Majka, R.
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Measurements of electron proton elastic cross sections for 0.4-(GeV/c)**2 < Q**2 < 5.5-(GeV/c)**2.

The E94110 collaboration Christy, M.E. ; Ahmidouch, A. ; Armstrong, C.S. ; et al.
Phys.Rev.C 70 (2004) 015206, 2004.
Inspire Record 643262 DOI 10.17182/hepdata.31763

We report on precision measurements of the elastic cross section for electron-proton scattering performed in Hall C at Jefferson Lab. The measurements were made at 28 unique kinematic settings covering a range in momentum transfer of 0.4 $<$ $Q^2$ $<$ 5.5 $(\rm GeV/c)^2$. These measurements represent a significant contribution to the world's cross section data set in the $Q^2$ range where a large discrepancy currently exists between the ratio of electric to magnetic proton form factors extracted from previous cross section measurements and that recently measured via polarization transfer in Hall A at Jefferson Lab.

7 data tables match query
Table 1

Measured values of the electron-proton elastic cross section for beam energy 1.148 GeV.

Table 2

Measured values of the electron-proton elastic cross section for beam energy 1.882 GeV.

Table 3

Measured values of the electron-proton elastic cross section for beam energy 2.235 GeV.

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A MEASUREMENT OF THE K0(L) p ELASTIC CROSS-SECTION FOR 3 less than or equal to p less than or equal to 13-GeV/c AND .1 less than or equal to |t| less than or equal to 1.3-GeV**2

Cittolin, S. ; Gasparini, F. ; Limentani, S. ; et al.
Nucl.Phys.B 157 (1979) 197-211, 1979.
Inspire Record 7663 DOI 10.17182/hepdata.34662

The cross section for the K L 0 p elastic scattering has been measured for the first time. The incident momentum and momentum transfer ranges are 3 ⩽ p ⩽ 13 GeV/ c , 0.1 ⩽ | t | ⩽ 1.3 GeV 2 . The results are compared to those of other experiments related to ours by isotopic spin conservation, finding agreement with some and discrepancies with others. The differential cross sections have been parametrized in the form A e bt . The coefficients show little or no dependence on energy, with A ≅ 9.8 mb · GeV −2 and b ≅ 4.7 GeV −2 . The effective linear trajectory has been determined and gives α 0 = 0.95 ± 0.15, α ′ = −0.35 ± 0.48 GeV −2 , in good agreement with dominance by pomeron exchange.

3 data tables match query
Table 1

CROSS SECTIONS DEDUCED FROM THE 46 PCT OF EVENTS WHICH YIELD UNIQUE SOLUTIONS.

Table 2

<RAW> CROSS SECTIONS DEDUCED FROM A STATISTICAL TREATMENT OF ALL EVENTS.

Table 3

<SMOOTHED> CROSS SECTIONS DEDUCED FROM A STATISTICAL TREATMENT OF ALL EVENTS.


Compton scattering by the proton through Theta(CMS) = 75-degrees and 90-degrees in the Delta resonance region

Hünger, A ; Peise, J ; Robbiano, A ; et al.
Nucl.Phys.A 620 (1997) 385-416, 1997.
Inspire Record 458618 DOI 10.17182/hepdata.36349

Differential cross sections for Compton scattering by the proton have been measured in the energy interval between 200 and 500 MeV at scattering angles of θ cms = 75° and θ cms = 90° using the CATS, the CATS/TRAJAN, and the COPP setups with the Glasgow Tagger at MAMI (Mainz). The data are compared with predictions from dispersion theory using photo-meson amplitudes from the recent VPI solution SM95. The experiment and the theoretical procedure are described in detail. It is found that the experiment and predictions are in agreement as far as the energy dependence of the differential cross sections in the Δ-range is concerned. However, there is evidence that a scaling down of the resonance part of the M 1+ 3 2 photo-meson amplitude by (2.8 ± 0.9)% is required in comparison with the VPI analysis. The deduced value of the M 1+ 3 2 - photoproduction amplitude at the resonance energy of 320 MeV is: |M 1+ 3 2 | = (39.6 ± 0.4) × 10 −3 m π + −1 .

2 data tables match query
Table 1

No description provided.

Table 2

No description provided.


Measurement of differential cross-sections for muon-neutrino electron scattering

The CHARM-II collaboration Vilain, P. ; Wilquet, G. ; Beyer, R. ; et al.
Phys.Lett.B 302 (1993) 351-355, 1993.
Inspire Record 354904 DOI 10.17182/hepdata.16131

We report on a study of the differential cross section d σ /d y for the processes of elastic ν μ - and ν μ - electron scattering. The data on which this analysis is based were recorded between 1987 and 1990 with the CHARM II detector in the wide band neutrino beam at the CERN-SPS. For the first time the shapes of these y -distributions have been determined in a model-independent way. A fit to the data yields for the squares of the neutral coupling constants the ratio g R 2 / g L 2 =0.60 ± 0.19 (stat.) ± 0.09 (syst.).

3 data tables match query
Table 1

Cross sections in arbitrary units.

Table 2

Cross sections in arbitrary units.

Table 3

Value of SIN2TW obtained from data.


