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Inclusive photoproduction cross sections for pions, kaons and protons have been measured in the photon fragmentation region and are compared with recent electroproduction data at q 2 = 1.16 (GeV/ c ) 2 . If the cross sections are normalized to the total hadronic cross sections at q 2 = 0 and q 2 = 1.16 (GeV/ c ) 2 , respectively, we observe that more pions, about an equal number of protons, but fewer kaons are found in the photoproduction case for x ≥ 0.3.

3 data tables

Table 1

No description provided.

Table 2

No description provided.

Table 3

No description provided.

Vector-meson electroproduction at high q-squared

Ahrens, L. ; Berkelman, Karl ; Brown, G.S. ; et al.

Phys.Rev.Lett. 31 (1973) 131-133, 1973.

Inspire Record 84487 DOI 10.17182/hepdata.47133

We have measured ρ0, ω (combined) and ϕ electroproduction over a range of virtual-photon four-momentum Q2 from 0.4 to 2.2 GeV2 and for photon energies ν from 2.7 to 8.6 GeV. We find that the slope of the t (momentum transfer) dependence of the ρ0 and ω forward peak decreases with increasing Q2 to less than half of the photoproduction slope.

1 data table

Table 1

The cross section for virtual photon are derived from E- P cross section bydividing on the virtual-photon flux factor.

Observation of increasing charged multiplicity as a function of transverse momentum in 28.5-gev/c p p interactions

Ramanauskas, A. ; Anderson, E.W. ; Fisher, G.P. ; et al.

Phys.Rev.Lett. 31 (1973) 1371-1374, 1973.

Inspire Record 83758 DOI 10.17182/hepdata.47029

We have measured the mean charged multiplicity n¯CH as a function of transverse momentum p⊥ of the forward proton in the reaction p+p→p+MM for five intervals of missing mass (MM) using our Multiparticle Argo Spectrometer System. We observe an increase of n¯CH for p⊥>1 GeV/c.

1 data table

Table 1

No description provided.

Measurement of the polarization parameter of the reactions pi- p ---> pi0 n and eta n at 5 and 8 gev/c

Bonamy, P. ; Borgeaud, P. ; Crozon, M. ; et al.

Nucl.Phys.B 52 (1973) 392-402, 1973.

Inspire Record 84261 DOI 10.17182/hepdata.50104

Measurements of the polarization parameter of the reactions π − p → π 0 n and π − p → η n at 4.90 and 7.85 GeV/ c and for a squared four-momentum transfer − t ranging from 0.1 to 2.0 (GeV/ c ) 2 have been achieved by using a butanol polarized proton target and detecting only the two γ's from the neutral meson decay. The background due to events involving bound protons has been separately measured and subtracted out. A large positive polarization has been found for the reaction π − p → π 0 n. It is consistent with other pion-nucleon scattering data connected by isospin conservation. The polarization for the reaction π − p → η n is not significantly different from zero within the large experimental errors.

2 data tables

Table 1

No description provided.

Table 2

No description provided.

MEASUREMENT OF P P ---> P X BETWEEN 50-GEV/C AND 400-GEV/C.

Abe, K. ; De Lillo, T. ; Robinson, B. ; et al.

Phys.Rev.Lett. 31 (1973) 1527-1530, 1973.

Inspire Record 81796 DOI 10.17182/hepdata.50301

We present measurements of the invariant cross section for the inclusive reaction p+p→p+X in the region 0.14<|t|<0.38 GeV2, 100<s<750 GeV2, and 0.80<x<0.93.

1 data table

Table 1

The cross sections are fitted by the formula CONST(C=A)*EXP(SLOPE*T)*(1+CO NST(C=B)/SQRT(S)).

Elastic electron-proton scattering between 0.05 and 0.30 (gev/c)-squared

Botterill, D.R. ; Braben, D.W. ; Montgomery, Hugh E. ; et al.

Phys.Lett.B 46 (1973) 125-128, 1973.

Inspire Record 86172 DOI 10.17182/hepdata.47844

Elastic electron proton scattering has been used to check the validity of the dipole fit of the proton form factors at momentum transfer between 0.05 and 0.30 (GeV/ c ) 2 . The general behaviour of the cross sections is in agreement with previous measurements and is close to the dipole predictions but there is the suggestion of some small amplitude deviations. It is speculated that these deviations may be related to similar effects in the proton formfactor derived from the ISR pp elastic scattering data via a Chou-Yang model.

4 data tables

Table 1

D(SIG(N=DIPOLE))/D(OMEGA) is cross-section derived in the assumption that both the magnetic and electric form - factors of the proton can be expressed by the dipole formula G(q**2) = 1/(1 + q**2/0.71)**2. Data are read from graph by BVP.

Table 2

Table 3

Results of fit of the combined data samples of Table 1 and Table 2. Data points was fitted by formula A + B*q**2 + C*sin(OMEGA*q**2 + PHI).

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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

312 data tables

Table 1

No description provided.

Table 2

No description provided.

Table 3

No description provided.

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CM Energies (GeV)

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On investigation of dependences of the yields of pions and protons, produced at theta(lab)=90 degrees at e(gamma)max=400 mev upon nucleus mass number

Photoproduction of single pi+- mesons on nuclei at e(gamma)=2 and 3 gev. parameters of proton-neutron distribution in nuclei

Nuclear absorption cross-sections for pions, kaons, protons, and anti-protons in the momentum range 6-60 gev/c

Measurement of inclusive photoproduction at 3.2 gev and comparison with electroproduction

Vector-meson electroproduction at high q-squared

Observation of increasing charged multiplicity as a function of transverse momentum in 28.5-gev/c p p interactions

Measurement of the polarization parameter of the reactions pi- p ---> pi0 n and eta n at 5 and 8 gev/c

MEASUREMENT OF P P ---> P X BETWEEN 50-GEV/C AND 400-GEV/C.

Elastic electron-proton scattering between 0.05 and 0.30 (gev/c)-squared

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