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Measurement Of Proton Electromagnetic Form Factors In The Time Like Region Using Initial State Radiation At Besiii
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Book Synopsis Measurement of Proton Electromagnetic Form Factors in the Time-like Region Using Initial State Radiation at BESIII by : Medina Ablikim
Download or read book Measurement of Proton Electromagnetic Form Factors in the Time-like Region Using Initial State Radiation at BESIII written by Medina Ablikim and published by . This book was released on 2021 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The electromagnetic process is studied with the initial-state-radiation technique using 7.5 fb-1 of data collected by the BESIII experiment at seven energy points from 3.773 to 4.600 GeV. The Born cross section and the effective form factor of the proton are measured from the production threshold to 3.0 GeV/ using the invariant-mass spectrum. The ratio of electric and magnetic form factors of the proton is determined from the analysis of the proton-helicity angular distribution.
Book Synopsis Measurement of Proton Electromagnetic Form Factors Using the Initial-state-radiation Process E+e- Ppgamma at BESIII by : Dexu Lin
Download or read book Measurement of Proton Electromagnetic Form Factors Using the Initial-state-radiation Process E+e- Ppgamma at BESIII written by Dexu Lin and published by . This book was released on 2017 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Measurement of Proton Electromagnetic Form Factors Via the Spin Transfer Reaction 1H(e,eʹp) by : Brian Dennis Milbrath
Download or read book Measurement of Proton Electromagnetic Form Factors Via the Spin Transfer Reaction 1H(e,eʹp) written by Brian Dennis Milbrath and published by . This book was released on 1996 with total page 358 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Measurement of Proton Electromagnetic Form Factors Via the Spin Transfer Reaction by :
Download or read book Measurement of Proton Electromagnetic Form Factors Via the Spin Transfer Reaction written by and published by . This book was released on 1996 with total page 174 pages. Available in PDF, EPUB and Kindle. Book excerpt: A measurement of GE(P)/GM(P) at squared Q values of 0.38 and 0.50 GeV(2) was performed at Bates Linear Accelerator Center using a focal plane polarimeter (FPP) to measure the recoil proton polarization following elastic scattering of polarized electrons on a hydrogen target. These are the first measurements of all three polarization components and determination of the proton's form factors via spin transfer rather than Rosenbluth separation. The ratio GE(P)/GM(P) is obtained in a nearly systematic free manner. The measured polarizations are consistent with the Plane Wave Impulse Approximation (PWIA). This is the first experiment to use the newly built BATES-FPP and that device is described in detail.
Book Synopsis Measurement of the Proton Form Factors Ratio GE/GM to Q2 by :
Download or read book Measurement of the Proton Form Factors Ratio GE/GM to Q2 written by and published by . This book was released on 2002 with total page 214 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this thesis, we present the results of the experiment E99-007, which measured the ratio of the electric to magnetic form factors of the proton to the four momentum transfer square Q2 = 5.6 GeV2, by recoil polarimetry. Data were taken in 2000 at the Thomas Jefferson National Accelerator Facility in Virginia, USA. A 4.6 GeV polarized electron beam was scattered off a cryogenic hydrogen target. The polarization of the recoil proton was measured in the Focal Plane Polarimeter, located after one of the two High Resolution Spectrometers in the hall. The ratio of the transverse to longitudinal components of the recoil proton polarization is proportional to the ratio of the form factors. Elastic events were selected by detecting the scattered electron in a large acceptance lead-glass calorimeter. The main result of this experiment is the linear decrease of the form factor ratio with increasing Q2, corresponding to different spatial distributions of the electric charge and the magnetization. Numerous theoretical calculations show that relativistic effects, such as mixing of spin states due to Lorentz boosts, are important to account for the observed data in this critical intermediate kinematic region.
