Search for CP violation in the phase space of D0→KS0K±π∓ decays with the energy test
(2024) In Journal of High Energy Physics 2024(3).- Abstract
- A search for CP violation in D0→KS0K+π− and D0→KS0K−π+ decays is reported. The search is performed using an unbinned model-independent method known as the energy test that probes local CP violation in the phase space of the decays. The data analysed correspond to an integrated luminosity of 5.4 fb−1 collected in proton-proton collisions by the LHCb experiment at a centre-of-mass energy of s = 13 TeV, amounting to approximately 950 thousand and 620 thousand signal candidates for the D0→KS0K−π+ and D0→KS0K+π− modes, respectively. The method is validated using D0 → K−π+π−π+ and D0→KS0π+π− decays, where CP-violating effects are expected to be negligible, and using background-enhanced regions of the signal decays. The results are consistent... (More)
- A search for CP violation in D0→KS0K+π− and D0→KS0K−π+ decays is reported. The search is performed using an unbinned model-independent method known as the energy test that probes local CP violation in the phase space of the decays. The data analysed correspond to an integrated luminosity of 5.4 fb−1 collected in proton-proton collisions by the LHCb experiment at a centre-of-mass energy of s = 13 TeV, amounting to approximately 950 thousand and 620 thousand signal candidates for the D0→KS0K−π+ and D0→KS0K+π− modes, respectively. The method is validated using D0 → K−π+π−π+ and D0→KS0π+π− decays, where CP-violating effects are expected to be negligible, and using background-enhanced regions of the signal decays. The results are consistent with CP symmetry in both the D0→KS0K−π+ and the D0→KS0K+π− decays, with p-values for the hypothesis of no CP violation of 70% and 66%, respectively. © The Author(s) 2024. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/0db2748d-39d6-42da-b2ba-2e400388ed9b
- author
- Aaij, R. ; Ruiz-Vidal, Joan LU and Zunica, G.
- author collaboration
- organization
- publishing date
- 2024
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- Charm Physics, CP Violation, Hadron-Hadron Scattering
- in
- Journal of High Energy Physics
- volume
- 2024
- issue
- 3
- article number
- 107
- publisher
- Springer
- external identifiers
-
- scopus:85193914685
- ISSN
- 1126-6708
- DOI
- 10.1007/JHEP03(2024)107
- language
- English
- LU publication?
- yes
- id
- 0db2748d-39d6-42da-b2ba-2e400388ed9b
- date added to LUP
- 2024-08-22 15:13:48
- date last changed
- 2024-08-22 15:14:24
@article{0db2748d-39d6-42da-b2ba-2e400388ed9b,
abstract = {{A search for CP violation in D0→KS0K+π− and D0→KS0K−π+ decays is reported. The search is performed using an unbinned model-independent method known as the energy test that probes local CP violation in the phase space of the decays. The data analysed correspond to an integrated luminosity of 5.4 fb−1 collected in proton-proton collisions by the LHCb experiment at a centre-of-mass energy of s = 13 TeV, amounting to approximately 950 thousand and 620 thousand signal candidates for the D0→KS0K−π+ and D0→KS0K+π− modes, respectively. The method is validated using D0 → K−π+π−π+ and D0→KS0π+π− decays, where CP-violating effects are expected to be negligible, and using background-enhanced regions of the signal decays. The results are consistent with CP symmetry in both the D0→KS0K−π+ and the D0→KS0K+π− decays, with p-values for the hypothesis of no CP violation of 70% and 66%, respectively. © The Author(s) 2024.}},
author = {{Aaij, R. and Ruiz-Vidal, Joan and Zunica, G.}},
issn = {{1126-6708}},
keywords = {{Charm Physics; CP Violation; Hadron-Hadron Scattering}},
language = {{eng}},
number = {{3}},
publisher = {{Springer}},
series = {{Journal of High Energy Physics}},
title = {{Search for CP violation in the phase space of D0→KS0K±π∓ decays with the energy test}},
url = {{http://dx.doi.org/10.1007/JHEP03(2024)107}},
doi = {{10.1007/JHEP03(2024)107}},
volume = {{2024}},
year = {{2024}},
}