Measurement of CP–Violating Asymmetries in $$D^0 \to \pi^+ \pi^-$$ and $$D^0 \to K^+ K^- $$ Decays at CDF
Abstract
We report a search for non–Standard Model physics through the measurement of CP–violating asymmetries in the singly–Cabibbo– suppressed $$D^0 \to \pi^+ \pi^-$$ and $$D^0 \to K^+ K^- $$ decays reconstructed in about 5.9 fb-1 of CDF data. We use the strong $$D^{*+} \to D^0\pi^+$$ decay (“D tag”) to identify the flavor of the charmed meson at production time and exploit CP–conserving strong cc pair–production in pp collisions. Large samples of Cabibbo–favored $$D^0 \to K^-\pi^+$$ decays with and without D tag are used to highly suppress systematic uncertainties due to detector effects. The results are the world’s most precise measurements to date and have been published by Physical Review D in January 2012 [1].
- Authors:
-
- Univ. of Pisa (Italy)
- Publication Date:
- Research Org.:
- Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), High Energy Physics (HEP)
- OSTI Identifier:
- 1248346
- Report Number(s):
- FERMILAB-THESIS-2011-29
944861
- DOE Contract Number:
- AC02-07CH11359
- Resource Type:
- Thesis/Dissertation
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
Citation Formats
Di Canto, Angelo. Measurement of CP–Violating Asymmetries in $D^0 \to \pi^+ \pi^-$ and $D^0 \to K^+ K^- $ Decays at CDF. United States: N. p., 2012.
Web. doi:10.2172/1248346.
Di Canto, Angelo. Measurement of CP–Violating Asymmetries in $D^0 \to \pi^+ \pi^-$ and $D^0 \to K^+ K^- $ Decays at CDF. United States. https://doi.org/10.2172/1248346
Di Canto, Angelo. 2012.
"Measurement of CP–Violating Asymmetries in $D^0 \to \pi^+ \pi^-$ and $D^0 \to K^+ K^- $ Decays at CDF". United States. https://doi.org/10.2172/1248346. https://www.osti.gov/servlets/purl/1248346.
@article{osti_1248346,
title = {Measurement of CP–Violating Asymmetries in $D^0 \to \pi^+ \pi^-$ and $D^0 \to K^+ K^- $ Decays at CDF},
author = {Di Canto, Angelo},
abstractNote = {We report a search for non–Standard Model physics through the measurement of CP–violating asymmetries in the singly–Cabibbo– suppressed $D^0 \to \pi^+ \pi^-$ and $D^0 \to K^+ K^- $ decays reconstructed in about 5.9 fb-1 of CDF data. We use the strong $D^{*+} \to D^0\pi^+$ decay (“D tag”) to identify the flavor of the charmed meson at production time and exploit CP–conserving strong cc pair–production in pp collisions. Large samples of Cabibbo–favored $D^0 \to K^-\pi^+$ decays with and without D tag are used to highly suppress systematic uncertainties due to detector effects. The results are the world’s most precise measurements to date and have been published by Physical Review D in January 2012 [1].},
doi = {10.2172/1248346},
url = {https://www.osti.gov/biblio/1248346},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Thu Apr 12 00:00:00 EDT 2012},
month = {Thu Apr 12 00:00:00 EDT 2012}
}
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