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Measurements of Delta sigma-L (n p) between 500-MeV and 800-MeV

Beddo, M. ; Burleson, G. ; Faucett, J.A. ; et al.
Phys.Lett.B 258 (1991) 24-28, 1991.
Inspire Record 29058 DOI 10.17182/hepdata.51096

A measurement of Δσ L (np), the difference between neutron-proton total cross sections in pure longitudinal spin states, is described. Data were taken for five energies between 500 and 800 MeV, with statistical errors of ≈ 1.5 mb and an estimated normalization error of 6%. The data, combined with other results, show some evidence for an elastic I =0 spin-singlet resonance with mass ∼ 2213 MeV and width ∼ 74 MeV, or a coupled-triplet resonance with similar mass and width.

1 data table
Table 1

SIG(C=PARALLEL)-SIG(C=ANTIPARALLEL) means the difference in the total crosssection with initial parallel and antiparallel longitudinal spin states. The I0 means I=0, these values were found using interpolated Delta(sigma(pp)) data.


Measurement of the longitudinal spin dependent neutron - proton total cross-section difference Delta sigma-L (n p) between 500-MeV - 800-MeV

Beddo, M. ; Burleson, G. ; Faucett, J.A. ; et al.
Phys.Rev.D 50 (1994) 104-123, 1994.
Inspire Record 37179 DOI 10.17182/hepdata.22460

A measurement of ΔσL(np), the difference between neutron-proton total cross sections for pure longitudinal spin states, is described. Data were taken at LAMPF for five neutron beam kinetic energies: 484, 568, 634, 720, and 788 MeV. The statistical errors are in the range of 0.64–1.35 mb. Various sources of systematic effects were investigated and are described. Overall systematic errors are estimated to be on the order of 0.5 mb and include an estimate for the uncertainty in the neutron beam polarization. The ΔσL results are consistent with previous results from PSI and Saclay. These data, when combined with other results and fitted to a Breit-Wigner curve, are consistent with an elastic I=0 resonance with mass 2214±15 (stat) ±6 (syst) MeV and width 75±21±12 MeV. Because of a lack of ΔσT(np) data between 500 and 800 MeV, it is not possible to differentiate between a singlet or coupled-triplet partial wave being responsible.

2 data tables
Table 1

No description provided.

Table 2

The (I=0) part of SIG(NAME=CLL) after subtraction of the p p data, (I=1) part.


Neutron-Proton and Neutron-Deuteron Total Cross Sections from 14 to 27 GeV/c

Kriesler, Michael N. ; Jones, Lawrence W. ; Longo, Michael J. ; et al.
Phys.Rev.Lett. 20 (1968) 468-471, 1968.
Inspire Record 54461 DOI 10.17182/hepdata.21734

The first direct measurements of neutron-proton and neutron-deuteron total cross sections in the momentum range 14 to 27 GeV/c are presented. The np total cross section apparently becomes less than the pp total cross section in this momentum region. Our results show no evidence for a rapid vanishing of the Glauber screening correction as predicted by Abers et al. on the basis of Regge theory.

1 data table
Table 1

'1'. '2'.


Direct measurement of n-p and n-d total cross-sections from 700 mev/c to 2900 mev/c

Mischke, R.E. ; Devlin, T.J. ; Johnson, W. ; et al.
Phys.Rev.Lett. 25 (1970) 1724-1727, 1970.
Inspire Record 62826 DOI 10.17182/hepdata.21646

Neutron-proton and neutron-deuteron total cross sections have been measured directly at the Princeton-Pennsylvania Accelerator using time of flight to determine the incident neutron momentum. The results cover the region from 700 to 2900 MeVc with a typical accuracy of 0.8% for each of 26 momentum bins. The data are not consistent with the most precise previous measurements in the same momentum range.

1 data table
Table 1

No description provided.


Measurement of n p and n d total cross-sections from 0.7-GeV/c to 3.6-GeV/c

Devlin, T.J. ; Johnson, W. ; Norem, J. ; et al.
Phys.Rev.D 8 (1973) 136-155, 1973.
Inspire Record 81663 DOI 10.17182/hepdata.22079

We present direct measurements of the total cross section for neutrons on protons and deuterons in the momentum range 0.7 to 3.6 GeVc. Using these and other nucleon-nucleon total cross sections, we evaluate total cross sections in the pure isospin states.

