771 research outputs found

    Perkembangan Madrasah Tsanawiyah Madinatun Najah Di Bawah Yayasan Pendidikan Agama Islam Rengat Tahun 2006-2016

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    Education as one of the most important sectors in the national development, be a mainstay for functioning as much as possible in an effort to improve the quality of Indonesian human life. Therefore in this case the private education play an active role in promoting education in the District Rengat Indragiri Hulu with the establishment of educational institutions under the auspices of the Foundation for Islamic Education Rengat (YPAIR) is the Foundation oldest first in Indragiri Hulu stands at 22 March 1942, starting On 25 January 1975 YPAIR merged into MTs Madinatun. The purpose of this research is to know the history and development of MTs Madinatn Najah under YPAIR in advancing education in the District Rengat Indragiri Hulu period 2006-2016. The method used is the historical method in which data were collected through observation, interviews, documentation, and literature. Data analysis using the method of writing history. When the study began filing titles proposal until the completion of thesis writers. The results showed that the MTs Madinatun Najah has developed very rapidly from a standing start in District Rengat Indragiri Hulu. The development of such an increase in facilities and infrastructure, teachers, students, and curriculum. This is not out of the efforts of MTs Madinatun Najah in improving the quality and quantity in the District Rengat Indragiri Hulu

    Search for CP violation in D0 and D+ decays

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    A high statistics sample of photoproduced charm particles from the FOCUS (E831) experiment at Fermilab has been used to search for CP violation in the Cabibbo suppressed decay modes D+ to K-K+pi+, D0 to K-K+ and D0 to pi-pi+. We have measured the following CP asymmetry parameters: A_CP(K-K+pi+) = +0.006 +/- 0.011 +/- 0.005, A_CP(K-K+) = -0.001 +/- 0.022 +/- 0.015 and A_CP(pi-pi+) = +0.048 +/- 0.039 +/- 0.025 where the first error is statistical and the second error is systematic. These asymmetries are consistent with zero with smaller errors than previous measurements.Comment: 12 pages, 4 figure

    A High Statistics Measurement of the Lambdac+ Lifetime

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    A high statistics measurement of the Lambdac+ lifetime from the Fermilab fixed-target FOCUS photoproduction experiment is presented. We describe the analysis technique with particular attention to the determination of the systematic uncertainty. The measured value of 204.6 +/- 3.4 (stat.) +/- 2.5 (syst.) fs from 8034 +/- 122 Lambdac -> pKpi decays represents a significant improvement over the present world average.Comment: Submitted to Physical Review Letter

    Search for CP violation in D0 and D+ decays

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    A high statistics sample of photoproduced charm particles from the FOCUS (E831) experiment at Fermilab has been used to search for CP violation in the Cabibbo suppressed decay modes D+ to K-K+pi+, D0 to K-K+ and D0 to pi-pi+. We have measured the following CP asymmetry parameters: A_CP(K-K+pi+) = +0.006 +/- 0.011 +/- 0.005, A_CP(K-K+) = -0.001 +/- 0.022 +/- 0.015 and A_CP(pi-pi+) = +0.048 +/- 0.039 +/- 0.025 where the first error is statistical and the second error is systematic. These asymmetries are consistent with zero with smaller errors than previous measurements.Comment: 12 pages, 4 figure

    Search for CP Violation in the decays D+ -> K_S pi+ and D+ -> K_S K+

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    A high statistics sample of photo-produced charm from the FOCUS(E831) experiment at Fermilab has been used to search for direct CP violation in the decays D+->K_S pi+ and D+ -> K_S K+. We have measured the following asymmetry parameters relative to D+->K-pi+pi+: A_CP(K_S pi+) = (-1.6 +/- 1.5 +/- 0.9)%, A_CP(K_S K+) = (+6.9 +/- 6.0 +/- 1.5)% and A_CP(K_S K+) = (+7.1 +/- 6.1 +/- 1.2)% relative to D+->K_S pi+. The first errors quoted are statistical and the second are systematic. We also measure the relative branching ratios: \Gamma(D+->\bar{K0}pi+)/\Gamma(D+->K-pi+pi+) = (30.60 +/- 0.46 +/- 0.32)%, \Gamma(D+->\bar{K0}K+)/\Gamma(D+->K-pi+pi+) = (6.04 +/- 0.35 +/- 0.30)% and \Gamma(D+->\bar{K0}K+)/\Gamma(D+->\bar{K0}pi+) = (19.96 +/- 1.19 +/- 0.96)%.Comment: 4 pages, 3 figure

    A Non-parametric Approach to the D+ to K*0bar mu+ nu Form Factors

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    Using a large sample of D+ -> K- pi+ mu+ nu decays collected by the FOCUS photoproduction experiment at Fermilab, we present the first measurements of the helicity basis form factors free from the assumption of spectroscopic pole dominance. We also present the first information on the form factor that controls the s-wave interference discussed in a previous paper by the FOCUS collaboration. We find reasonable agreement with the usual assumption of spectroscopic pole dominance and measured form factor ratios.Comment: 14 pages, 5 figures, and 2 tables. We updated the previous version by changing some words, removing one plot, and adding two tables. These changes are mostly stylisti

