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Title: 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:
 [1]
  1. 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}
}

Thesis/Dissertation:
Other availability
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