Backward <span class="aps-inline-formula"><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><msup><mrow><mi>π</mi></mrow><mrow><mo>+</mo></mrow></msup></mrow><mi>p</mi></math></span> Elastic Scattering from 2.18 to <span class="aps-inline-formula"><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mn>5.25</mn><mi> </mi><mfrac><mrow><mi mathvariant="normal">GeV</mi></mrow><mrow><mi>c</mi></mrow></mfrac></math></span>

R. A. Sidwell; R. R. Crittenden; K. F. Galloway; R. M. Heinz; H. A. Neal

doi:10.1103/PhysRevD.3.1523

Access by Xinjiang University

Backward $π^{+} p$ Elastic Scattering from 2.18 to $5.25 \frac{GeV}{c}$

R. A. Sidwell^*, R. R. Crittenden, K. F. Galloway, R. M. Heinz, and H. A. Neal^†

Indiana University, Bloomington, Indiana 47401

^*Present address: CERN, Geneva 23, Switzerland.
^†Alfred P. Sloan Foundation Fellow.

PDF

Phys. Rev. D 3, 1523 – Published 1 April, 1971

DOI: https://doi.org/10.1103/PhysRevD.3.1523

Abstract

Differential cross sections are presented for pion-proton elastic scattering in the angular range $- 0.6 ≳ cos θ_{c . m .} ≳ - 0.98$ at 15 incident $π^{+}$ momenta from $2.18 - 5.25 \frac{GeV}{c}$ . The angular distributions rise steeply near 180° at all momenta. For laboratory momenta $≳ 2.75 \frac{GeV}{c}$ they show a minimum at $u \approx - 0.17 {(\frac{GeV}{c})}^{2}$ and a broad maximum near $u \approx - 0.6 {(\frac{GeV}{c})}^{2}$ . When the data are plotted versus $s$ , for fixed $u$ , a strong signal from the $Δ (2420)$ resonance is observed. The data are compared with a direct-channel resonance model and with a Regge model which considers the exchange of the $N_{α}$ , $N_{γ}$ , and $Δ_{δ}$ Regge trajectories. The qualitative success of both the direct-channel resonance model and the Regge model lends support to the concept of duality.

References (31)

