HEPData Search

Reverse order

Showing 10 of 18 results

A TABULATION OF PION - NUCLEON FORWARD AMPLITUDES UP TO 30-GeV/c

Carter, A.A. ; Carter, J.R. ;

RL-73-024, 2006.

Inspire Record 44589 DOI 10.17182/hepdata.75551

None

139 data tables

Table 1

No description provided.

Table 2

No description provided.

Table 3

No description provided.

More…

A resolution study of backward $\pi^- p$ reactions between 0.6 and 1.0 GeV/c

Debenham, Nicholas Charles ;

PhD Thesis, Imperial Coll., London, 1973.

Inspire Record 1499121 DOI 10.17182/hepdata.75616

None

181 data tables

Table 1

No description provided.

Table 2

No description provided.

Table 3

No description provided.

More…

Backward pi- p Reactions Between 0.6-GeV/c and 1-GeV/c

Debenham, N.C. ; Binnie, D.M. ; Camilleri, L. ; et al.

Phys.Rev.D 12 (1975) 2545-2556, 1975.

Inspire Record 104820 DOI 10.17182/hepdata.24845

Measurements are reported of the differential cross section for the reaction π−p→π−p,π0n,andηn at three angles close to 180° and for incident momenta in the range 0.6 to 1.0 GeV/c. The three measurements were made simultaneously at 1% intervals of beam momentum. The data on elastic scattering resolve a discrepancy between two earlier experiments. They also show clearly the effect of the opening of the ηn channel. The charge-exchange data show that I-spin bounds are not violated in the kinematic region covered. The ηn data can be adequately described with known s-channel resonances. No evidence for narrow N*'s is seen in any channel.

2 data tables

Table 1

No description provided.

Table 2

No description provided.

CUSP IN PI- P ELASTIC SCATTERING AT THE ETA THRESHOLD

Sarma, H.N.K. ; Binnie, D.M. ; Carr, J. ; et al.

Nucl.Phys.B 161 (1979) 1-13, 1979.

Inspire Record 147683 DOI 10.17182/hepdata.34612

We present results from a high momentum resolution measurement of the π − p elastic differential cross section near the η production threshold. By analysing the cusp discontinuity in the elastic cross section we deduce the non-spin-flip elastic amplitude and compare it with solutions from phase-shift analyses.

601 data tables

Table 1

No description provided.

Table 2

No description provided.

Table 3

No description provided.

More…

Coulomb-Nuclear Interference in pi+- p and K+- p Elastic Scattering Below 3-GeV: Measurements, Real Parts and K+- p Dispersion Relations

Baillon, P. ; Bricman, C. ; Ferro-Luzzi, M. ; et al.

Nucl.Phys.B 105 (1976) 365-430, 1976.

Inspire Record 101037 DOI 10.17182/hepdata.13243

The differential cross sections for π + p elastic scattering at0.6, 1.0, 1.5, 2.0, GeV/ c for π - p at 1.0, 1.5, 2.0 GeV/ c , for K - p at 1.2, 1.8, 2.6 GeV/ c and for K - p at 0.9, 1.2, 1.4, 1.6, 1.8, 2.6 GeV/ c have been measured with an overall accuracy ofthe order of 1 to 2% in an electronics experiment over the angular region corresponding to momentum transfer t between 0.0005 and 0.10 GeV 2 . Making use of the interference effects between the Coulomb and the nuclear interaction, we have determined the magnitude and sign of the real part of the scattering amplitude near t = 0. The K ± p real parts have been used in a dispersion relation to derive the value of the KNΛ coupling constant.

20 data tables

Table 1

'TABLE'. 'BIN'.

Table 2

'TABLE'. 'BIN'.

Table 3

'TABLE'. 'BIN'.

More…

Differential Cross-sections for $\pi^+ P$ and $\pi^- P$ Elastic Scattering From 378-{MeV}/c to 687-{MeV}/c

Sadler, M.E. ; Briscoe, W.J. ; Fitzgerald, D.H. ; et al.

Phys.Rev.D 35 (1987) 2718-2735, 1987.

Inspire Record 250023 DOI 10.17182/hepdata.23362

Differential cross sections have been measured for π+p and π−p elastic scattering at 378, 408, 427, 471, 509, 547, 586, 625, 657, and 687 MeV/c in the angular range -0.8<cosθc.m.<0.8. The scattered pion and recoil proton were detected in coincidence using scintillation-counter hodoscopes. A liquid-hydrogen target was used except for measurements at forward angles, in which a CH2 target was used. Statistical uncertainties in the data are typically less than 1%. Systematic uncertainties in acceptance and detection efficiency are estimated to be 1%. Absolute normalization uncertainties are 2–3 % for most of the data. The measurements are compared with previous data and with the results of recent partial-wave analyses. The data are fit with Legendre expansions from which total elastic cross sections are obtained.

23 data tables

Table 1

Normalisation uncertainty = 3.1 pct.

Table 2

Normalisation uncertainty = 4.1 pct.

Table 3

Normalisation uncertainty = 2.1 pct.

More…

Elastic Scattering of Negative Pions on Protons in the Energy Range 500-1000 MeV

Helland, Jerome A. ; Wood, Calvin D. ; Devlin, Thomas J. ; et al.

Phys.Rev. 134 (1964) B1079-B1086, 1964.

Inspire Record 46851 DOI 10.17182/hepdata.598

Differential cross sections for the elastic scattering of negative pi mesons on protons (π−−p→π−−p) were measured at the Berkeley Bevatron at five laboratory kinetic energies of the pion between 500 and 1000 MeV. The results were least-squares fitted with a power series in the cosine of the center-of-mass scattering angle, and total elastic cross sections for π−−p→π−−p were obtained by integrating under the fitted curves. The coefficients of the cosine series are shown plotted versus the incident pion laboratory kinetic energy. These curves display as a striking feature a large value of the coefficient of cos5θ* peaking in the vicinity of the 900-MeV resonance. This implies that a superposition of F52 and D52 partial waves is prominent in the scattering at this energy, since the coefficients for terms above cos5θ* are negligible. One possible explanation is that the F52 enhancement comes from an elastic resonance in the isotopic spin T=12 state, consistent with Regge-pole formalism, and the D52 partial-wave state may be enhanced by inelastic processes. At 600 MeV the values of the coefficients do not seem to demand the prominence of any single partial-wave state, although the results are compatible with an enhancement in the J=32 amplitude. A table listing quantum numbers plausibly associated with the various peaks and "shoulders" seen in the π±−p total cross-section curves is presented.

6 data tables

Table 1

No description provided.

Table 2

No description provided.

Table 3

No description provided.