4 data tables
Table 1

No description provided.

Table 2

No description provided.

Table 3

COMPUTED USING SIG(I=0) = 2*SIG(NP) - SIG(PP) FROM SIG(NP) AND INTERPOLATED PREVIOUSLY MEASURED PROTON-PROTON CROSS SECTIONS.

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Neutron Total Cross-Sections on Nuclei at Fermilab Energies

Ramana Murthy, P.V. ; Ayre, Cyril A. ; Gustafson, H.Richard ; et al.
Nucl.Phys.B 92 (1975) 269-308, 1975.
Inspire Record 2076 DOI 10.17182/hepdata.32056

We have measured total cross sections for neutrons on protons, deuteriom, beryllium, carbon, aluminium, iron, copper, cadmium, tungsten, lead, and uranium for momenta between 30 and 300 GeV/ c . The measurements were carried out in a small-angle neutral beam at Fermilab. Typical accuracy of the data is 0.5 to 1%. The cross sections are consistent with an A 0.77±0.01 dependence over the entire momentum range. The cross sections are compared with theoretical predictions. Agreement is found only if inelastic screening is included. Nuclear radii obtained from our data are in good agreement with previous determinations.

11 data tables
Table 1

No description provided.

Table 2

No description provided.

Table 3

No description provided.

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TOTAL CROSS-SECTION MEASUREMENT OF NEUTRONS ON PROTONS AND NUCLEI OVER THE ENERGY RANGE 28-GeV - 54-GeV

Babaev, A. ; Brachman, E. ; Eliseev, G. ; et al.
Phys.Lett.B 51 (1974) 501-504, 1974.
Inspire Record 80943 DOI 10.17182/hepdata.27923

The results of the total cross section measurements of neutrons on protons, deuterons and nuclei C, O, Al, Cu, Sn, Pb in the energy range of 28–54 GeV are reported.

3 data tables

Total cross-section for n-p and n-d scattering at 10 GeV/c neutron momentum

Engler, J. ; Horn, K. ; König, J. ; et al.
Phys.Lett.B 27 (1968) 599-601, 1968.
Inspire Record 1389110 DOI 10.17182/hepdata.752

The total neutron cross-sections were measured with high precision for hydrogen and deuterium. At an average neutron momentum of 10 GeV/c we obtained σ T (np)=39.5±0.5 mb and σ T (nd)=73.3±1.1 mb. These values are in excellent agreement with p-p and p-d total cross sections. No energy dependence was found for n-p cross section between 4 and 10 GeV/c.

3 data tables
Table 1

No description provided.

Table 2

No description provided.

Table 3

No description provided.


Neutron-Proton Total Cross-Sections from 40-GeV/c to 280-GeV/c

Longo, Michael J. ; Ayre, Cyril A. ; Gustafson, H.Richard ; et al.
Phys.Rev.Lett. 33 (1974) 725, 1974.
Inspire Record 89896 DOI 10.17182/hepdata.21237

We present results of measurements of the n−p total cross section between 30 and 280 GeV/c. The measurements were carried out with a neutron beam by using the standard transmission technique and a liquid-hydrogen target. A total-absorption calorimeter was used to determine the neutron energy. Our measurements, which have an accuracy of ∼1%, indicate a smooth rise of approximately 1.5 mb between 50 and 280 GeV/c. The combined n−p and p−p data above 20 GeV/c are well fitted by the expression σ=38.4+0.85|ln(s95)|1.47 mb.

1 data table
Table 1

MOST DATA TAKEN WITH 300 GEV/C INCIDENT PROTONS TO PRODUCE THE NEUTRON BEAM, WITH SOME ALSO USING 200 GEV/C PROTONS.


MEASUREMENT OF TOTAL CROSS-SECTIONS IN NEUTRINO INTERACTIONS WITH PROTON AND NUCLEI IN THE ENERGY RANGE 26-GeV - 54-GeV

Babaev, A. ; Brakhman, E. ; Galaktionov, Iouri ; et al.
Yad.Fiz. 20 (1974) 71-86, 1974.
Inspire Record 80946 DOI 10.17182/hepdata.19117

None

1 data table
Table 1

No description provided.