R. R. Crittenden, K. F. Galloway, R. M. Heinz, H. A. Neal, and R. A. Sidwell, Phys. Rev. D 1, 3050 (1970)
J. P. Chandler, R. R. Crittenden, K. F. Galloway, R. M. Heinz, H. A. Neal, K. A. Potocki, W. F. Prickett, and R. A. Sidwell, Phys. Rev. Letters 23, 186 (1969)
A. S. Carroll, J. Fischer, A. Lundby, R. H. Phillips, C. L. Wang, F. Lobkowicz, A. C. Melissinos, Y. Nagashima, and S. Tewksbury, Phys. Rev. Letters 20, 607 (1968)
V. Barger and D. Cline, Phys. Rev. 155, 1792 (1967) [3]
J. Orear, D. P. Owen, F. C. Peterson, A. L. Read, D. G. Ryan, D. H. White, A. Ashmore, C. J. S. Damerell, W. R. Frisken, and R. Rubinstein, Phys. Rev. Letters 21, 389 (1968)
C. Chiu and J. Stack, Phys. Rev. 153, 1575 (1967)
R. M. Heinz and M. H. Ross, Phys. Rev. Letters 14, 1091 (1965)
S. W. Kormanyos, A. D. Krisch, J. R. O'Fallon, K. Ruddick, and L. G. Ratner, Phys. Rev. Letters 16, 709 (1966)
R. Dolen, D. Horn, and C. Schmid, Phys. Rev. 166, 1768 (1968) C. B. Chiu and A. V. Stirling, Phys. Letters 26B, 236 (1968) Nuovo Cimento 56A, 805 (1968)
F. N. Dikmen, Phys. Rev. Letters 18, 798 (1967)
[3] C. T. Coffin, N. Dikmen, L. Ettlinger, D. Meyer, A. Saulys, K. Terwilliger, and D. Williams, Phys. Rev. 159, 1169 (1967) J. Banaigs, J. Berger, C. Bonnel, J. Duflo, L. Goldzahl, F. Plouin, W. F. Baker, P. J. Carlson, V. Chabaud, and A. Lundby, Nucl. Phys. B8, 31 (1968) W. F. Baker et al., Phys. Letters 23, 605 (1966) Nucl. Phys. B9, 249 (1969) H. Brody, R. Lanza, R. Marshall, J. Niederer, W. Selove, M. Shochet, and R. Van Berg, Phys. Rev. Letters 16, 828 (1966)
E. Berger and G. Fox, Phys. Rev. 188, 2120 (1960)
R. R. Crittenden, R. M. Heinz, D. B. Lichtenberg, and E. Predazzi, Phys. Rev. D 1, 169 (1970)
R. A. Lundy, T. B. Novey, D. D. Yovanovitch, and V. L. Telegdi, Phys. Rev. Letters 14, 504 (1965)
Omitted endnote
T. Carides, J. G. Cottinham, A. V. Feltman, A. S. Grossman, L. B. Leipuner, J. G. Marinuzzi, and G. C. Schwender, Rev. Sci. Instr. 38, 1425 (1967)
K. A. Potocki, Ph.D. thesis, Indiana University, 1968 (unpublished)
W. F. Prickett, Ph.D. thesis, Indiana University, 1968 (unpublished)
Omitted endnote
B. B. Brabson, R. Crittenden, R. M. Heinz, R. C. Kammerud, H. A. Neal, H. W. Paik, and R. A. Sidwell, Phys. Rev. Letters 25, 553 (1970)
[11]
[11]
G. Giacomelli, P. Pini, and S. Stagni, CERN/HERA Report No. 69-1, 1969 (unpublished)
G. E. Hite, Rev. Mod. Phys. 41, 669 (1969)
E. Berger and G. Fox, ANL/HEP Report No. 7019, 1970 (unpublished)
F. Henyey, G. L. Kane, J. Pumplin, and M. H. Ross, Phys. Rev. 182, 1579 (1969) R. L. Kelly, G. L. Kane, and F. Henyey, Phys. Rev. Letters 24, 1511 (1970)
G. Hohler, J. Baacke, H. Schaile, and P. Sondegger, Phys. Letters 20, 79 (1966) G. Fox and C. Quigg, LRL Report No. UCRL 20001, 1970 (unpublished)
Omitted endnote
D. Sherden, N. Booth, G. Conforto, R. Esterling, J. Parry, J. Scheid, and A. Yokosawa, Phys. Rev. Letters 25, 898 (1970)
Particle Data Group, Rev. Mod. Phys. 41, 109 (1969) Rev. Mod. Phys.42 87 (1970)
P. G. Tomlinson, R. A. Sidwell, D. B. Lichtenberg, R. M. Heinz, R. R. Crittenden, and E. Predazzi, Nucl. Phys. B25, 443 (1971)

[c1] R. R. Crittenden, K. F. Galloway, R. M. Heinz, H. A. Neal, and R. A. Sidwell, Phys. Rev. D 1, 3050 (1970)

[c2] J. P. Chandler, R. R. Crittenden, K. F. Galloway, R. M. Heinz, H. A. Neal, K. A. Potocki, W. F. Prickett, and R. A. Sidwell, Phys. Rev. Letters 23, 186 (1969)

[c3] A. S. Carroll, J. Fischer, A. Lundby, R. H. Phillips, C. L. Wang, F. Lobkowicz, A. C. Melissinos, Y. Nagashima, and S. Tewksbury, Phys. Rev. Letters 20, 607 (1968)

[c4] V. Barger and D. Cline, Phys. Rev. 155, 1792 (1967) [3]

[c5] J. Orear, D. P. Owen, F. C. Peterson, A. L. Read, D. G. Ryan, D. H. White, A. Ashmore, C. J. S. Damerell, W. R. Frisken, and R. Rubinstein, Phys. Rev. Letters 21, 389 (1968)

[c6] C. Chiu and J. Stack, Phys. Rev. 153, 1575 (1967)

[c7] R. M. Heinz and M. H. Ross, Phys. Rev. Letters 14, 1091 (1965)

[c8] S. W. Kormanyos, A. D. Krisch, J. R. O'Fallon, K. Ruddick, and L. G. Ratner, Phys. Rev. Letters 16, 709 (1966)