    Search for Λc+pK+π\Lambda_c^+ \to p K^+ \pi^- and Ds+K+K+πD_s^+ \to K^+ K^+ \pi^- Using Genetic Programming Event Selection

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    We apply a genetic programming technique to search for the double Cabibbo suppressed decays Λc+pK+π\Lambda_c^+ \to p K^+ \pi^- and Ds+K+K+πD_s^+ \to K^+ K^+ \pi^-. We normalize these decays to their Cabibbo favored partners and find BR(\text{BR}(\Lambda_c^+ \to p K^+ \pi^-)/BR()/\text{BR}(\Lambda_c^+ \to p K^- \pi^+)=(0.05±0.26±0.02)) = (0.05 \pm 0.26 \pm 0.02)% and BR(\text{BR}(D_s^+ \to K^+ K^+ \pi^-)/BR()/\text{BR}(D_s^+ \to K^+ K^- \pi^+)=(0.52±0.17±0.11)) = (0.52\pm 0.17\pm 0.11)% where the first errors are statistical and the second are systematic. Expressed as 90% confidence levels (CL), we find <0.46< 0.46 % and <0.78 < 0.78% respectively. This is the first successful use of genetic programming in a high energy physics data analysis.Comment: 10 page

    A measurement of lifetime differences in the neutral D-meson system

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    Using a high statistics sample of photoproduced charm particles from the FOCUS experiment at Fermilab, we compare the lifetimes of neutral D mesons decaying via D0 to K- pi+ and K- K+ to measure the lifetime differences between CP even and CP odd final states. These measurements bear on the phenomenology of D0 - D0bar mixing. If the D0 to K-pi+ is an equal mixture of CP even and CP odd eigenstates, we measure yCP = 0.0342 \pm 0.0139 \pm 0.0074.Comment: 15 pages, 5 figure

    Measurement of the relative branching ratio BR(\Xi_c^+ \to p^+ K^-\pi^+)\BR(\Xi_c^+ \to \Xi^- \pi^+ \pi^+)

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    We report the observation of the Cabibbo suppressed decay \Xi_c^+ \to p K^-\pi^+ using data collected with the FOCUS spectrometer during the 1996--97 Fermilab fixed target run. We find a \Xi_c^+ signal peak of 202\pm35 events. We have measured the relative branching ratios BR(\Xi^+_c\to p K^-\pi^+)/BR(\Xi^+_c\to\Xi^-\pi^+\pi^+)= 0.234 \pm 0.047 \pm 0.022 and BR(\Xi^+_c\to p \bar{K}^*(892)^0)/BR(\Xi^+_c\to p K^-\pi^+)= 0.54 \pm 0.09 \pm 0.05 .Comment: 9 pages, 4 figure

    Measurements of Ξc+\Xi_c^{+} Branching Ratios

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    Using data collected by the fixed target Fermilab experiment FOCUS, we measure the branching ratios of the Cabibbo favored decays Ξc+Σ+Kπ+\Xi_c^+ \to \Sigma^+K^-\pi^+, Ξc+Σ+Kˉ(892)0\Xi_c^+ \to \Sigma^+ \bar{K}^{*}(892)^0, and Ξc+Λ0Kπ+π+\Xi_c^+ \to \Lambda^0K^-\pi^+\pi^+ relative to Ξc+Ξπ+π+\Xi_c^+ \to \Xi^-\pi^+\pi^+ to be 0.91±0.11±0.040.91\pm0.11\pm0.04, 0.78±0.16±0.060.78\pm0.16\pm0.06, and 0.28±0.06±0.060.28\pm0.06\pm0.06, respectively. We report the first observation of the Cabibbo suppressed decay Ξc+Σ+K+K\Xi_c^+ \to \Sigma^+K^+K^- and we measure the branching ratio relative to Ξc+Σ+Kπ+\Xi_c^+ \to \Sigma^+K^-\pi^+ to be 0.16±0.06±0.010.16\pm0.06\pm0.01. We also set 90% confidence level upper limits for Ξc+Σ+ϕ\Xi_c^+ \to \Sigma^+ \phi and Ξc+Ξ(1690)0(Σ+K)K+\Xi_c^+ \to \Xi^*(1690)^0(\Sigma^+ K^-) K^+ relative to Ξc+Σ+Kπ+\Xi_c^+ \to \Sigma^+K^-\pi^+ to be 0.12 and 0.05, respectively. We find an indication of the decays Ξc+ΩK+π+\Xi_c^+ \to \Omega^-K^{+}\pi^+ and Ξc+Σ(1385)+Kˉ0\Xi_c^+ \to \Sigma^{*}(1385)^+ \bar{K}^0 and set 90% confidence level upper limits for the branching ratios with respect to Ξc+Ξπ+π+\Xi_c^+ \to \Xi^-\pi^+\pi^+ to be 0.12 and 1.72, respectively. Finally, we determine the 90% C.L. upper limit for the resonant contribution Ξc+Ξ(1530)0π+\Xi_c^+ \to \Xi^{*}(1530)^0 \pi^+ relative to Ξc+Ξπ+π+\Xi_c^+ \to \Xi^-\pi^+\pi^+ to be 0.10.Comment: 14 pages, 8 figure
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