID:: uuid:92f5f2ea-c3a4-434d-892d-e3d0ed05b241
Local pid:: pubs:465585
Source identifiers:: 465585
Deposit date:: 2014-09-21

Terms of use

Copyright date:: 2014
Notes:: 14 pages, 5 figures

Licence:: Terms and Conditions of Use for Oxford University Research Archive

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