[c9] R. Dolen, D. Horn, and C. Schmid, Phys. Rev. 166, 1768 (1968) C. B. Chiu and A. V. Stirling, Phys. Letters 26B, 236 (1968) Nuovo Cimento 56A, 805 (1968)

[c10] F. N. Dikmen, Phys. Rev. Letters 18, 798 (1967)

[c11] [3] C. T. Coffin, N. Dikmen, L. Ettlinger, D. Meyer, A. Saulys, K. Terwilliger, and D. Williams, Phys. Rev. 159, 1169 (1967) J. Banaigs, J. Berger, C. Bonnel, J. Duflo, L. Goldzahl, F. Plouin, W. F. Baker, P. J. Carlson, V. Chabaud, and A. Lundby, Nucl. Phys. B8, 31 (1968) W. F. Baker et al., Phys. Letters 23, 605 (1966) Nucl. Phys. B9, 249 (1969) H. Brody, R. Lanza, R. Marshall, J. Niederer, W. Selove, M. Shochet, and R. Van Berg, Phys. Rev. Letters 16, 828 (1966)

[c12] E. Berger and G. Fox, Phys. Rev. 188, 2120 (1960)

[c13] R. R. Crittenden, R. M. Heinz, D. B. Lichtenberg, and E. Predazzi, Phys. Rev. D 1, 169 (1970)

[c14] R. A. Lundy, T. B. Novey, D. D. Yovanovitch, and V. L. Telegdi, Phys. Rev. Letters 14, 504 (1965)

[c15] Omitted endnote

[c16] T. Carides, J. G. Cottinham, A. V. Feltman, A. S. Grossman, L. B. Leipuner, J. G. Marinuzzi, and G. C. Schwender, Rev. Sci. Instr. 38, 1425 (1967)

[c17] K. A. Potocki, Ph.D. thesis, Indiana University, 1968 (unpublished)

[c18] W. F. Prickett, Ph.D. thesis, Indiana University, 1968 (unpublished)

[c19] Omitted endnote

[c20] B. B. Brabson, R. Crittenden, R. M. Heinz, R. C. Kammerud, H. A. Neal, H. W. Paik, and R. A. Sidwell, Phys. Rev. Letters 25, 553 (1970)

[c21] [11]

[c22] [11]

[c23] G. Giacomelli, P. Pini, and S. Stagni, CERN/HERA Report No. 69-1, 1969 (unpublished)

[c24] G. E. Hite, Rev. Mod. Phys. 41, 669 (1969)

[c25] E. Berger and G. Fox, ANL/HEP Report No. 7019, 1970 (unpublished)

[c26] F. Henyey, G. L. Kane, J. Pumplin, and M. H. Ross, Phys. Rev. 182, 1579 (1969) R. L. Kelly, G. L. Kane, and F. Henyey, Phys. Rev. Letters 24, 1511 (1970)

[c27] G. Hohler, J. Baacke, H. Schaile, and P. Sondegger, Phys. Letters 20, 79 (1966) G. Fox and C. Quigg, LRL Report No. UCRL 20001, 1970 (unpublished)

[c28] Omitted endnote

[c29] D. Sherden, N. Booth, G. Conforto, R. Esterling, J. Parry, J. Scheid, and A. Yokosawa, Phys. Rev. Letters 25, 898 (1970)

[c30] Particle Data Group, Rev. Mod. Phys. 41, 109 (1969) Rev. Mod. Phys.42 87 (1970)

[c31] P. G. Tomlinson, R. A. Sidwell, D. B. Lichtenberg, R. M. Heinz, R. R. Crittenden, and E. Predazzi, Nucl. Phys. B25, 443 (1971)

Physical Review D

Export citation

Export citation

Backward $π^{+} p$ Elastic Scattering from 2.18 to $5.25 \frac{GeV}{c}$

Abstract

References (31)

Outline

Information

Filter

Filter

Article Lookup

Enter a citation

Backward π+p Elastic Scattering from 2.18 to 5.25 GeVc

Abstract

References (31)

Backward $π^{+} p$ Elastic Scattering from 2.18 to $5.25 \frac{GeV}{c}$