HEPData Search

Showing 7 of 7 results

A Detailed Study of Average Charged Particle Multiplicity Versus Available Energy and Invariant Mass at Different $\sqrt{s}$ in $p p$ Interactions

Basile, M. ; Bonvicini, G. ; Cara Romeo, G. ; et al.

Nuovo Cim.A 67 (1982) 244, 1982.

Inspire Record 168751 DOI 10.17182/hepdata.37531

By using (pp) interactions at three different c.m. energies,$\left( {\sqrt 8 } \right)_{pp} $=30, 44, 62 GeV, it is shown that the average charged-particle multiplicity <nch>vs. the invariant mass of the hadronic systemm1,2 has the same behaviour as it hasvs. 2Ehad. Moreover, in both cases <nch> is shown to be nearly independent of$\left( {\sqrt 8 } \right)_{pp} $ and in good agreement with the average charged-particle multiplicity measured in the (e+e−) annihilation.

10 data tables

Table 1

WITH SQRT(S) OF 30 GEV.

Table 2

WITH SQRT(S) OF 44 GEV.

Table 3

WITH SQRT(S) OF 62 GEV.

More…

Charged Particle Multiplicities in ($p p$) Interactions and Comparison With ($e^+ e^-$) Data

Basile, M. ; Cara Romeo, G. ; Cifarelli, L. ; et al.

Nuovo Cim.A 65 (1981) 400, 1981.

Inspire Record 166765 DOI 10.17182/hepdata.37470

By using three different c.m. energies in pp interactions,$\sqrt s $, 44, 62 GeV, it is shown that the average charged-particle multiplicity <nch> sclaes with$\sqrt s $ once the correct hadronic energy available for multiparticle production,Ehad, is used as basic parameter. The pp data, analysed in this way, are compared with e+e− data at equivalent energies. The agreement is very satisfactory.

6 data tables

Table 1

WITH SQRT(S) OF 30 GEV.

Table 2

WITH SQRT(S) OF 44 GEV.

Table 3

WITH SQRT(S) OF 62 GEV.

More…

The Energy Dependence of Charged Particle Multiplicity in $p p$ Interactions

Basile, M. ; Cara Romeo, G. ; Cifarelli, L. ; et al.

Phys.Lett.B 95 (1980) 311-312, 1980.

Inspire Record 153920 DOI 10.17182/hepdata.27162

The average charged multiplicity in proton-proton interactions has been studied at √ s = 62 GeV. A very good agreement with the average charged multiplicity measured in e + e − annihilation at different energies is obtained by redefining, in p-p, the correct energies available for particle production. This means that a p-p collision at √ s = 62 GeV does in fact correspond to a large range of effective hadronic energies available for particle production.

1 data table

Table 1

AVERAGE CHARGED MULTIPLICITY AS A FUNCTION OF HADRONIC ENERGY WHERE E(NAME=HAD) IS THE INCIDENT PROTON ENERGY (COLLIDING BEAM ENERGY) MINUS THE LEADING PROTON ENERGY.

Total Cross-Sections of $\pi^{\pm}$, $K^{\pm}$, p and $\bar{p}$ on Protons and Deuterons Between 200 GeV/c and 370 GeV/c

Carroll, A.S. ; Chiang, I.H. ; Kycia, T.F. ; et al.

Phys.Lett.B 80 (1979) 423-427, 1979.

Inspire Record 132765 DOI 10.17182/hepdata.27362

Total cross sections of π ± , K ± , p and p on protons and deuterons have been measured at 6 momenta between 200 and 370 GeV/ c .

24 data tables

Table 1

No description provided.

Table 2

No description provided.

Table 3

No description provided.

More…

A MEASUREMENT OF THE p p TOTAL CROSS-SECTION AT 200-GeV/c AND 300-GeV/c

Gustafson, H.Richard ; Jones, Lawrence W. ; Longo, Michael J. ; et al.

Phys.Rev.Lett. 32 (1974) 441-444, 1974.

Inspire Record 80575 DOI 10.17182/hepdata.21301

We have measured total cross sections for p−p scattering with the results σT=40.42±0.27 mb at 200 GeV/c and 40.40 ± 0.28 mb at 300 GeV/c. Our 300-GeV/c result is significantly higher than published data from the CERN intersecting storage rings. Our data, taken together with the Serpukhov data, indicate that the cross section rises ≅ 2 mb between 60 and 250 GeV. The variation of the cross section with energy may be more complicated than the a+blnsα behavior commonly assumed for Elab≳50 GeV.

1 data table

Table 1

Axis error includes +- 0.0/0.0 contribution (QUOTED ERRORS ARE COMBINED STATISTICAL AND SYSTEMATIC).

Cross-Sections and Charged Particle Multiplicities at 102-GeV/c and 405-GeV/c.

Bromberg, C. ; Chaney, D. ; Cohen, Daniel H. ; et al.

Phys.Rev.Lett. 31 (1973) 1563-1566, 1973.

Inspire Record 81962 DOI 10.17182/hepdata.21360

We have measured the total inelastic cross section (σinel) and charged-particle multiplicities obtained in pp collisions at 405 GeV/c. The data are from a preliminary 12 000-picture bubble-chamber exposure. We find σinel=32.8±1.0 mb; the low moments of the multiplicity distribution for negative particles are 〈n−〉=3.50±0.07, D−=2.37±0.05, f2−=2.1±0.2, and f3−=0.1±0.9. We also present updated results at 102 GeV/c.

3 data tables

Table 1

SUPERCEDES PRELIMINARY RESULTS IN J. W. CHAPMAN ET AL., PRL 29, 1686 (1972).

Table 2

No description provided.

Table 3

FIT TO ELASTIC DIFFERENTIAL CROSS SECTION FOR 0.05 < -T < 0.7 GEV**2.