Alston-Garnjost, M.
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Measurement of the analyzing power in anti-p p elastic scattering at 439-MeV/c and 544 MeV/c

Kunne, F. ; Bertini, R. ; Costa, M. ; et al.
Phys.Lett.B 261 (1991) 188-190, 1991.
Inspire Record 314564 DOI 10.17182/hepdata.29399

The angular distributions of the analyzing power A y and of the differential cross section d σ/ d Ω in p p elastic scattering have been measured at 439 and 544 MeV/c. The results of A y are compared with various theoretical models.

4 data tables
Table 1

Data requested from authors.

Table 2

Legendre fit polynomials.

Table 3

Normalized Legendre fit polynomials.

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Parity violation in proton proton scattering at 13.6-MeV

Eversheim, P.D. ; Schmitt, W. ; Kuhn, S.E. ; et al.
Phys.Lett.B 256 (1991) 11-14, 1991.
Inspire Record 318678 DOI 10.17182/hepdata.29488

Parity nonconservation in proton-proton scattering has been studied by measuring the angle-integrated longitudinal analyzing power A z . We found A z (13.6 MeV)=(−1.5±0.5)×10 −7 . The error includes uncertainties due to statistics and corrections, as well as upper limits on systematic effects. The experimental result is discussed with respect to recent theoretical calculations.

1 data table
Table 1

No description provided.


Full Angular Distribution of the Analyzing Power in $\bar{p} p$ Elastic Scattering at 697-{MeV}/$c$

Bertini, R. ; Costa, M. ; Perrot, F. ; et al.
Phys.Lett.B 228 (1989) 531-535, 1989.
Inspire Record 280163 DOI 10.17182/hepdata.29779

Full angular distributions of the differential cross-section dσ/dμ and of the analysing power A y in p p elastic scattering have been measured at 697 MeV/ c . The results of A y are compared with the predictions of various theoretical models.

3 data tables
Table 1

No description provided.

Table 2

No description provided.

Table 3

Legendre Polynomials from fit to angular distribution (LEG(L=0)=3.59 +- 0.02).


Anti-proton - Proton Elastic Cross-sections in the Momentum Range Between 180-{MeV}/$c$ and 600-{MeV}/$c$

Bruckner, W. ; Dobbeling, H. ; Guttner, F. ; et al.
Phys.Lett.B 166 (1986) 113-118, 1986.
Inspire Record 217928 DOI 10.17182/hepdata.30308

Differential cross sections for p̄p elastic scattering have been measured in the full angular range for the p̄ momenta between 180 and 600 MeV/ c . It is found that s- and p-wave scattering is dominant below 300 MeV/ c . The s-wave component in the total cross section is 40–60% below 300 MeV/ c , in contrast to the NN scattering where it is about 90%. The s-, p- and d-wave scattering amplitudes are derived.

3 data tables
Table 1

No description provided.

Table 2

No description provided.

Table 3

No description provided.


Real to Imaginary Ratio of the $\bar{p} p$ Forward Elastic Scattering Amplitude in the Momentum Range Between 180-{MeV}/$c$ and 590-{MeV}/$c$

Bruckner, W. ; Dobbeling, H. ; Guttner, F. ; et al.
Phys.Lett.B 158 (1985) 180-185, 1985.
Inspire Record 213992 DOI 10.17182/hepdata.30392

The real-to-imaginary ratio of the p p forward elastic scattering amplitude has been measured at the LEAR facility of CERN by the Coulomb-nuclear interference method at seven beam momenta between 181 and 590 MeV/ c . The ratio is positive at 590 MeV/ c , becomes negative below 500 MeV/ c , reaches a minimum at 260 MeV/ c and then crosses zero again at about 230 MeV/ c .

3 data tables
Table 1

No description provided.

Table 2

No description provided.

Table 3

No description provided.


