Tensor analyzing power T(20) for cumulative pion production from deuterons in a GeV energy region.

Afanasev, S. ; Anisimov, Yu. ; Fujieda, M. ; et al.
Nucl.Phys.A 625 (1997) 817-831, 1997.
Inspire Record 454165 DOI 10.17182/hepdata.36286

The tensor analyzing power T 20 for the reaction d ↑ + 12 C → π ± (0°) + X has been measured with a polarized deuteron beam from 6.2 to 9.0 GeV/ c at a pion momentum3.0 GeV/ c . This experiment is focused on “cumulatively produced pions”, which are produced beyond the kinematically allowed limit for free nucleon-nucleon collisions. The measured values of T 20 turn out to be close to zero. They are in disagreement with the results of our impulse approximation calculation which is based on a single NN → πNN interaction and takes into account the internal motion of nucleons in the deuteron. Possible explanations of the result are discussed.

3 data tables

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Measurement of the tensor analyzing power T(20) in inclusive deuteron breakup at 9-GeV/c on hydrogen and carbon

Azhgirey, L.S. ; Afanasyev, S.V. ; Chernykh, E.V. ; et al.
Phys.Lett.B 387 (1996) 37-42, 1996.
Inspire Record 328522 DOI 10.17182/hepdata.28341

The tensor analyzing power T 20 in inclusive deuteron breakup at 9 GeV/c and 0° on hydrogen and carbon targets up to internal momenta k of the proton in the deuteron of ∼ 1 GeV/c has been measured. The analyzing power remains negative up to the highest measured values of k , and is in definite disagreement with predictions from several theoretical models. A systematic difference between T 20 for deuteron breakup on hydrogen and carbon is observed.

2 data tables

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Analysis of Behavior of $\pi^-$ Mesons and Protons Produced in Nucleus-nucleus Interactions at 4.2-{GeV}/$c$ Per Nucleon Depending on the Number of Interacting Protons

Agakishiev, G.N. ; Backovic, S. ; Boldea, V. ; et al.
Sov.J.Nucl.Phys. 45 (1987) 852, 1987.
Inspire Record 235264 DOI 10.17182/hepdata.9548

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22 data tables

FRAGT IS CHARGE BARYON WITH PATH < 4 CM.

FRAGT IS CHARGE BARYON WITH PATH < 4 CM.

FRAGT IS CHARGE BARYON WITH PATH < 4 CM.

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Observation of Baryons With High Transverse Momenta in $p$, $d$, He and C Nuclear Interactions With Tantalum Nuclei at 4.2-{GeV}/$c$

Akhababian, N. ; Baatar, Ts. ; Baldin, A.M. ; et al.
Sov.J.Nucl.Phys. 37 (1983) 559, 1983.
Inspire Record 180913 DOI 10.17182/hepdata.9923

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10 data tables

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