Book Synopsis Feasibility Studies for the Measurement of the Time-like Electromagnetic Proton Form Factors at the PANDA Experiment by : Iris Zimmermann
Download or read book Feasibility Studies for the Measurement of the Time-like Electromagnetic Proton Form Factors at the PANDA Experiment written by Iris Zimmermann and published by . This book was released on 2018 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Recoil Polarization Measurements of the Proton Electromagnetic Form Factor Ratio to High Momentum Transfer by :
Download or read book Recoil Polarization Measurements of the Proton Electromagnetic Form Factor Ratio to High Momentum Transfer written by and published by . This book was released on 2010 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The electromagnetic form factors of the nucleon characterize the effect of its internal structure on its response to an electromagnetic probe as studied in elastic electronnucleon scattering. These form factors are functions of the squared four-momentum transfer Q2 between the electron and the proton. The two main classes of observables of this reaction are the scattering cross section and polarization asymmetries, both of which are sensitive to the form factors in different ways. When considering large f momentum transfers, double-polarization observables offer superior sensitivity to the electric form factor. This thesis reports the results of a new measurement of the ratio of the electric and magnetic form factors of the proton at high momentum transfer using the recoil polarization technique. A polarized electron beam was scattered from a liquid hydrogen target, transferring polarization to the recoiling protons. These protons were detected in a magnetic spectrometer which was used to reconstruct their kinematics, including their scattering angles and momenta, and the position of the interaction vertex. A proton polarimeter measured the polarization of the recoiling protons by measuring the azimuthal asymmetry in the angular distribution of protons scattered in CH2 analyzers. The scattered electron was detected in a large acceptance electromagnetic calorimeter in order to suppress inelastic backgrounds. The measured ratio of the transverse and longitudinal polarization components of the scattered proton is directly proportional to the ratio of form factors GpE=GpM. The measurements reported in this thesis took place at Q2 =5.2, 6.7, and 8.5 GeV2, and represent the most accurate measurements of GpE in this Q2 region to date.
Book Synopsis Measurement of Proton and Neutron Electromagnetic Form Factors at Squared Four Momentum Transfers Up to 3 (GeV/c)2 by : W. Bartel
Download or read book Measurement of Proton and Neutron Electromagnetic Form Factors at Squared Four Momentum Transfers Up to 3 (GeV/c)2 written by W. Bartel and published by . This book was released on 1973 with total page 46 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Recoil Polarization Measurements of the Proton Electromagnetic Form Factor Ratio to High Momentum Transfer by : Andrew James Ruehe Puckett
Download or read book Recoil Polarization Measurements of the Proton Electromagnetic Form Factor Ratio to High Momentum Transfer written by Andrew James Ruehe Puckett and published by . This book was released on 2010 with total page 313 pages. Available in PDF, EPUB and Kindle. Book excerpt: The electromagnetic form factors of the nucleon characterize the effect of its internal structure on its response to an electromagnetic probe as studied in elastic electronnucleon scattering. These form factors are functions of the squared four-momentum transfer Q2 between the electron and the proton. The two main classes of observables of this reaction are the scattering cross section and polarization asymmetries, both of which are sensitive to the form factors in different ways. When considering large momentum transfers, double-polarization observables offer superior sensitivity to the electric form factor. This thesis reports the results of a new measurement of the ratio of the electric and magnetic form factors of the proton at high momentum transfer using the recoil polarization technique. A polarized electron beam was scattered from a liquid hydrogen target, transferring polarization to the recoiling protons. These protons were detected in a magnetic spectrometer which was used to reconstruct their kinematics, including their scattering angles and momenta, and the position of the interaction vertex. A proton polarimeter measured the polarization of the recoiling protons by measuring the azimuthal asymmetry in the angular distribution of protons scattered in CH2 analyzers. The scattered electron was detected in a large-acceptance electromagnetic calorimeter in order to suppress inelastic backgrounds. The measured ratio of the transverse and longitudinal polarization components of the scattered proton is directly proportional to the ratio of form factors GE/Gpm. The measurements reported in this thesis took place at Q2 =5.2, 6.7, and 8.5 GeV 2, and represent the most accurate measurements of G' in this Q2 region to date.
Book Synopsis Proton Electromagnetic Time-like Form Factors Updated at Threshold by : B. L. Druzhinin
Download or read book Proton Electromagnetic Time-like Form Factors Updated at Threshold written by B. L. Druzhinin and published by . This book was released on 1997 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Measurement of the Electromagnetic Form Factors of the Proton Via Elastic Scattering in the Q2 Range from 0.5 to 2 (GeV/c)2 by : Julian Müller
Download or read book Measurement of the Electromagnetic Form Factors of the Proton Via Elastic Scattering in the Q2 Range from 0.5 to 2 (GeV/c)2 written by Julian Müller and published by . This book was released on 2023 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Feasibility Studies of Time-like Proton Electromagnetic Form Factors at $\overline{\rm P}$ANDA at FAIR. by :
Download or read book Feasibility Studies of Time-like Proton Electromagnetic Form Factors at $\overline{\rm P}$ANDA at FAIR. written by and published by . This book was released on 2016 with total page 23 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis New Precision Limit on the Strange Vector Form Factors of the Proton by :
Download or read book New Precision Limit on the Strange Vector Form Factors of the Proton written by and published by . This book was released on 2012 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The parity-violating cross-section asymmetry in the elastic scattering of polarized electrons from unpolarized protons has been measured at a four-momentum transfer squared Q2 = 0.624 GeV2 and beam energy Eb = 3.48 GeV to be APV = -23.80 " 0.78 (stat) " 0.36 (syst) parts per million. This result is consistent with zero contribution of strange quarks to the combination of electric and magnetic form factors GEs + 0.517 GMs = 0.003 " 0.010 (stat) " 0.004 (syst) " 0.009 (ff), where the third error is due to the limits of precision on the electromagnetic form factors and radiative corrections. With this measurement, the world data on strange contributions to nucleon form factors are seen to be consistent with zero and not more than a few percent of the proton form factors.
