Journal article
Measurement of $CP$ violation and constraints on the CKM angle $γ$ in $B^{\pm}\rightarrow D K^{\pm}$ with $D \rightarrow K_S^0 π^+ π^-$ decays
- Abstract:
- A model-dependent amplitude analysis of B±→DK± with D→KS0π+π- decays is performed using proton-proton collision data, corresponding to an integrated luminosity of 1fb-1, recorded by LHCb at a centre-of-mass energy of 7 TeV in 2011. Values of the CP violation observables x± and y±, which are sensitive to the CKM angle γ, are measured to bex-=+0.027±0.044-0.008+0.010±0.001,y-=+0.013±0.048-0.007+0.009±0.003,x+=-0.084±0.045±0.009±0.005,y+=-0.032±0.048-0.009+0.010±0.008, where the first uncertainty is statistical, the second systematic and the third arises from the uncertainty of the D→KS0π+π- amplitude model. The value of γ is determined to be (84-42+49)°, including all sources of uncertainty. Neutral D meson mixing is found to have negligible effect.
- Publication status:
- Published
- Peer review status:
- Peer reviewed
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(Preview, Version of record, pdf, 1.4MB, Terms of use)
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- Publisher copy:
- 10.1016/j.nuclphysb.2014.09.015
Authors
- Publisher:
- Elsevier
- Journal:
- Nuclear Physics B More from this journal
- Volume:
- 888
- Pages:
- 169-193
- Publication date:
- 2014-09-28
- Acceptance date:
- 2014-09-19
- DOI:
- ISSN:
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0550-3213
- Keywords:
- Pubs id:
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pubs:535782
- UUID:
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uuid:a48f34ff-6b06-4ab1-a615-b80296739b23
- Local pid:
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pubs:535782
- Deposit date:
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2016-11-03
Terms of use
- Copyright holder:
- R Aaij et al
- Copyright date:
- 2014
- Notes:
- This is an Open Access article funded by SCOAP³ - Sponsoring Consortium for Open Access Publishing in Particle Physics under a Creative Commons license (http://creativecommons.org/licenses/by/3.0/)
- Licence:
- CC Attribution (CC BY)
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