Author: Paras P. Naik
Publisher:
ISBN: 9781109885552
Category :
Languages : en
Pages : 156
Book Description
I present physics concepts, which are useful to understand our analyses, and describe the CLEO III and CLEO-c experiments at the Cornell Electron Storage Ring. I also present motivations for a Dalitz plot analysis of the Cabibbo-suppressed charmed meson decay mode D0 → K+K-pi 0 at CLEO. The analysis uses 9.0 fb-1 of data collected at s ≈ 10.58 GeV with the CLEO III detector. We find the strong phase difference deltaD ≡ argAD 0→K*+K- AD0→K*+K - = 332° +/- 8° +/- 11° and relative amplitude rD ≡ AD0→ K*+K-A D0→K*+K- = 0.52 +/- 0.05 +/- 0.04. This measurement indicates significant destructive interference between D0 → K+(K-pi 0)K*- and D0 → K- (K+pi0) K*+ in the D 0 → K+ K-pi0 Dalitz plot region where these two modes overlap. The fit includes the K*+/- and &phis; resonances and a non-resonant amplitude, and the measured fit fractions for each resonance (with statistical uncertainty only) are (46.1 +/- 3.1)% for the K*+, (12.3 +/- 2.2)% for the K*-, (14.9 +/- 1.6)% for the &phis;, and (36.0 +/- 3.7)% for the non-resonant contribution. We find deltaD = 313° +/- 9° (stat.) and an amplitude ratio of rD = 0.52 +/- 0.05 (stat.) from a second fit which substitutes scalar kappa+/- (mass 878 MeV/c2, width 499 MeV/c2) amplitudes for the non-resonant amplitude. The measured fit fractions for each resonance (with statistical uncertainty only) are (48.1 +/- 4.5)% for the K*+, (12.9 +/- 2.6)% for the K*-, (16.1 +/- 1.9)% for the &phis;, (12.6 +/- 5.8)% for the kappa+, and (11.1 +/- 4.7)% for the kappa-. We also investigate the D 0 → K+K -pi0 Dalitz plot in 281 pb-1 of data collected at s ≈ 3.77 GeV with the CLEO-c detector. We find results which are consistent with the CLEO III analysis. I conclude by summarizing our results and present a brief appendix detailing the K-matrix formalism.
Measurement of the Relative Amplitude and Strong Phase Between Antineutral D Meson Decaying to Kaon+ Resonance Kaon- and Neutral D Meson Decaying to Kaon+ Resonance Kaon- Via Dalitz Plot Analysis of Neutral D Meson Decaying to Kaon+ Kaon- Neutral Pion Decays
Author: Paras P. Naik
Publisher:
ISBN: 9781109885552
Category :
Languages : en
Pages : 156
Book Description
I present physics concepts, which are useful to understand our analyses, and describe the CLEO III and CLEO-c experiments at the Cornell Electron Storage Ring. I also present motivations for a Dalitz plot analysis of the Cabibbo-suppressed charmed meson decay mode D0 → K+K-pi 0 at CLEO. The analysis uses 9.0 fb-1 of data collected at s ≈ 10.58 GeV with the CLEO III detector. We find the strong phase difference deltaD ≡ argAD 0→K*+K- AD0→K*+K - = 332° +/- 8° +/- 11° and relative amplitude rD ≡ AD0→ K*+K-A D0→K*+K- = 0.52 +/- 0.05 +/- 0.04. This measurement indicates significant destructive interference between D0 → K+(K-pi 0)K*- and D0 → K- (K+pi0) K*+ in the D 0 → K+ K-pi0 Dalitz plot region where these two modes overlap. The fit includes the K*+/- and &phis; resonances and a non-resonant amplitude, and the measured fit fractions for each resonance (with statistical uncertainty only) are (46.1 +/- 3.1)% for the K*+, (12.3 +/- 2.2)% for the K*-, (14.9 +/- 1.6)% for the &phis;, and (36.0 +/- 3.7)% for the non-resonant contribution. We find deltaD = 313° +/- 9° (stat.) and an amplitude ratio of rD = 0.52 +/- 0.05 (stat.) from a second fit which substitutes scalar kappa+/- (mass 878 MeV/c2, width 499 MeV/c2) amplitudes for the non-resonant amplitude. The measured fit fractions for each resonance (with statistical uncertainty only) are (48.1 +/- 4.5)% for the K*+, (12.9 +/- 2.6)% for the K*-, (16.1 +/- 1.9)% for the &phis;, (12.6 +/- 5.8)% for the kappa+, and (11.1 +/- 4.7)% for the kappa-. We also investigate the D 0 → K+K -pi0 Dalitz plot in 281 pb-1 of data collected at s ≈ 3.77 GeV with the CLEO-c detector. We find results which are consistent with the CLEO III analysis. I conclude by summarizing our results and present a brief appendix detailing the K-matrix formalism.