Book Synopsis The Anomalous Magnetic Moment of the Muon by : Fred Jegerlehner
Download or read book The Anomalous Magnetic Moment of the Muon written by Fred Jegerlehner and published by Springer Science & Business Media. This book was released on 2008 with total page 433 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book reviews the present state of knowledge of the anomalous magnetic moment a=(g-2)/2 of the muon. The muon anomalous magnetic moment is one of the most precisely measured quantities in elementary particle physics and provides one of the most stringent tests of relativistic quantum field theory as a fundamental theoretical framework. It allows for an extremely precise check of the standard model of elementary particles and of its limitations.
Book Synopsis Precision Rosenbluth Measurement of the Proton Elastic Electromagnetic Form Factors and Their Ratio at Q2 by :
Download or read book Precision Rosenbluth Measurement of the Proton Elastic Electromagnetic Form Factors and Their Ratio at Q2 written by and published by . This book was released on 2005 with total page 280 pages. Available in PDF, EPUB and Kindle. Book excerpt: Due to the inconsistency in the results of the mupGEp/GMp ratio of the proton, as extracted from the Rosenbluth and recoil polarization techniques, high precision measurements of the e-p elastic scattering cross sections were made at Q2 = 2.64, 3.20, and 4.10 GeV2. Protons were detected, in contrast to previous measurements where the scattered electrons were detected, which dramatically decreased-dependent systematic uncertainties and corrections. A single spectrometer measured the scattered protons of interest while simultaneous measurements at Q2 = 0.5 GeV2 were carried out using another spectrometer which served as a luminosity monitor in order to remove any uncertainties due to beam charge and target density fluctuations. The absolute uncertainty in the measured cross sections is 3̃% for both spectrometers and with relative uncertainties, random and slope, below 1% for the higher Q2 protons, and below 1% random and 6% slope for the monitor spectrometer. The extracted electric and magnetic form factors were determined to 4%-7% for GEp and 1.5% for GMp. The ratio mupGEp/GMp was determined to 4%-7% and showed mupGEp/GMp ̃1.0. The results of this work are in agreement with the previous Rosenbluth data and inconsistent with high-Q2 recoil polarization results, implying a systematic difference between the two techniques.
Book Synopsis Precision Rosenbluth Measurement of the Proton Elastic Electromagnetic Form Factors and Their Ratio at Q^2 by :
Download or read book Precision Rosenbluth Measurement of the Proton Elastic Electromagnetic Form Factors and Their Ratio at Q^2 written by and published by . This book was released on 2005 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Due to the inconsistency in the results of the mupGEp/GMp ratio of the proton, as extracted from the Rosenbluth and recoil polarization techniques, high precision measurements of the e-p elastic scattering cross sections were made at Q2 = 2.64, 3.20, and 4.10 GeV2. Protons were detected, in contrast to previous measurements where the scattered electrons were detected, which dramatically decreased-dependent systematic uncertainties and corrections. A single spectrometer measured the scattered protons of interest while simultaneous measurements at Q2 = 0.5 GeV2 were carried out using another spectrometer which served as a luminosity monitor in order to remove any uncertainties due to beam charge and target density fluctuations. The absolute uncertainty in the measured cross sections is (almost equal to)3% for both spectrometers and with relative uncertainties, random and slope, below 1% for the higher Q2 protons, and below 1% random and 6% slope for the monitor spectrometer. The extracted electric and magnetic form factors were determined to 4%-7% for GEp and 1.5% for GMp. The ratio mupGEp/GMp was determined to 4%-7% and showed mupGEp/GMp (almost equal to) 1.0. The results of this work are in agreement with the previous Rosenbluth data and inconsistent with high-Q2 recoil polarization results, implying a systematic difference between the two techniques.
Book Synopsis Single Pi [superscript O] Electroproduction Off the Proton in the Resonance Region by : Nikolay Markov
Download or read book Single Pi [superscript O] Electroproduction Off the Proton in the Resonance Region written by Nikolay Markov and published by . This book was released on 2012 with total page 366 pages. Available in PDF, EPUB and Kindle. Book excerpt:
![Download Single Pi [superscript O] Electroproduction Off the Proton in the Resonance Region PDF Online Free](https://books.google.com/books/content/images/frontcover/sYOuMwEACAAJ?fife=w200-h370)
