Search for CP Violation Using T-odd Correlations in D+ to K+K0spi+pi- and DS+ to K+K0spi+pi- Decays PDF Download
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Languages : en
Pages : 8
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We search for CP violation in a sample of 20,000 Cabibbo-suppressed decays, D+ → K+K{sub S}°?+?−, and 30,000 Cabibbo-favored decays, D{sub s}+ → K+K{sub S}°?+?−. We use 520 fb−1 of data recorded by the BABAR detector at the PEP-II asymmetric-energy e+e− collider operating at center of mass energies near 10.6 GeV. We search for CP violation in the difference between the T-odd asymmetries obtained using triple product correlations of the D+ (D{sub s}+) and D− (D{sub s}−) decays, respectively. The T violation parameter values obtained are ?{sub T} (D+) = (-12.0 ± 10.0{sub stat} ± 4.6{sub syst}) x 10−3 and ?{sub T}(D{sub s}+) = (-13.6 ± 7.7{sub stat} ± 3.4{sub syst}) x 10−3, which are consistent with the Standard Model expectations.
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Languages : en
Pages : 8
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Book Description
We search for CP violation in a sample of 20,000 Cabibbo-suppressed decays, D+ → K+K{sub S}°?+?−, and 30,000 Cabibbo-favored decays, D{sub s}+ → K+K{sub S}°?+?−. We use 520 fb−1 of data recorded by the BABAR detector at the PEP-II asymmetric-energy e+e− collider operating at center of mass energies near 10.6 GeV. We search for CP violation in the difference between the T-odd asymmetries obtained using triple product correlations of the D+ (D{sub s}+) and D− (D{sub s}−) decays, respectively. The T violation parameter values obtained are ?{sub T} (D+) = (-12.0 ± 10.0{sub stat} ± 4.6{sub syst}) x 10−3 and ?{sub T}(D{sub s}+) = (-13.6 ± 7.7{sub stat} ± 3.4{sub syst}) x 10−3, which are consistent with the Standard Model expectations.
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Languages : en
Pages : 7
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We search for CP violation in a sample of 4.7 x 104 Cabibbo suppressed D° → KK−?+?− decays. We use 470 fb−1 of data recorded by the BABAR detector at the PEP-II asymmetric-energy e+e− storage rings running at center-of-mass energies near 10.6 GeV. CP violation is searched for in the difference between the T-odd asymmetries, obtained using triple product correlations, measured for D° and {bar D}° decays. The measured CP violation parameter is A{sub T} = (1.0 ± 5.1{sub stat} ± 4.4{sub syst}) x 10−3.
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Languages : en
Pages : 4
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![A Search for Direct CP Violation in K[+-]-->[pi+-][pi+-][pi+-] Decays PDF](https://books.google.com/books/content/images/frontcover/iahNAQAAMAAJ?fife=w80-h100)
Author: Woon-Seng Choong
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Languages : en
Pages : 338
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Languages : en
Pages : 125
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We search for CP violation in a sample of 4.7 x 104 singly Cabibbo suppressed D0 2!K+ K- [pi]+[pi]- decays and 1.8(2.6) x 104 D(s)+ 2!KS0 K+ [pi]+ [pi]- decays. CP violation is searched for in the difference between the T-odd asymmetries, obtained using triple product correlations, measured for D and D decays. The measured CP violation parameters are AT(D0) = (1.0 ± 5.1(stat) ± 4.4(syst)) x 10-3, AT(D+) = ( -11.96 ± 10.04(stat) ± 4.81(syst)) x 10-3 and AT(Ds+) = ( -13.57 ± 7.67(stat) ± 4.82(syst)) x 10-3. This search for CP violation showed that the T-odd correlations are a powerful tool to measure the CP violating observable AT. The relative simplicity of an analysis based on T-odd correlations and the high quality results that can be obtained, allow to consider this tool as fundamental to search for CP violation in four-body decays. Even if the CP violation has not been found, excluding any New Physics effect to the sensitivity of about 0.5%, it is still worth to search for CP violation in D decays. The high statistics that can be obtained at the LHC or by the proposed high luminosity B-factories, make this topic to be considered in high consideration by experiments such as LHCb, SuperB or SuperBelle. The results outlined in this thesis strongly suggest to include a similar analysis into the Physics program of these experiments.
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Languages : en
Pages : 7
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We measure CP-violating asymmetries of neutral charmed mesons in the modes D° → K−K and D° →?−?+ with the highest precision to date by using D° → K−?+ decays to correct detector asymmetries. An analysis of 385.8 fb−1 of data collected with the BaBar detector yields values of a{sup KK}{sub CP} = (0.00 ± 0.34 (stat.) ± 0.13 (syst.))% and a{sup?{pi}}{sub CP} = ( -0.24 ± 0.52 (stat.) ± 0.22 (syst.))%, which agree with Standard Model predictions.
![Exploring CP Violation Through Correlations in B → [Pi] K, B D → [Pi] + [Pi] -, B S → K + K - Observable Space PDF](https://books.google.com/books/content/images/frontcover/5xNotwAACAAJ?fife=w80-h100)
Author: Robert Fleischer
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Languages : en
Pages :
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![A Search for Direct CP Violation in the Decay K[L,S] [right Arrow] [pi]+[pi]−[gamma] PDF](https://books.google.com/books/content/images/frontcover/Q-C4PQAACAAJ?fife=w80-h100)
Author: Michael Christopher Ronquest
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Languages : en
Pages : 710
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![Exploring CP Violation Through Correlations in B → ΠK [pi-K], Bd → Π+π ̄ [pi-pi], Bs → K+K ̄ Observable Space PDF](https://books.google.com/books/content/images/frontcover/SwbNzQEACAAJ?fife=w80-h100)
Author: Robert Fleischer
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Languages : en
Pages :
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![CP-violation in the K +- →[pi +- [pi] +- [pi] -+] Decays PDF](https://books.google.com/books/content/images/frontcover/bToXtwAACAAJ?fife=w80-h100)
Author: E. P. Šabalin
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Languages : en
Pages : 11
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