Braunschweig, W
PI+ P --> CHARGED X
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Transverse momentum compensation in pi+ p interactions at 250-GeV/c

The EHS/NA22 collaboration Agababyan, N.M. ; Ajinenko, I.V. ; Białkowska, H. ; et al.
Z.Phys.C 64 (1994) 381-390, 1994.
Inspire Record 376919 DOI 10.17182/hepdata.41987

Compensation of transverse momentum is studied in π+p interactions at 250 GeV/c. SignificantpT-transfer is found between c.m.s. hemispheres. With respect to the beam axis transverse momentum is compensated over the whole event, with respect to the sphericity axis mainly within one hemisphere. The highestpT in the event is mainly compensated by increased multiplicity. The QGSM and FRITIOF models qualitatively reproduce these effects, but important differences are observed.

3 data tables
Table 1

Mean value of total transverse VECTOR defined as sum over all charged particles in the forward or backward hemispheres was measured.

Table 2

Mean value of total transverse VECTOR defined as sum over all charged particles in the forward or backward hemispheres was measured.

Table 3

No description provided.


rivet Analysis
Cross-Sections and Charged Multiplicity Distributions for pi+ p, K+ p and p p Interactions at 250-GeV/c

The NA22 collaboration Adamus, M. ; Agababyan, N.M. ; Ajinenko, I.V. ; et al.
Z.Phys.C 32 (1986) 475, 1986.
Inspire Record 18431 DOI 10.17182/hepdata.15845

Cross sections and charged multiplicity distributions for π+p,K+p andpp interactions at 250 GeV/c are presented and compared to each other as well as to earlier (for π+p andK+p lower energy) data. Consistently, the meson-proton (M+p) data have narrower multiplicity distributions and higher average multiplicity thanpp data. Up to our energy, generalized KNO functions describe the energy dependence of the shape of the multiplity distribution with one parameter forM+p and one forpp collisions. If interpreted in terms of negative binomials, the parameter 1/k tends to be slightly lower forM+p than forpp data. For both types of hadron-hadron collision, 1/k is larger than fore+e− andlp collisions.

7 data tables
Table 1

No description provided.

Table 2

No description provided.

Table 3

No description provided.

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Topological, Total and Elastic Cross-sections for $K^+ p$, $\pi^+ p$ and $p p$ Interactions at 147-{GeV}/$c$

Brick, D. ; Rudnicka, H. ; Shapiro, A.M. ; et al.
Phys.Rev.D 25 (1982) 2794, 1982.
Inspire Record 11840 DOI 10.17182/hepdata.4111

The Fermilab hybrid 30-in. bubble-chamber spectrometer was exposed to a tagged 147-GeV/c positive beam containing π+, K+, and p. A sample of 3003 K+p, 19410 pp, and 20745 π+p interactions is used to derive σn, 〈n〉, f2cc, and 〈nc〉D for each beam particle. These values are compared to values obtained at other, mostly lower, beam momenta. The overall dependence of 〈n〉 on Ea, the available center-of-mass energy, for these three reactions as well as π−p and pp interactions has been determined.

13 data tables
Table 1

No description provided.

Table 2

No description provided.

Table 3

No description provided.

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