A new event generator for the elastic scattering of charged leptons on protons

Gramolin, A. V.; Fadin, V. S.; Feldman, A.; Gerasimov, R. E.; Nikolenko, D. M.; Rachek, I. A.; Toporkov, D. K.

doi:10.1088/0954-3899/41/11/115001

Cited by 42 publications

(56 citation statements)

References 51 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…2): a vacuum polarization, the exchange of one extra virtual photon, and the emission of one bremsstrahlung photon. The estimate presented in [55] shows that the disregard of secondorder and higher order bremsstrahlung is quite legitimate in our case, since this leads to a relative error not greater than 4 × 10 −4 in determining the ratio of the cross sections σ(e + p) and σ(e − p). The same article gives a detailed account of the procedure used here to take into account radiative corrections.…”

Section: Inclusion Of Radiative Correctionsmentioning

confidence: 61%

“…In order to estimate this background, we developed a generator of events of pion electro-and photoproduction on protons, relying on the MAID2007 and 2-PION-MAID parametrizations [54]. A simulation of the elastic-scattering process accompanied by bremsstrahlung was performed with the aid of the ESEPP generator [55]. The Geant4 package [56] was used to simulate detector responses.…”

Section: Separation Of Elastic-scatteringmentioning

confidence: 99%

“…In order to take accurately into account all these factors, we developed a new generator of events of elastic e − p and e + p scattering [55] and performed a Monte Carlo simulation of the detector response to these events within the Geant4 medium [56] (see also Fig. 7).…”

Section: Inclusion Of Radiative Correctionsmentioning

confidence: 99%

See 2 more Smart Citations

Proton form factors and two-photon exchange in elastic electron-proton scattering

et al. 2015

View full text Add to dashboard Cite

Proton electromagnetic form factors are among the most important sources of information about the internal structure of the proton. Two different methods for measuring these form factors, the method proposed by Rosenbluth and the polarization-transfer method, yield contradictory results. It is assumed that this contradiction can be removed upon taking into account the hard part of the contribution of two-photon exchange to the cross section for elastic electron-proton scattering. This contribution can measured experimentally via a precision comparison of the cross sections for the elastic scattering of positrons and electrons on protons. Such a measurement, performed at the VEPP-3 storage ring in Novosibirsk at the beam energies of 1.6 and 1.0 GeV for positron (electron) scattering angles in the ranges of θ e = 15 • −25 • and 55 • −75 • in the first case and in the range of θ e = 65 • −105 • in the second case is described in the present article. Preliminary results of this experiment and their comparison with theoretical predictions are described.

show abstract

Section: Inclusion Of Radiative Correctionsmentioning

confidence: 61%

Section: Separation Of Elastic-scatteringmentioning

confidence: 99%

See 1 more Smart Citation

Proton form factors and two-photon exchange in elastic electron-proton scattering

et al. 2015

View full text Add to dashboard Cite

show abstract

“…One is based on the complete set of calculations in [14], which goes beyond the ultra-relativistic approximations (URA). The other one is ESEPP [15], whose first order bremsstrahlung is calculated without soft-photon approximation or URA. The study with these two event generators shows the systematical uncertainty due to the radiative corrections is less than 0.3%.…”

Section: Simulation Resultsmentioning

confidence: 99%

Proton Charge Radius (PRad) Experiment at Jefferson Lab

Peng

2016

EPJ Web of Conferences

View full text Add to dashboard Cite

Abstract. The puzzle of proton charge radius was recently raised by the measurement of muonic hydrogen Lamb shift at Paul Scherrer Institute (PSI), whose results were seven standard deviations smaller than the CODATA recommended value. To investigate this discrepancy, the PRad experiment was proposed and approved at Thomas Jefferson National Accelerator Facility (JLab). The experiment will extract the proton charge radius with a sub-percent accuracy by measuring the cross-sections of unpolarized electronproton elastic scattering in an unprecedented low Q 2 region 2 × 10 −4 GeV 2 /c 2 .

show abstract

“…to include these improvements in event generators [44,[48][49][50]. It is interesting to perform a systematic analysis of power corrections, particularly of relevance to very low Q 2 and/or high ∆E [51,52].…”

mentioning

confidence: 99%

Effective field theory for large logarithms in radiative corrections to electron proton scattering

Hill

2017

Phys. Rev. D

View full text Add to dashboard Cite

Radiative corrections to elastic electron-proton scattering are analyzed in effective field theory.A new factorization formula identifies all sources of large logarithms in the limit of large momentum transfer, Q 2 m 2 e . Explicit matching calculations are performed through two-loop order. A renormalization analysis in soft-collinear effective theory is performed to systematically compute and resum large logarithms. Implications for the extraction of charge radii and other observables from scattering data are discussed. The formalism may be applied to other lepton-nucleon scattering and e + e − annihilation processes.

show abstract

A new event generator for the elastic scattering of charged leptons on protons

Cited by 42 publications

References 51 publications

Proton form factors and two-photon exchange in elastic electron-proton scattering

Proton form factors and two-photon exchange in elastic electron-proton scattering

Proton Charge Radius (PRad) Experiment at Jefferson Lab

Effective field theory for large logarithms in radiative corrections to electron proton scattering

Contact Info

Product

Resources

About