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Title: An Experimental Study of the Decay $$D^0 \to K^- K^- K^+ \pi^+$$

Abstract

Using data from the E791 experiment at Fermi National Accelerator Laboratory (Fermilab), we have studied the Cabibbo favored, but phase space suppressed decay $$D^0 \to K^-K^- K^+ \pi^+$$ with the normalization channel $$D^0 \to K^- \pi^- \pi^+ \pi^+$$. We report the branching ratio of $$D^0 \to K^- K^- K^+ \pi^+$$ relative to the branching ratio of $$D^0 \to K^- \pi^- \pi^+ \pi^+$$. This value is (0.54 $$\pm$$ 0.13 $$\pm$$ 0.07)%. We see a clear signal of $K^-K^+$ resonance in the decay $$D^0 \to K^-K^-K^+\pi^+$$ from which we conclude that about (60 $$\pm$$ 30)% of $$KKK\pi$$ comes from $$D^0 \to \phi K^-\pi^+; \phi \to K^-K^+$$. We also set the range (0.30% - 0.90%) for the ratio $$P_{q\overline{q}} = P_{NoPop}$$ where $$P_{q\bar{q}}$$ is the contribution from either $$D^0 \to K^-K^-K^+\pi^+$$ terms that pop an $$s\bar{s}$$ or corresponding $$D^0 \to K^- \pi^- \pi^+ \pi^+$$ terms that pop either $$u\bar{u}$$ or $$d\bar{d}$$ pair and $$P_{NoPop}$$ is the contributions from the $$D^0 \to K^- \pi^- \pi^+ \pi^+$$ terms that do not have such corresponding popping.

Authors:
 [1]
  1. Cincinnati U.
Publication Date:
Research Org.:
Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
Sponsoring Org.:
USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
OSTI Identifier:
1421467
Report Number(s):
FERMILAB-THESIS-2000-05; UMI-99-79957
538472
DOE Contract Number:  
AC02-07CH11359
Resource Type:
Thesis/Dissertation
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS

Citation Formats

Devmal, Shiral Cleophas. An Experimental Study of the Decay $D^0 \to K^- K^- K^+ \pi^+$. United States: N. p., 2000. Web. doi:10.2172/1421467.
Devmal, Shiral Cleophas. An Experimental Study of the Decay $D^0 \to K^- K^- K^+ \pi^+$. United States. doi:10.2172/1421467.
Devmal, Shiral Cleophas. Mon . "An Experimental Study of the Decay $D^0 \to K^- K^- K^+ \pi^+$". United States. doi:10.2172/1421467. https://www.osti.gov/servlets/purl/1421467.
@article{osti_1421467,
title = {An Experimental Study of the Decay $D^0 \to K^- K^- K^+ \pi^+$},
author = {Devmal, Shiral Cleophas},
abstractNote = {Using data from the E791 experiment at Fermi National Accelerator Laboratory (Fermilab), we have studied the Cabibbo favored, but phase space suppressed decay $D^0 \to K^-K^- K^+ \pi^+$ with the normalization channel $D^0 \to K^- \pi^- \pi^+ \pi^+$. We report the branching ratio of $D^0 \to K^- K^- K^+ \pi^+$ relative to the branching ratio of $D^0 \to K^- \pi^- \pi^+ \pi^+$. This value is (0.54 $\pm$ 0.13 $\pm$ 0.07)%. We see a clear signal of $K^-K^+$ resonance in the decay $D^0 \to K^-K^-K^+\pi^+$ from which we conclude that about (60 $\pm$ 30)% of $KKK\pi$ comes from $D^0 \to \phi K^-\pi^+; \phi \to K^-K^+$. We also set the range (0.30% - 0.90%) for the ratio $P_{q\overline{q}} = P_{NoPop}$ where $P_{q\bar{q}}$ is the contribution from either $D^0 \to K^-K^-K^+\pi^+$ terms that pop an $s\bar{s}$ or corresponding $D^0 \to K^- \pi^- \pi^+ \pi^+$ terms that pop either $u\bar{u}$ or $d\bar{d}$ pair and $P_{NoPop}$ is the contributions from the $D^0 \to K^- \pi^- \pi^+ \pi^+$ terms that do not have such corresponding popping.},
doi = {10.2172/1421467},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2000},
month = {5}
}

Thesis/Dissertation:
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