[1] E. Matsinos, W. S. Woolcock, G. C. Oades, G. Rasche and A. Gashi, “Phase-Shift Analysis of Low-Energy Elastic-Scattering Data,” Nuclear Physics A, Vol. 778, No. 1-2, 2006, pp. 95-123. doi:10.1016/j.nuclphysa.2006.07.040
[2] E. Matsinos and G. Rasche, “Analysis of the Low-Energy π±p Elastic-Scattering Data of the CHAOS Collaboration,” 2012. http://arxiv.org/abs/1203.3635
[3] H. Denz, et al., “π±p Differential cross Sections at Low Energies,” Physics Letters B, Vol. 633, No. 2-3, 2006, pp. 209-113. doi:10.1016/j.physletb.2005.12.017
[4] E. Matsinos and G. Rasche, “Analysis of the Low-Energyπ-p Charge-Exchange Data,” 2012. http://arxiv.org/abs/1203.3856
[5] A. Gashi, E. Matsinos, G. C. Oades, G. Rasche and W. S. Woolcock, Nuclear Physics A, Vol. 686, No. 1-4, 2001, pp. 447-462. doi:10.1016/S0375-9474(00)00603-5; A. Gashi, E. Matsinos, G. C. Oades, G. Rasche and W. S. Woolcock, “Electromagnetic Corrections for the Analysis of Low Energy π ? p Scattering Data,” Nuclear Physics A, Vol. 686, No. 1-4, 2001, pp. 463-477. doi:10.1016/S0375-9474(00)00604-7
[6] K. Nakamura, et al. (Particle Data Group), “Review of Particle Physics,” Journal of Physics G, Vol. 37, No. 7A, 2010, Article ID: 075021. doi:10.1088/0954-3899/37/7A/075021
[7] W. R. Gibbs, L. Ai and W. B. Kaufmann, “Isospin Breaking in Low-Energy Pion-Nucleon Scattering,” Physical Review Letters, Vol. 74, No. 19, 1995, pp. 3740-3743. doi:10.1103/PhysRevLett.74.3740
[8] E. Matsinos, “Isospin Violation in the πN System at Low Energies,” Physical Review C, Vol. 56, No. 6, 1997, pp. 3014-3025. doi:10.1103/PhysRevC.56.3014
[9] R. A. Arndt and L. D. Roper, “The Use of Partial-Wave Representations in the Planning of Scattering Measurements. Application to 330 MeV np Scattering,” Nuclear Physics B, Vol. 50, No. 1, 1972, pp. 285-300. doi:10.1016/S0550-3213(72)80019-1
[10] E.G. Auld, et al., “π+ - p Elastic Scattering at 47.9 MeV,” Canadian Journal of Physics, Vol. 57, No. 1, 1979, pp. 73- 78. doi:10.1139/p79-008
[11] B. G. Ritchie, et al., “π+p Scattering at 65 to 140 MeV,” Physics Letters B, Vol. 125, No. 2-3, 1983, pp. 128-32. doi:10.1016/0370-2693(83)91251-0
[12] J. S. Frank, et al., “Measurement of Low-Energy Elastic π±p Differential cross Sections,” Physical Review D, Vol. 28, No. 7, 1983, pp. 1569-1585. doi:10.1103/PhysRevD.28.1569
[13] J. T. Brack, et al., “πp Elastic Scattering from 67 to 139 MeV,” Physical Review C, Vol. 34, No. 5, 1986, pp. 1771-1778. doi:10.1103/PhysRevC.34.1771
[14] J. T. Brack, et al., “Large-Angleπ±p Elastic Scattering at 66.8 MeV,” Physical Review C, Vol. 38, No. 5, 1988, pp. 2427-2429. doi:10.1103/PhysRevC.38.2427
[15] U. Wiedner, et al., “Hidden Strangeness in the Proton? Determination of the Real Part of the Isospin-Even Forward-Scattering Amplitude of Pion-Nucleon Scattering at 54.3 MeV,” Physical Review D, Vol. 40, No. 11, 1989, pp. 3568-3581. doi:10.1103/PhysRevD.40.3568
[16] J. T. Brack, et al., “Absolute Differential cross Sections forπ±p Elastic Scattering at 30 ≤ Tπ ≤ 67 MeV,” Physical Review C, Vol. 41, No. 5, 1990, pp. 2202-2214. doi:10.1103/PhysRevC.41.2202
[17] J. T. Brack, et al., “Forward Angleπ±p Elastic Scattering Differential cross Sections at Tπ = 87 to 139 MeV,” Physical Review C, Vol. 51, No. 2, 1995, pp. 929-936. doi:10.1103/PhysRevC.51.929
[18] Ch. Joram, et al., “Low-Energy Differential cross Sections of Pion-Proton (π±p) Scattering. I. The Isospin-Even forward Scattering Amplitude at Tπ = 32.2 and 44.6 MeV,” Physical Review C, Vol. 51, 1995, pp. 2144-2158. doi:10.1103/PhysRevC.51.2144; Ch. Joram, et al., “Low- Energy Differential cross Sections of Pion-Proton (π±p) Scattering. II. Phase Shifts at Tπ = 32.7, 45.1, and 68.6 MeV,” Physical Review C, Vol. 51, No. 4, 1995, pp. 2159-2165. doi:10.1103/Phys
[19] M. E. Sevior, et al., “Analyzing Powers in Elastic Scattering from Tπ = 98 to 263 MeV,” Physical Review C, Vol. 40, No. 6, 1989, pp. 2780-2788. doi:10.1103/PhysRevC.40.2780
[20] R. Wieser, et al., “Measurement of the π+→ pAnalyzing Power at 68.3 MeV,” Physical Review C, Vol. 54, No. 4, 1996, pp. 1930-1934. doi:10.1103/PhysRevC.54.1930
[21] B. J. Kriss, πN Newsletter, Vol. 12, 1997, pp. 20-25; B. J. Kriss, et al., “Pion-Proton Integral cross Sections at Tπ = 40 to 284 MeV,” Physical Review C, Vol. 59, No. 3, 1999, pp. 1480-1487. doi:10.1103/PhysRevC.59.1480
[22] E. Friedman, “Partial Total πN cross Sections,” πN Newsletter, Vol. 15, 1999, pp. 37-42.
