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CERN Document Server Sök i 41 journaler efter:  1 - 10nästaslut  gå till journal: Sökningen tog 0.60 sekunder. 
1.
Measurement of the branching ratio of the decay $\Xi^{0} \rightarrow \Sigma^{+} \mu^{-} \overline{\nu}_{\mu}$ / NA48/1 Collaboration
From the 2002 data taking with a neutral kaon beam extracted from the CERN-SPS, the NA48/1 experiment observed 97 $\Xi^{0}\rightarrow \Sigma^{+} \mu^{-} \bar{\nu}_{\mu}$ candidates with a background contamination of $30.8 \pm 4.2$ events. From this sample, the BR($\Xi^{0}\rightarrow \Sigma^{+} \mu^{-} \bar{\nu}_{\mu}$) is measured to be $(2.17 \pm 0.32_{\mathrm{stat}}\pm 0.17_{\mathrm{syst}})\times10^{-6}$..
arXiv:1212.3131; CERN-PH-EP-2012-288; CERN-PH-EP-2012-288.- Geneva : CERN, 2013-03-13 - 10 p. - Published in : Phys. Lett. B 720 (2013) 105-110 Draft (restricted): PDF; Fulltext: muon_paper_accepted - PDF; arXiv:1212.3131 - PDF; Preprint: PDF; External link: Preprint
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2.
Precision measurement of the ratio BR($K_{S} \to \pi^{+}\pi^{-}e^{+}e^{-}$)/BR($K_{L} \to \pi^{+}\pi^{-}\pi^{0}_{D}$) / NA48 Collaboration
The $K_{S} \rightarrow \pi^{+}\pi^{-}e^{+}e^{-}$ decay mode was investigated using the data collected in 2002 by the NA48/1 collaboration. With about 23,k $K_{S} \rightarrow \pi^{+}\pi^{-}e^{+}e^{-}$ events and 59,k $K_{L} \rightarrow \pi^{+}\pi^{-}\pi^{0}_{D}$ normalization decays, the $K_{S} \rightarrow \pi^{+}\pi^{-}e^{+}e^{-}$ branching ratio relative to the $K_{L}\rightarrow \pi^{+}\pi^{-}\pi^{0}_{D}$ one was determined to be BR($K_{S} \rightarrow \pi^{+}\pi^{-}e^{+}e^{-}$)/BR($K_{L} \rightarrow \pi^{+}\pi^{-}\pi^{0}_{D}$) = $ (3.28 \pm 0.06_{stat}\pm 0.04_{syst})\times 10^{-2}$. [...]
CERN-PH-EP-2010-025.- Geneva : CERN, 2011 - 17 p. - Published in : Phys. Lett. B 694 (2011) 301-309 Fulltext: PDF;
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3.
Measurement of the branching ratios of the decays $\Xi^{0}\rightarrow \sigma^{+} e^{-} \overline{\nu}_{e}$ and $\overline{\Xi^{0}}\rightarrow \overline{\sigma^{+}} e^{+} \nu_{e}$ / NA48/1 Collaboration
From 56 days of data taking in 2002, the NA48/1 experiment observed 6316 $\Xi^{0}\rightarrow \Sigma^{+} e^{-} \overline{\nu}_{e}$ candidates (with the subsequent $\Sigma^{+} \rightarrow p \pi^{0}$ decay) and 555 $\overline{\Xi^{0}}\rightarrow \overline{\Sigma^{+}} e^{+} \nu_{e}$ candidates with background contamination of $215 \pm 44$ and $136 \pm 8$ events, respectively. From these samples, the branching ratios BR($\Xi^{0}\rightarrow \Sigma^{+} e^{-} \overline{\nu}_{e})=(2.51 \pm0.03_{\mathrm{stat}}\pm 0.09_{\mathrm{syst}})\times10^{-4}$ and BR($\overline{\Xi^{0}}\rightarrow \overline{\Sigma^{+}} e^{+} \nu_{e})= (2.55 \pm 0.12_{\mathrm{stat}}\pm{0.10}_{\mathrm{syst}}) \times 10^{-4}$ were measured allowing the determination of the CKM matrix element $|V_{\mathrm{us}}| = 0.209^{+0.023}_{-0.028}$. [...]
hep-ex/0612043; CERN-PH-EP-2006-032; CERN-PH-EP-2006-032.- Geneva : CERN, 2007 - 16 p. - Published in : Phys. Lett. B 645 (2007) 36-46 Fulltext: S0370269306015541 - XML; 0612043 - PDF; arXiv:hep-ex_0612043 - PDF; phep-2006-032 - PDF; External link: Preprint
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4.
Proposal for a new Tevatron search for direct CP violation in the 2 pi decays of the neutral kaon / Arisaka, K ; Barker, A ; Bock, G J ; Briere, R A ; Coleman, R ; Crisler, M ; Enagonio, J ; Ford, R ; Gibbons, L K ; Gollin, G D et al.
FERMILAB-PROPOSAL-0832. - 1990. - 28 p.
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5.
A novel large-acceptance threshold gas Cherenkov counter / Ambats, I ; Hayes, E R ; Ward, C E W ; Keig, W E ; Park, D A ; Swallow, E C ; Winston, R ; Romanowsky, T A
ANL-HEP-PR-76-31 ; EFI-75-65-[CHICAGO]. - 1976. - 18 p.
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6.
Implications of recent data on b $\Sigma^{-} \to $ne-$\mu$ for the Cabibbo model / García, A ; Swallow, E C
EFI-75-20-[CHICAGO]. - 1975. - 8 p.
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7.
Measurement of the polarization parameter in small angle proton-proton elastic scattering at 6 Gev/c / Rust, D R ; Ambats, I ; Ayres, D S ; Crittenden, R R ; Diebold, R ; Heinz, R M ; Jost, R J ; Kramer, S L ; Lesnik, A ; Meyer, W T et al.
ANL-HEP-PR-75-05 ; ANL-HEP-PR-75-05 ; COO-2009-90 ; EFI-75-4-[CHICAGO]. - 1975. - 10 p.
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8.
A Measurement of the Branching Ratio of K(L) ---> e+e- gamma gamma / KTeV Collaboration
FERMILAB-PUB-2000-282-E. - 2000.
Full text from Fermilab
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9.
Search for the Decay K(L) ---> pi0 e+ e- / KTeV Collaboration
FERMILAB-PUB-2000-225-E. - 2000.
Full text from Fermilab
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10.
Observation of the decay $K_{L} \to \mu^{+} \mu^{-} \gamma \gamma$ / KTeV Collaboration
FERMILAB-PUB-2000-023-E. - 2000.
Record from Fermilab
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14 Swallow, E
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