Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
The Pion Charge Form Factor Through Pion Electroproduction
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
The Pion Charge Form Factor Through Pion Electroproduction
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 274
Book Description
The goal of Jefferson Lab experiment E01-004 (F?-2) was the measurement of the longitudinal and transverse cross sections via pion electroproduction from hydrogen and deuterium for the purpose of extracting the charged pion form factor using pole dominance. The data were taken at two values of Q2 (1.60 and 2.45 GeV/c)2. In order to attain full coverage in ??, charged pions were detected in parallel kinematics (along the direction of momentum transfer, q), and at ±3 degrees off the direction of momentum transfer. For each Q2 data were taken for two values of the virtual photon polarization, ϵ, respectively. All data were taken at a fixed center of mass energy, W=2.22 GeV. The longitudinal and transverse pieces of the cross section were separated using the Rosenbluth separation method.
Publisher:
ISBN:
Category :
Languages : en
Pages : 274
Book Description
The goal of Jefferson Lab experiment E01-004 (F?-2) was the measurement of the longitudinal and transverse cross sections via pion electroproduction from hydrogen and deuterium for the purpose of extracting the charged pion form factor using pole dominance. The data were taken at two values of Q2 (1.60 and 2.45 GeV/c)2. In order to attain full coverage in ??, charged pions were detected in parallel kinematics (along the direction of momentum transfer, q), and at ±3 degrees off the direction of momentum transfer. For each Q2 data were taken for two values of the virtual photon polarization, ϵ, respectively. All data were taken at a fixed center of mass energy, W=2.22 GeV. The longitudinal and transverse pieces of the cross section were separated using the Rosenbluth separation method.
The Pion Charge Form Factor Via Pion Electroproduction on the Proton
Author: Jochen Volmer
Publisher:
ISBN:
Category :
Languages : en
Pages : 135
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 135
Book Description
Pion-electroproduction
Author: Edoardo Amaldi
Publisher: Springer
ISBN:
Category : Form factor (Nuclear physics).
Languages : en
Pages : 184
Book Description
Publisher: Springer
ISBN:
Category : Form factor (Nuclear physics).
Languages : en
Pages : 184
Book Description
Measurement of the Pion Form Factor by Coincidence Electroproduction
Author: William Wesley Ash
Publisher:
ISBN:
Category : Mesons
Languages : en
Pages : 308
Book Description
Publisher:
ISBN:
Category : Mesons
Languages : en
Pages : 308
Book Description
Determination of the Charged Pion Form Factor at Q2
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 192001
Book Description
The H(e, e(prime)pi+)n cross section was measured at four-momentum transfers of Q2=1.60 and 2.45 GeV2 at an invariant mass of the photon nucleon system of W=2.22 GeV. The charged pion form factor (F{sub pi}) was extracted from the data by comparing the separated longitudinal pion electroproduction cross section to a Regge model prediction in which F{sub pi} is a free parameter. The results indicate that the pion form factor deviates from the charge-radius constrained monopole form at these values of Q2 by one sigma, but is still far from its perturbative Quantum Chromo-Dynamics prediction.
Publisher:
ISBN:
Category :
Languages : en
Pages : 192001
Book Description
The H(e, e(prime)pi+)n cross section was measured at four-momentum transfers of Q2=1.60 and 2.45 GeV2 at an invariant mass of the photon nucleon system of W=2.22 GeV. The charged pion form factor (F{sub pi}) was extracted from the data by comparing the separated longitudinal pion electroproduction cross section to a Regge model prediction in which F{sub pi} is a free parameter. The results indicate that the pion form factor deviates from the charge-radius constrained monopole form at these values of Q2 by one sigma, but is still far from its perturbative Quantum Chromo-Dynamics prediction.
Charged Pion Form Factor Between $Q^2$
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 45203
Book Description
DOI: http://dx.doi.org/10.1103/PhysRevC.78.045203 The charged pion form factor, Fpi(Q2), is an important quantity that can be used to advance our knowledge of hadronic structure. However, the extraction of Fpi from data requires a model of the 1H(e, e'pi+)n reaction and thus is inherently model dependent. Therefore, a detailed description of the extraction of the charged pion form factor from electroproduction data obtained recently at Jefferson Lab is presented, with particular focus given to the dominant uncertainties in this procedure. Results for Fpi are presented for Q2=0.60-2.45 GeV2. Above Q2=1.5 GeV2, the Fpi values are systematically below the monopole parametrization that describes the low Q2 data used to determine the pion charge radius. The pion form factor can be calculated in a wide variety of theoretical approaches, and the experimental results are compared to a number of calculations. This comparison is helpful in understanding the role of soft versus hard c.
Publisher:
ISBN:
Category :
Languages : en
Pages : 45203
Book Description
DOI: http://dx.doi.org/10.1103/PhysRevC.78.045203 The charged pion form factor, Fpi(Q2), is an important quantity that can be used to advance our knowledge of hadronic structure. However, the extraction of Fpi from data requires a model of the 1H(e, e'pi+)n reaction and thus is inherently model dependent. Therefore, a detailed description of the extraction of the charged pion form factor from electroproduction data obtained recently at Jefferson Lab is presented, with particular focus given to the dominant uncertainties in this procedure. Results for Fpi are presented for Q2=0.60-2.45 GeV2. Above Q2=1.5 GeV2, the Fpi values are systematically below the monopole parametrization that describes the low Q2 data used to determine the pion charge radius. The pion form factor can be calculated in a wide variety of theoretical approaches, and the experimental results are compared to a number of calculations. This comparison is helpful in understanding the role of soft versus hard c.
Threshold Photo and Electroproduction of Pions from Nuclei
Author: Edward T. Dressler
Publisher:
ISBN:
Category : Coupling constants
Languages : en
Pages : 44
Book Description
Publisher:
ISBN:
Category : Coupling constants
Languages : en
Pages : 44
Book Description
A Proposal for Determining the Electromagnetic Form Factor of the Pion
Author: William Robert Frazer
Publisher:
ISBN:
Category : Form factor (Nuclear physics)
Languages : en
Pages : 70
Book Description
Publisher:
ISBN:
Category : Form factor (Nuclear physics)
Languages : en
Pages : 70
Book Description
Can the Pion Form Factor be Determined from Pion Electroproduction?
Author: B. H. Kellett
Publisher:
ISBN:
Category :
Languages : en
Pages : 27
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 27
Book Description