Measurement of CP-violating Asymmetries in the D0 - [pi]+ [pi]- and D0 - K+ K- Decays at CDF PDF Download

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Measurement of CP-violating Asymmetries in the D0 - [pi]+ [pi]- and D0 - K+ K- Decays at CDF

Measurement of CP-violating Asymmetries in the D0 - [pi]+ [pi]- and D0 - K+ K- Decays at CDF PDF Author: Angelo Di Canto
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Languages : en
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Measurement of CP-violating Asymmetries in the D0 - [pi]+ [pi]- and D0 - K+ K- Decays at CDF

Measurement of CP-violating Asymmetries in the D0 - [pi]+ [pi]- and D0 - K+ K- Decays at CDF PDF Author: Angelo Di Canto
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ISBN:
Category :
Languages : en
Pages :

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Measurement of CP-violating Asymmetries in the Do ->[pi]+[pi]- and Do->K+K- Decays at CDF

Measurement of CP-violating Asymmetries in the Do ->[pi]+[pi]- and Do->K+K- Decays at CDF PDF Author:
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Category :
Languages : en
Pages : 142

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Measurement of CP-Violating Asymmetries in $D^0 \to \pi^+ \pi^-$ and $D^0 \to K^+ K^- $ Decays at CDF.

Measurement of CP-Violating Asymmetries in $D^0 \to \pi^+ \pi^-$ and $D^0 \to K^+ K^- $ Decays at CDF. PDF Author:
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Languages : en
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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].

Measurement of CP--violating Asymmetries in $D0̂\to\pi+̂\pi-̂$ and $D0̂\to K+̂K-̂$ Decays at CDF.

Measurement of CP--violating Asymmetries in $D0̂\to\pi+̂\pi-̂$ and $D0̂\to K+̂K-̂$ Decays at CDF. PDF Author:
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Category :
Languages : en
Pages : 29

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We report on a measurement of CP-violating asymmetries (A{sub CP}) in the Cabibbo-suppressed D° →??− and D° → K+K− decays reconstructed in a data sample corresponding to 5.9 fb−1 of integrated luminosity collected by the upgraded Collider Detector at Fermilab. We use the strong decay D*+ → D°?+ to identify the flavor of the charmed meson at production and exploit CP-conserving strong c{bar c} pair-production in p{bar p} collisions. High-statistics samples of Cabibbo-favored D° → K−?+ decays with and without a D*{sup ±} tag are used to correct for instrumental effects and significantly reduce systematic uncertainties. We measure A{sub CP}(D° →?+?−) = (+0.22 ± 0.24(stat) ± 0.11 (syst))% and A{sub CP}(D° → K+K−) = ( -0.24 ± 0.22 (stat) {+-} 0.09 (syst))%, in agreement with CP conservation. These are the most precise determinations from a single experiment to date. Under the assumption of negligible direct CP violation in D° →?+?− and D° → K+K− decays, the results provide an upper limit to the CP-violating asymmetry in D° mixing,

Measurement of CP-violating Asymmetries in the D0 - Π+ Π- and D0 - K+ K- Decays at CDF

Measurement of CP-violating Asymmetries in the D0 - Π+ Π- and D0 - K+ K- Decays at CDF PDF Author: Angelo Di Canto
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ISBN:
Category :
Languages : en
Pages : 0

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Measurement of CP-violating Asymmetries in the D° ->π+π- and D°->K+K- Decays at CDF

Measurement of CP-violating Asymmetries in the D° ->π+π- and D°->K+K- Decays at CDF PDF Author: Angelo Di Canto
Publisher:
ISBN:
Category :
Languages : en
Pages : 142

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Measurement of Indirect CP-violating Asymmetries in D02!+K- and D02!pi]+[pi]- Decays at CDF.

Measurement of Indirect CP-violating Asymmetries in D02!+K- and D02!pi]+[pi]- Decays at CDF. PDF Author:
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Category :
Languages : en
Pages :

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Measurement of CP{u2013}Violating Asymmetries in $D0̂ \to \pi+̂ \pi-̂$ and $D0̂ \to K+̂ K-̂ $ Decays at CDF.

Measurement of CP{u2013}Violating Asymmetries in $D0̂ \to \pi+̂ \pi-̂$ and $D0̂ \to K+̂ K-̂ $ Decays at CDF. PDF Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 152

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We report a search for non–Standard Model physics through the measurement of CP–violating asymmetries in the singly–Cabibbo– suppressed $D0̂ o pi+̂ pi-̂$ and $D0̂ o K+̂ K-̂ $ decays reconstructed in about 5.9 fb-1 of CDF data. We use the strong $D{̂*+} o D0̂pi+̂$ 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 $D0̂ o K-̂pi+̂$ 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].

Measurement of Time-dependent CP Asymmetries InB0-]D(*)pi and B0-]Drho Decays

Measurement of Time-dependent CP Asymmetries InB0-]D(*)pi and B0-]Drho Decays PDF Author:
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Category :
Languages : en
Pages : 8

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We present updated results on time-dependent CP asymmetries in fully reconstructed B° → D{sup (*)±}[pi]{sup {-+}} and B° → D{sup ±}[rho]{sup {-+}} decays in approximately 232 million [Upsilon](4S) → B{bar B} events collected with the BABAR detector at the PEP-II asymmetric-energy B factory at SLAC. From a time-dependent maximum likelihood fit we obtain for the parameters related to the CP violation angle 2[beta] + [gamma]: a{sup D{pi}} = -0.010 ± 0.023 ± 0.007, c{sub lep}{sup D{pi}} = -0.033 ± 0.042 ± 0.012, a{sup D*{pi}} = -0.040 ± 0.023 ± 0.010, C{sub lep}{sup D*{pi}} = 0.049 ± 0.042 ± 0.015, a{sup D{rho}} = -0.024 ± 0.031 ± 0.009, c{sub lep}{sup D{rho}} = -0.098 {+-} 0.055 {+-} 0.018, where the first error is statistical and the second is systematic. Using other measurements and theoretical assumptions, we interpret the results in terms of the angles of the Cabibbo-Kobayashi-Maskawa unitarity triangle and find

Precision Measurement of CP Violation in $D0̂\to\pi+̂\pi-̂$ at CDF.

Precision Measurement of CP Violation in $D0̂\to\pi+̂\pi-̂$ at CDF. PDF Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 6

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Book Description
We report a preliminary measurement of the CP violating asymmetry in D° →??− using approximately 215,000 decays reconstructed in about 5.94/fb of CDF data. We use the strong D* ± D°?+ decay (D* tag) to identify the flavor of the charmed meson at production time and exploit CP-conserving strong c-{bar c} pair-production in p-{bar p} collisions. Higher statistic samples of Cabibbo-favored D° → K−?+ decays with and without D* tag are used to highly suppress systematic uncertainties due to detector effects. The result is the world's most precise measurement to date.