Search for CP violation in D[superscript 0] → π[superscript -] π [superscript +] π [superscript 0] decays with the energy test
A search for time-integrated CP violation in the Cabibbo-suppressed decay D[superscript 0] → π[superscript -] π [superscript +] π [superscript 0] is performed using for the first time an unbinned model-independent technique known as the energy test. Using proton–proton collision data, corresponding...
| Main Authors: | , , |
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| Other Authors: | |
| Format: | Article |
| Language: | en_US |
| Published: |
Elsevier
2015
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| Online Access: | http://hdl.handle.net/1721.1/92579 https://orcid.org/0000-0001-8285-3346 https://orcid.org/0000-0002-4670-1334 https://orcid.org/0000-0001-5534-1732 |
| Summary: | A search for time-integrated CP violation in the Cabibbo-suppressed decay D[superscript 0] → π[superscript -] π [superscript +] π [superscript 0] is performed using for the first time an unbinned model-independent technique known as the energy test. Using proton–proton collision data, corresponding to an integrated luminosity of 2.0 fb[superscript −1] collected by the LHCb detector at a centre-of-mass energy of √s = 8 TeV, the world's best sensitivity to CP violation in this decay is obtained. The data are found to be consistent with the hypothesis of CP symmetry with a p-value of (2.6±0.5)%. |
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