Author: James E. Pilcher
Publisher:
ISBN:
Category : Mesons
Languages : en
Pages :
Book Description
Experimental Study of Some Radiative Decay Modes of the KL̳ and KS̳ Mesons
Experimental Study of Some Radiative Decay Modes of the K(l) and K(s) Mesons
Author: James E. Pilcher
Publisher:
ISBN:
Category :
Languages : en
Pages : 142
Book Description
A study of radiative decays of the neutral K mesons yielded the following limits with 90% confidence R(K(s) to 2 gamma rays)/R(K(s) to all)
Publisher:
ISBN:
Category :
Languages : en
Pages : 142
Book Description
A study of radiative decays of the neutral K mesons yielded the following limits with 90% confidence R(K(s) to 2 gamma rays)/R(K(s) to all)
Experimental Study of the K+[mu]3 and K+e3 Decay Modes of the K+ Meson
Author:
Publisher:
ISBN:
Category : Kaons
Languages : en
Pages : 64
Book Description
Publisher:
ISBN:
Category : Kaons
Languages : en
Pages : 64
Book Description
A Study of Some Rare Decay Modes of the K-plus Meson
Author: David Cline
Publisher:
ISBN:
Category : Mesons
Languages : en
Pages : 302
Book Description
Publisher:
ISBN:
Category : Mesons
Languages : en
Pages : 302
Book Description
An Experimental Study of Radiative Muon Decay
Author: Brent Adams VanDevender
Publisher:
ISBN:
Category :
Languages : en
Pages : 256
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 256
Book Description
An Experimental Study of the 2 Neutral-pion Decay of the Long-lived Neutral K-meson
Author: Paul C. Wheeler
Publisher:
ISBN:
Category :
Languages : en
Pages : 151
Book Description
The 2 neutral-pion CP-violating decay of the neutral-K2-meson was studied in a recent experiment at the Princeton-Pennsylvania Accelerator. The energy spectrum of generated gamma-rays was obtained for the center-of-mass system of the neutral-K2 and used to measure the branching ratio (neutral-K2 to 2 neutral-pions)/(neutral-K2 to all modes). An upper limit of 0.0031 was obtained by normalizing to the neutral-K2 to 3 neutral-pion decay mode. (Author).
Publisher:
ISBN:
Category :
Languages : en
Pages : 151
Book Description
The 2 neutral-pion CP-violating decay of the neutral-K2-meson was studied in a recent experiment at the Princeton-Pennsylvania Accelerator. The energy spectrum of generated gamma-rays was obtained for the center-of-mass system of the neutral-K2 and used to measure the branching ratio (neutral-K2 to 2 neutral-pions)/(neutral-K2 to all modes). An upper limit of 0.0031 was obtained by normalizing to the neutral-K2 to 3 neutral-pion decay mode. (Author).
Scientific and Technical Aerospace Reports
Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 1036
Book Description
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 1036
Book Description
Radiative and Pionic Decays of Heavy-light Mesons Using HISQ Quarks
Author: Maysam Emadi
Publisher:
ISBN:
Category :
Languages : en
Pages : 171
Book Description
In this thesis we use the highly improved staggered quark (HISQ) formalism to study the radiative and pionic transitions of charmed mesons within the framework of lattice QCD. The HISQ action is one of the most accurate formulations of charm quarks and is a result of a perturbative Symanzik improvement program to reduce lattice discretization errors. Decay widths are calculated in numerical simulations on an ensemble of gauge field configurations with $N_f=2+1$ asqtad sea quarks generated by the MILC collaboration. In addition we study $H_ŝ\ast$ and charmonium radiative decays as well as meson electric form factors. Experimental measurements of the decay ratios of vector charmed $D̂{\ast\pm0}$ and charmed strange $D_ŝ{\ast\pm}$ mesons, show a few curious features that are of great phenomenological interest in the study of low energy hadronic physics. Unlike most mesons, the strong hadronic decay modes of $D̂{\ast0}$ and $D_ŝ{\ast\pm}$, are not dominant. However, while the neutral $D$ has a radiative mode that is competitive with its pionic mode, the charged $D$ meson's radiative decay is highly suppressed relative to that of the neutral. This suppression provides a detailed probe of strong interactions and is apparently due to an interesting near cancellation that takes place between the photon's coupling to the charm quark and to the down antiquark. The results are in agreement with all of the available experimental data, and in particular, we show that the HISQ action successfully accounts for the near cancellation of the charmed $D̂{\ast\pm}$ radiative decay. The relative suppression is demonstrated in our result for the ratio of the radiative form factors of $D$ mesons $V̂\pm(0)/V̂0(0)=0.126(36)$ computed at heavier than physical $u/d$ quark masses. The quoted errors are purely statistical. Evidence from other lattice studies indicate small systematic errors in continuum and sea quark chiral extrapolations. Valence quark chiral extrapolation increases our errors by about 50\%. A rough extrapolation suggests an agreement with the measured radiative width within $2\sigma$.
Publisher:
ISBN:
Category :
Languages : en
Pages : 171
Book Description
In this thesis we use the highly improved staggered quark (HISQ) formalism to study the radiative and pionic transitions of charmed mesons within the framework of lattice QCD. The HISQ action is one of the most accurate formulations of charm quarks and is a result of a perturbative Symanzik improvement program to reduce lattice discretization errors. Decay widths are calculated in numerical simulations on an ensemble of gauge field configurations with $N_f=2+1$ asqtad sea quarks generated by the MILC collaboration. In addition we study $H_ŝ\ast$ and charmonium radiative decays as well as meson electric form factors. Experimental measurements of the decay ratios of vector charmed $D̂{\ast\pm0}$ and charmed strange $D_ŝ{\ast\pm}$ mesons, show a few curious features that are of great phenomenological interest in the study of low energy hadronic physics. Unlike most mesons, the strong hadronic decay modes of $D̂{\ast0}$ and $D_ŝ{\ast\pm}$, are not dominant. However, while the neutral $D$ has a radiative mode that is competitive with its pionic mode, the charged $D$ meson's radiative decay is highly suppressed relative to that of the neutral. This suppression provides a detailed probe of strong interactions and is apparently due to an interesting near cancellation that takes place between the photon's coupling to the charm quark and to the down antiquark. The results are in agreement with all of the available experimental data, and in particular, we show that the HISQ action successfully accounts for the near cancellation of the charmed $D̂{\ast\pm}$ radiative decay. The relative suppression is demonstrated in our result for the ratio of the radiative form factors of $D$ mesons $V̂\pm(0)/V̂0(0)=0.126(36)$ computed at heavier than physical $u/d$ quark masses. The quoted errors are purely statistical. Evidence from other lattice studies indicate small systematic errors in continuum and sea quark chiral extrapolations. Valence quark chiral extrapolation increases our errors by about 50\%. A rough extrapolation suggests an agreement with the measured radiative width within $2\sigma$.
A Study of Some Rare Decay Modes of the \K+\K-plus\ Meson
Author: David Bruce Cline
Publisher:
ISBN:
Category : Kaons
Languages : en
Pages : 228
Book Description
Publisher:
ISBN:
Category : Kaons
Languages : en
Pages : 228
Book Description
Decay Modes of Negative K Mesons
Author: A. Gosta Ekspong
Publisher:
ISBN:
Category : Kaons
Languages : en
Pages : 14
Book Description
Publisher:
ISBN:
Category : Kaons
Languages : en
Pages : 14
Book Description