Measurement of the Real to Imaginary Ratio of the $\bar{P} P$ Forward Amplitude at Beam Momenta Between 400-{GeV}/c and 730-{MeV}/c

Iwasaki, H. ; Aihara, H. ; Chiba, J. ; et al.
Phys.Lett.B 103 (1981) 247-250, 1981.
Inspire Record 170359 DOI 10.17182/hepdata.31184

Differential cross sections of p p forward elastic scattering were measured between 400 and 730 MeV/ c , and the real-to-imaginary ratio, ϱ, of the forward amplitude was deduced. We found that ρ increases from ∼ 0.1 to ∼ 0.4 in this momentum range. A dispersion-relation analysis shows the existence of a pole-like structure in the real part of the p p amplitude near threshold.

1 data table
Table 1

REAL/IMAG RATIO OF FORWARD AMPLITUDE DETERMINED FROM FIT TO COULOMB-NUCLEARINTERFERENCE.


Anti-Proton-Proton Total Elastic Cross-Sections in the T and U Regions (0.69-GeV/c to 2.43-GeV/c)

Coupland, M. ; Eisenhandler, E. ; Gibson, W.R. ; et al.
Phys.Lett.B 71 (1977) 460-464, 1977.
Inspire Record 121087 DOI 10.17182/hepdata.27503

Antiproton-proton total elastic cross sections at 21 incident momenta in the range 0.69 to 2.43 GeV/ c have been deduced by combining p̄p elastic differential cross sections over a c.m. angular range −0.95 ⩽ cos θ ∗ ⩽ 0.93 with forward elastic cross sections derived from recent real-part measurements and p̄p total cross sections. Two bumps are observed, at M 1 ⋍ 2.155 and M 2 ⋍ 2.345 GeV /c 2 , having widths of Г 1 ∼ 0.135 and Г 2 ∼ 0.135 GeV /c 2 . Corresponding structures in other p̄p reaction channels are discussed.

1 data table
Table 1

Axis error includes +- 4/4 contribution.


The Real Part of anti-p p Forward Elastic Scattering Amplitude at 0.7-GeV/c

Kaseno, H. ; Hamatsu, R. ; Kawano, K. ; et al.
Phys.Lett.B 61 (1976) 203-206, 1976.
Inspire Record 3400 DOI 10.17182/hepdata.27693

The differential cross sections of p p elastic scattering at 0.7 GeV/ c were obtained in the range 0.0018<| t |⩽0.0320 GeV 2 . From the interference between the Coulomb and the nuclear amplitude, the ratio of real to imaginary part of the forward nuclear amplitude was found to be +0.33±0.04.

3 data tables
Table 1

No description provided.

Table 2

No description provided.

Table 3

FIT FOR FORWARD NUCLEAR AMPLITUDE IN COULOMB INTERFERENCE REGION.


Measurement of the Total and Partial anti-p p Cross-Section Between 1901-MeV and 1950-MeV

The CERN-Liverpool-Mons-Padua-Rome-Trieste collaboration Chaloupka, V. ; Drevermann, H. ; Marzano, F. ; et al.
Phys.Lett.B 61 (1976) 487-492, 1976.
Inspire Record 108895 DOI 10.17182/hepdata.27669

The presence of a structure in the p̄p total cross section at 1930–1940 MeV, with a narrow width of 9 MeV is confirmed. The interpretation of the effect as a single, non interfering, resonance is made difficult by the comparison of the elastic scattering with the charge exchange cross sections.

1 data table
Table 1

'INELASTIC' IS 0+2+4+6 PRONGS MINUS ELASTIC.


Differential Cross-Sections for anti-Proton-Proton Elastic Scattering Between 0.69-GeV/c and 2.43-GeV/c

Eisenhandler, E. ; Gibson, W.R. ; Hojvat, C. ; et al.
Nucl.Phys.B 113 (1976) 1-33, 1976.
Inspire Record 109426 DOI 10.17182/hepdata.8439

Measurements have been made of the differential cross section for p p elastic scattering over a c.m. angular range −0.95 ⩽ cos θ ∗ ⩽ 0.93 at 21 incident antiproton momenta between 0.69 GeV/ c and 2.43 GeV/ c (c.m. energy 1.96–2.58 GeV). About 10 5 events were obtained at each momentum. The results are discussed primarily in terms of the formation of s -channel resonances in the T and U mass regions, and within the context of the optical model of Frahn and Venter.

7 data tables
Table 1

No description provided.

Table 2

No description provided.

Table 3

No description provided.

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