[23] A. A. Carter, J. R. Williams, D. V. Bugg, P. J. Bussey and D. R. Dance, “The Total cross Sections for Pion-Proton Scattering between 70 MeV and 290 MeV,” Nuclear Physics B, Vol. 26, No. 3, 1971, pp. 445-460. doi:10.1016/0550-3213(71)90188-X
[24] E. Pedroni, et al., “A Study of Charge Independence and Symmetry fromπ+ andπ- Total cross Sections on Hydrogen and Deuterium near the 3,3 Resonance,” Nuclear Physics A, Vol. 300, No. 2, 1978, pp. 321-347. doi:10.1016/0375-9474(78)96136-5
[25] M. Janousch, et al., “Destructive Interference of s and p Waves in 180?C π-p Elastic Scattering,” Physics Letters B, Vol. 414, No. 3-4, 1997, pp. 237-241. doi:10.1016/S0370-2693(97)01169-6
[26] J. C. Alder, et al., “Measurement of the Asymmetry Parameter A inπ-p Elastic and Charge-Exchange Scattering at Pion Energies Tπ = 98, 238, 292, and 310 MeV,” Physical Review D, Vol. 27, No. 5, 1983, pp. 1040-1055. doi:10.1103/PhysRevD.27.1040
[27] G. J. Hofman, et al., “Analyzing Powers forπ-p → Elastic Scattering between 87 and 263 MeV,” Physical Review C, Vol. 58, No. 6, 1998, pp. 3484-3493. doi:10.1103/PhysRevC.58.3484
[28] J. D. Patterson, et al., “Analyzing Powers for πp Elastic Scattering between 57 and 139 MeV,” Physical Review C, Vol. 66, No. 2, 2002, Article ID: 025207. doi:10.1103/PhysRevC.66.025207
[29] P. Y. Bertin, et al., “π+p Scattering below 100 MeV,” Nuclear Physics B, Vol. 106, 1976, pp. 341-354. doi:10.1016/0550-3213(76)90383-7
[30] P. J. Bussey, et al., “πp Elastic Scattering from 88 to 292 MeV,” Nuclear Physics B, Vol. 58, No. 2, 1973, pp. 363-377. doi:10.1016/0550-3213(73)90589-0
[31] R. Meier, et al., “Low Energy Analyzing Powers in Pion-Proton Elastic Scattering,” Physics Letters B, Vol. 588, No. 3-4, 2004, pp. 155-162. doi:10.1016/j.physletb.2004.02.071
[32] H.-Ch. Schr?der, et al., “The Pion-Nucleon Scattering Lengths from Pionic Hydrogen and Deuterium,” European Physical Journal C, Vol. 21, No. 3, 2001, pp. 473- 488. doi:10.1007/s100520100754
[33] G. C. Oades, G. Rasche, W. S. Woolcock, E. Matsinos and A. Gashi, “Determination of the s-Wave Pion-Nucleon Threshold Scattering Parameters from the Results of Experiments on Pionic Hydrogen,” Nuclear Physics A, Vol. 794, No. 1-2, 2007, pp. 73-86. doi:10.1016/j.nuclphysa.2007.07.007
[34] R. A. Arndt, W. J. Briscoe, I. I. Strakovsky and R. L. Workman, “Extended Partial-Wave Analysis of πN Scattering Data,” Physical Review C, Vol. 74, No. 4, 2006, Article ID: 045205. doi:10.1103/PhysRevC.74.045205
[35] F. James, “MINUIT—Function Minimization and Error Analysis,” CERN Program Library Long Writeup D506.
[36] N. Fettes and E. Matsinos, “Analysis of Recentπ+p Low-Energy Differential Cross-Section Measurements,” Physical Review C, Vol. 55, No. 1, 1997, pp. 464-473. doi:10.1103/PhysRevC.55.464
[37] T. E. O. Ericson and W. Weise, “Pions and Nuclei,” Clarendon Press, Oxford, 1988.
[38] P. F. A. Goudsmit, H. J. Leisi, E. Matsinos, B. L. Birbrair and A. B. Gridnev, “The Extended Tree-Level Model for the Pion-Nucleon Interaction,” Nuclear Physics A, Vol. 575, No. 4, 1994, pp. 673-706. doi:10.1016/0375-9474(94)90162-7
[39] R. Koch and E. Pietarinen, “Low-Energy πN Partial Wave Analysis,” Nuclear Physics A, Vol. 336, No. 3, 1980, pp. 331-346. doi:10.1016/0375-9474(80)90214-6; R. Koch, “A Calculation of Low-Energy πN Partial Waves Based on Fixed-t Analyticity,” Nuclear Physics A, Vol. 448, No. 4, 1986, pp. 707-731. doi:10.1016/0375-9474(86)90438-0
[40] J. M. Alacrón, J. M. Camalich and J. A. Oller, “Chiral Representation of the πN Scattering Amplitude and the Pion-Nucleon Sigma Term,” Physical Review D, Vol. 85, No. 5, 2012, Article ID: 051503. doi:10.1103/PhysRevD.85.051503