Measurements of Transverse Quasielastic Electron Scattering From the Deuteron at High Momentum Transfers

Arnold, R.G. ; Benton, D. ; Bosted, Peter E. ; et al.
Phys.Rev.Lett. 61 (1988) 806, 1988.
Inspire Record 261496 DOI 10.17182/hepdata.20075

Cross sections for 180° inelastic electron scattering from deuterium were measured from breakup threshold to beyond the quasielastic peak for incident-beam energies of 0.843, 1.020, 1.189, and 1.281 GeV, corresponding to 0.75≤Q2≤2.57 (GeV/c)2. The data are in reasonable agreement with nonrelativistic models that include final-state interactions and meson-exchange currents. The scaling function F(y) for these data is generally in agreement with F(y) for forward-angle data at the same Q2. Values of GMn determined from the data are in good agreement with results from previous experiments.

4 data tables match query
Table 1

Axis error includes +- 0.0/0.0 contribution (3.9 TO 12.0////).

Table 2

Axis error includes +- 0.0/0.0 contribution (3.9 TO 12.0////).

Table 3

Axis error includes +- 0.0/0.0 contribution (3.9 TO 12.0////).

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MEASUREMENT OF THE REAL TO IMAGINARY RATIO OF THE ANTI-P P FORWARD SCATTERING AMPLITUDES

Ashford, V. ; Sainio, M.E. ; Sakitt, M. ; et al.
Phys.Rev.Lett. 54 (1985) 518-521, 1985.
Inspire Record 216074 DOI 10.17182/hepdata.20329

We have measured the ratio of the real to the imaginary parts of the p¯p forward-scattering amplitude in the incident-momentum range 360 to 650 MeV/c. These results are in good agreement with predictions of the Paris nucleon-antinucleon potential model which include spin-flip effects.

3 data tables match query
Table 2

RESULTS OF FITS TO THE FORWARD-SCATTERING DIFFERENTIAL CROSS SECTIONS ASSUMING THE RATIO OF THE SPIN-FLIP TO NON-SPIN-FLIP PARTS OF THE FORWARD AMPLITUDE IS ZERO.

Table 3

RESULTS OF FITS TO THE FORWARD-SCATTERING DIFFERENTIAL CROSS SECTIONS ASSUMING THE RATIO OF THE SPIN-FLIP TO NON-SPIN-FLIP PARTS OF THE FORWARD AMPLITUDE IS PARAMATERISED AS 0.3698-0.1384*PLAB(IN GEV).


Measurements of the proton elastic form-factors for 1-GeV/c**2 <= Q**2 <= 3-GeV/C**2 at SLAC

Walker, R.C. ; Filippone, B. ; Jourdan, J. ; et al.
Phys.Rev.D 49 (1994) 5671-5689, 1994.
Inspire Record 360764 DOI 10.17182/hepdata.22469

We report measurements of the proton form factors GEp and GMp extracted from elastic scattering in the range 1≤Q2≤3 (GeV/c)2 with total uncertainties < 15% in GEp and < 3% in GMp. Comparisons are made to theoretical models, including those based on perturbative QCD, vector-meson dominance, QCD sum rules, and diquark constituents in the proton. The results for GEp are somewhat larger than indicated by most theoretical parametrizations, and the ratios of the Pauli and Dirac form factors Q2(F2pF1p) are lower in value and demonstrate a weaker Q2 dependence than those predictions. A global extraction of the elastic form factors from several experiments in the range 0.1 0.1

6 data tables match query
Table 1

Point-to-point systematic uncertainty is 0.5%, overall normailzation uncertainty is 1.9%.

Table 2

Point-to-point systematic uncertainty is 0.5%, overall normailzation uncertainty is 1.9%.

Table 3

Point-to-point systematic uncertainty is 0.5%, overall normailzation uncertainty is 1.9%.

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ALPHA NUCLEAR DIFFERENTIAL CROSS-SECTIONS AT 4.45-GeV/c PER NUCLEON

Ableev, V.G. ; Bodyagin, V.A. ; Vorobev, G.G. ; et al.
Acta Phys.Polon.B 16 (1985) 913-929, 1985.
Inspire Record 223292 DOI 10.17182/hepdata.51634

The absolute differential cross sections of 17.9 GeV/$c$ $\alpha$-particles scattering on nuclear targets have been measured over a four momentum transfer range of $0.009

2 data tables match query
Table 1

No description provided.

Table 2

No description provided.


LOW-ENERGY ANTI-PROTON NUCLEAR ABSORPTION CROSS-SECTIONS

Ashford, V. ; Sainio, M.E. ; Sakitt, M. ; et al.
Phys.Rev.C 31 (1985) 663-665, 1985.
Inspire Record 215612 DOI 10.17182/hepdata.50305

We have studied the absorption cross section of antiprotons on Al, Cu, and Pb for T=131.6 and 193.6 MeV. These results are compared with predictions of an optical model fitted to antiproton elastic scattering data on these nuclei and are in agreement with these predictions. The cross sections have an exponential dependence on the mass number A with an exponent of approximately 0.61.

1 data table match query
Table 1

No description provided.


A Luminosity Independent Measurement of the $\bar{p} p$ Total Cross-section at $\sqrt{s}=1$.8-tev

The E-710 collaboration Amos, Norman A. ; Avila, C. ; Baker, W.F. ; et al.
Phys.Lett.B 243 (1990) 158-164, 1990.
Inspire Record 27474 DOI 10.17182/hepdata.29696

We report a measurement of the p p total cross section at √ s =1.8 TeV using a luminosity-independent method. Our result is σ T =72.1±3.3 mb ; we also derive the total elastic cross section σ el =16.6±1.6 mb. A value is obtained for the total single diffraction cross section of 11.7±2.3 mb.

2 data tables match query
Table 3

No description provided.

Table 4

No description provided.