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Pion - deuteron elastic scattering at large angles from 0.90-GeV/c to 2.025-GeV/c

Abramov, B.M. ; Bulychjov, Sergey A. ; Druzhinin, B.L. ; et al.

Nucl.Phys.A 542 (1992) 579-586, 1992.

Inspire Record 294362 DOI 10.17182/hepdata.36686

The differential cross section for the backward (120° ⩽ θ c.m.s. ⩽ 180°) pion-deuteron elastic scattering was measured at eight incident pion momenta from 0.90 to 2.025 GeV/ c . A distinctive change in the shape of the angular distribution is observed. At 0.9 GeV/ c the differential cross section decreases smoothly to 180° in accordance with predictions of multiple-scattering theory. At 1.31 GeV/ c , i.e. in the region of the hypothetical 1 I 6 dibaryon with a mass of 2.9 GeV, the differential cross section is practically independent of angle. At higher energies a sharp backward peak is clearly seen. Connections of our results with dibaryons and Regge asymptotic behaviour are discussed.

8 data tables

Table 1

No description provided.

Table 2

No description provided.

Table 3

No description provided.

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RESULTS OF ELECTRONIC EXPERIMENTS IN STUDYING THE REACTION alpha (pi+-, p) + A (C, Al, Cu, Cd, Pb) ---> LAMBDA0 + X

Vorobev, L.S. ; Gavrilov, V.B. ; Goryainov, N.A. ; et al.

ITEP-89-27, 1989.

Inspire Record 278858 DOI 10.17182/hepdata.40114

None

26 data tables

Table 1

No description provided.

Table 2

No description provided.

Table 3

No description provided.

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Measurements of cross-sections for inclusive reactions pi+ pi- N ---> proton X at 1.84-GeV/c, 2.22-GeV/c, and 2.63-GeV/c and test of the model of inelastic intermediate states for pion - deuteron backward scattering

Abramov, B.M. ; Bulychjov, S.A. ; Dukhovskoi, I.A. ; et al.

Sov.J.Nucl.Phys. 48 (1988) 96-100, 1988.

Inspire Record 260552 DOI 10.17182/hepdata.2435

None

2 data tables

Table 1

No description provided.

Table 2

No description provided.

IRREGULARITIES IN ANGULAR DISTRIBUTION OF CUMULATIVE PARTICLES NEAR 180-DEGREES IN LAB

Vorobev, L.S. ; Gavrilov, V.B. ; Goryainov, N.A. ; et al.

Sov.J.Nucl.Phys. 44 (1986) 908-911, 1986.

Inspire Record 240060 DOI 10.17182/hepdata.17538

None

5 data tables

Table 1

No description provided.

Table 2

No description provided.

Table 3

No description provided.

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BACKWARD PION - DEUTERON ELASTIC SCATTERING FROM 1.75-GeV/c TO 3.1-GeV/c

Abramov, B.M. ; Ayrapetov, E.A. ; Bagdasaryan, L.S. ; et al.

Phys.Lett.B 189 (1987) 295-298, 1987.

Inspire Record 219757 DOI 10.17182/hepdata.40130

Measurements of the differential cross section for π − d elastic scattering in the backward angular region (−1 ⩽ cos θ cms ⩽ −0.98) are presented. These measurements were made at nine incident pion momenta P π ranging from 1.75 to 3.09 GeV/ c and at the largest values of q 2 [up to 7 (GeV/ c ) 2 ] ever reached experimentally; here q 2 is the momentum transfer squared. The differential cross section was found to decrease rapidly with increasing momentum d σ d Ω cms (180°) ∼ P −15.7 π , d σ d t ∼ (q 2 ) −12.8 . The data are compared with predictions of Regge and quark bag models.

1 data table

Table 1

Statistical errors only.

Energy Dependence of Backward $\pi^- D$ Elastic Scattering in the 1-{GeV} - 2-{GeV} Region

Abramov, B.M. ; Dukhovskoi, I.A. ; Kishkurno, V.V. ; et al.

Nucl.Phys.A 372 (1981) 301-316, 1981.

Inspire Record 172727 DOI 10.17182/hepdata.37082

Differential cross sections for backward π − d elastic scattering (−1 ≦ cos θ c.m ≦ −0.98) have been measured at fourteen momenta from 0.98 to 1.76 GeV/ c and at 2.45 GeV/ c . Energy dependence of the cross section exibits a new wide structure at √ s ≈ 2.9 GeV. Possible mechanisms of the reaction accounting for this structure are presented. Experimental data are compared with theoretical calculations.

5 data tables

Table 1

BEAM ERROR D(P)/P = 0.300 PCT.

Table 2

BEAM ERROR D(P)/P = 0.300 PCT.

Table 3

BEAM ERROR D(P)/P = 0.300 PCT.