Publisher:
ISBN: 9781109885552
Category :
Languages : en
Pages : 156
Book Description
I present physics concepts, which are useful to understand our analyses, and describe the CLEO III and CLEO-c experiments at the Cornell Electron Storage Ring. I also present motivations for a Dalitz plot analysis of the Cabibbo-suppressed charmed meson decay mode D0 → K+K-pi 0 at CLEO. The analysis uses 9.0 fb-1 of data collected at s ≈ 10.58 GeV with the CLEO III detector. We find the strong phase difference deltaD ≡ argAD 0→K*+K- AD0→K*+K - = 332° +/- 8° +/- 11° and relative amplitude rD ≡ AD0→ K*+K-A D0→K*+K- = 0.52 +/- 0.05 +/- 0.04. This measurement indicates significant destructive interference between D0 → K+(K-pi 0)K*- and D0 → K- (K+pi0) K*+ in the D 0 → K+ K-pi0 Dalitz plot region where these two modes overlap. The fit includes the K*+/- and &phis; resonances and a non-resonant amplitude, and the measured fit fractions for each resonance (with statistical uncertainty only) are (46.1 +/- 3.1)% for the K*+, (12.3 +/- 2.2)% for the K*-, (14.9 +/- 1.6)% for the &phis;, and (36.0 +/- 3.7)% for the non-resonant contribution. We find deltaD = 313° +/- 9° (stat.) and an amplitude ratio of rD = 0.52 +/- 0.05 (stat.) from a second fit which substitutes scalar kappa+/- (mass 878 MeV/c2, width 499 MeV/c2) amplitudes for the non-resonant amplitude. The measured fit fractions for each resonance (with statistical uncertainty only) are (48.1 +/- 4.5)% for the K*+, (12.9 +/- 2.6)% for the K*-, (16.1 +/- 1.9)% for the &phis;, (12.6 +/- 5.8)% for the kappa+, and (11.1 +/- 4.7)% for the kappa-. We also investigate the D 0 → K+K -pi0 Dalitz plot in 281 pb-1 of data collected at s ≈ 3.77 GeV with the CLEO-c detector. We find results which are consistent with the CLEO III analysis. I conclude by summarizing our results and present a brief appendix detailing the K-matrix formalism.
Measurement of the Strong Phase Delta (kaon Pion) Through the Decay of Quantum-correlated Neutral D-anti-D Meson Pairs
Author: Eric Justin White
Publisher: ProQuest
ISBN: 9780549911432
Category :
Languages : en
Pages : 125
Book Description
We exploit quantum correlations in coherent D 0D0 pairs produced at the psi(3770) resonance to measure the strong phase difference deltaKpi between D0 → K+pi- and D 0 → K-pi+ decays. Using 818 pb-1 of e+e- collisions collected by the CLEO-c detector, we report a measurement of deltaKpi extracted from a Dalitz plot fit of KSpi+pi- in the joint decay D0,D0 → K+/-pi∓, KSpi +pi-. We find a preliminary result of deltaKpi = (32.1 +/- 21.6 +/- 12)°, where the first error is statistical and the second is systematic.
