Crouch, H.R.
EHS/NA22
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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.


Inclusive rho0, K*0 (890) and anti-K*0 (890) production in peripheral K+ Al, pi+ Al and pi+ Au collisions at 250-GeV/c.

The EHS/NA22 collaboration Ajinenko, I.V. ; Böttcher, H. ; Botterweck, F. ; et al.
Phys.Lett.B 277 (1992) 524-527, 1992.
Inspire Record 339319 DOI 10.17182/hepdata.29233

Average numbers of ϱ 0 , K ∗0 (890) and K ∗0 (890) produced in peripheral collisions (with the number of “grey” protons n g ⩽2) of K + with Al and of π + with Al and Au nuclei at 250 GeV/ c are measured in the EHS(NA22) experiment at the CERN SPS. No evidence is found for suppression of vector meson production relative to K + p and π + collisions at the same energy.

3 data tables
Table 1

No description provided.

Table 2

No description provided.

Table 3

No description provided.