Publisher: ProQuest
ISBN: 9780549911432
Category :
Languages : en
Pages : 125
Book Description
We exploit quantum correlations in coherent D 0D0 pairs produced at the psi(3770) resonance to measure the strong phase difference deltaKpi between D0 → K+pi- and D 0 → K-pi+ decays. Using 818 pb-1 of e+e- collisions collected by the CLEO-c detector, we report a measurement of deltaKpi extracted from a Dalitz plot fit of KSpi+pi- in the joint decay D0,D0 → K+/-pi∓, KSpi +pi-. We find a preliminary result of deltaKpi = (32.1 +/- 21.6 +/- 12)°, where the first error is statistical and the second is systematic.
Amplitude Analyses of the D Meson(+),Dmeson(+)(s) Going to Kaon(-)kaon(+)pion(+) and D Meson(0) Going to Kaon(o)(s)kaon(+)kaon(-) Final States
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
Interpretation of K-meson Decays
Author: Sidney A. Bludman
Publisher:
ISBN:
Category : Electromagnetic testing
Languages : en
Pages : 6
Book Description
Publisher:
ISBN:
Category : Electromagnetic testing
Languages : en
Pages : 6
Book Description
Measurement of the Lifetimes of the Neutral and Charged D Mesons
Author: Larry Donnie Gladney
Publisher:
ISBN:
Category :
Languages : en
Pages : 314
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 314
Book Description
Properties of the [Omega] Meson from [Kappa]− +[Rho] ->[Lambda] +[Omega]
Author:
Publisher:
ISBN:
Category : Mesons
Languages : en
Pages : 30
Book Description
Publisher:
ISBN:
Category : Mesons
Languages : en
Pages : 30
Book Description
Measurement of the Charged and Neutral D Meson Lifetimes
Author: John Mark Butler
Publisher:
ISBN:
Category :
Languages : en
Pages : 274
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 274
Book Description
Measurement of Mass and Width of the Excited Charmed Meson States D0(1) and D*0(2) at CDF.
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 9
Book Description
This paper describes a measurement of the mass and of the width of two neutral narrow resonances D1° and D*2°, both composed of a charm quark and an up antiquark. The difference with respect to the well-known resonance D°, also neutral and with the same quark composition, is that the two quarks have an orbital momentum 1, which increases their binding energy. Therefore the mass is larger than that of the D°. Since the relative orientation of the spin is the same, in the limit of very large charm mass, the masses of these resonances should be the same; their small difference is predicted by theory and therefore important to measurement to distinguish the different models. These states have been observed in their decay into a kaon and three pions; two of these particles are required to originate from a displaced vertex with respect to the primary interaction vertex, to account for the longer lifetime of the charmed mesons. The resonances parameters have been extracted using a fitting procedure accounting for the expected resonance shape, including effects from detector resolution and background, providing a new best single measurement of the D1° and D*2° masses and a competitive measurement of their widths.
Publisher:
ISBN:
Category :
Languages : en
Pages : 9
Book Description
This paper describes a measurement of the mass and of the width of two neutral narrow resonances D1° and D*2°, both composed of a charm quark and an up antiquark. The difference with respect to the well-known resonance D°, also neutral and with the same quark composition, is that the two quarks have an orbital momentum 1, which increases their binding energy. Therefore the mass is larger than that of the D°. Since the relative orientation of the spin is the same, in the limit of very large charm mass, the masses of these resonances should be the same; their small difference is predicted by theory and therefore important to measurement to distinguish the different models. These states have been observed in their decay into a kaon and three pions; two of these particles are required to originate from a displaced vertex with respect to the primary interaction vertex, to account for the longer lifetime of the charmed mesons. The resonances parameters have been extracted using a fitting procedure accounting for the expected resonance shape, including effects from detector resolution and background, providing a new best single measurement of the D1° and D*2° masses and a competitive measurement of their widths.
Semi-leptonic Charged D Meson Decays in 800 GeV P-emulsion Interactions
Author: Vittorio Paolone
Publisher:
ISBN:
Category :
Languages : en
Pages : 226
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 226
Book Description
Kaon and D Meson Masses with N_1tnf
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 7
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 7
Book Description