NSR Query Results
Output year order : Descending NSR database version of April 11, 2024. Search: Author = B.G.Ritchie Found 63 matches. 2012AN16 Phys.Rev. C 86, 069801 (2012) M.Anghinolfi, J.Ball, N.A.Baltzell, M.Battaglieri, I.Bedlinskiy, M.Bellis, A.S.Biselli, C.Bookwalter, S.Boiarinov, P.Bosted, V.D.Burkert, D.S.Carman, A.Celentano, S.Chandavar, P.L.Cole, V.Crede, R.De Vita, E.De Sanctis, B.Dey, R.Dickson, D.Doughty, M.Dugger, R.Dupre, H.Egiyan, A.El Alaoui, L.El Fassi, L.Elouadrhiri, P.Eugenio, G.Fedotov, M.Y.Gabrielyan, M.Garcon, G.P.Gilfoyle, K.L.Giovanetti, F.X.Girod, J.T.Goetz, E.Golovatch, M.Guidal, L.Guo, K.Hafidi, H.Hakobyan, D.Heddle, K.Hicks, M.Holtrop, D.G.Ireland, B.S.Ishkhanov, E.L.Isupov, H.S.Jo, P.Khetarpal, A.Kim, W.Kim, V.Kubarovsky, S.V.Kuleshov, H.Y.Lu, I.J.D.MacGregor, N.Markov, M.E.McCracken, B.McKinnon, M.D.Mestayer, C.A.Meyer, M.Mirazita, V.Mokeev, K.Moriya, B.Morrison, A.Ni, S.Niccolai, G.Niculescu, I.Niculescu, M.Osipenko, A.I.Ostrovidov, K.Park, S.Park, S.Anefalos Pereira, S.Pisano, O.Pogorelko, S.Pozdniakov, J.W.Price, G.Ricco, M.Ripani, B.G.Ritchie, P.Rossi, D.Schott, R.A.Schumacher, E.Seder, Y.G.Sharabian, E.S.Smith, D.I.Sober, S.S.Stepanyan, P.Stoler, W.Tang, M.Ungaro, B.Vernarsky, M.F.Vineyard, D.P.Weygand, M.H.Wood, N.Zachariou, B.Zhao Comment on "Observation of a narrow structure in 1H(γ, K0s)X $via interference with φ-meson production"
doi: 10.1103/PhysRevC.86.069801
2000GI07 Phys.Rev. C61, 054615 (2000) R.A.Giannelli, B.G.Ritchie, J.M.Applegate, E.Beck, J.Beck, A.O.Vanderpool, C.L.Morris, M.Rawool-Sullivan, M.K.Jones, R.D.Ransome, M.Yadav, D.L.Watson, K.O.Oganesjan, E.A.Pasyuk, F.F.Guber, A.I.Reshetin Multiproton Final States in Positive Pion Absorption below the Δ(1232) Resonance NUCLEAR REACTIONS 6Li, 12C, 27Al, 58Ni, 208Pb(π+, 2p), (π+, 3p), (π+, n2p), (π+, n3p), (π+, 4p), (π+, xp), E=30-135 MeV; measured proton spectra, σ, σ(θ); deduced mass, energy dependences, quasideuteron absorption contribution.
doi: 10.1103/PhysRevC.61.054615
1998BL06 Phys.Lett. 421B, 71 (1998) K.I.Blomqvist, W.U.Boeglin, R.Bohm, M.Distler, R.Edelhoff, J.Friedrich, R.Geiges, M.K.Jones, M.Kahrau, M.Korn, H.Kramer, K.W.Krygier, V.Kunde, M.Kuss, A.Liesenfeld, K.Merle, C.L.Morris, R.Neuhausen, E.A.J.M.Offermann, Th.Pospischil, M.Potokar, R.D.Ransome, A.W.Richter, B.G.Ritchie, A.Rokavec, G.Rosner, J.Ryckebusch, P.Sauer, S.Schardt, B.Vodenik, A.Wagner, Th.Walcher, S.Wolf, M.K.Yadav Investigation of Short-Range Nucleon-Nucleon Correlations using the Reaction 12C(e, e'pp) in Close to 4π Geometry NUCLEAR REACTIONS 12C(e, e'2p), E=705 MeV; measured nine-fold σ(E, θ), missing momentum spectra; deduced short-range nucleon-nucleon correlations.
doi: 10.1016/S0370-2693(98)00024-0
1997OF01 Phys.Rev. C55, 1295 (1997) B.G.Ofenloch, R.A.Giannelli, B.G.Ritchie, J.M.O'Donnell, J.N.Knudson, C.L.Morris, C.M.Kormanyos, A.Saunders, J.Z.Williams, R.A.Lindgren, B.L.Clausen Pion-Nucleus Spin-Flip Strength at Low and Resonance Energies NUCLEAR REACTIONS 10B(π+, π+'), E=65 MeV; measured σ(θ). 10B deduced isovector spin-flip strength parameter, B(λ). Other data analyzed.
doi: 10.1103/PhysRevC.55.1295
1994KN01 Phys.Rev. C50, 909 (1994) J.N.Knudson, J.D.Bowman, S.I.Penttila, J.R.Comfort, J.Tinsley, B.G.Ritchie, J.Gorgen, D.Mathis, S.S.Hanna, B.King, D.Pocanic, R.A.Loveman, L.S.Fritz, N.S.Dixon Neutron Deformation in 165Ho NUCLEAR REACTIONS 165Ho(π+, π0), E=165 MeV; measured σ(E, θ), oriented, unoriented nuclei; deduced asymmetry vs θ. 165Ho deduced neutron distribution deformation features.
doi: 10.1103/PhysRevC.50.909
1994YE06 Phys.Rev. C50, 897 (1994) Y.-F.Yen, B.Brinkmoller, D.Dehnhard, M.A.Franey, S.M.Sterbenz, Y.-J.Yu, B.Berman, G.R.Burleson, K.Cranston, A.Klein, G.S.Kyle, R.Alarcon, T.Averett, J.R.Comfort, J.J.Gorgen, B.G.Ritchie, J.R.Tinsley, M.Barlett, G.W.Hoffmann, K.Johnson, C.F.Moore, M.Purcell, H.Ward, A.Williams, J.A.Faucett, S.J.Greene, J.J.Jarmer, J.A.McGill, C.L.Morris, S.I.Penttila, N.Tanaka, H.T.Fortune, E.Insko, R.Ivie, J.M.O'Donnell, D.Smith, M.A.Khandaker, S.Chakravarti Pion Elastic Scattering from Polarized 13C in the Energy Region of the P33 Resonance NUCLEAR REACTIONS 13C(π+, π+), (π-, π-), E=130-180 MeV; 13C(π+, π+), E=223 MeV; 13C(π-, π-), E=226 MeV; measured analyzing power A(y)(θ), σ(θ); deduced spin-flip transition quadrupole component role. Polarized, unpolarized target. DWIA calculations, optical, Δ-hole models.
doi: 10.1103/PhysRevC.50.897
1993HY01 Phys.Rev. C47, 1184 (1993) S.D.Hyman, D.J.Mack, P.G.Roos, H.Breuer, N.S.Chant, F.Khazaie, B.G.Ritchie, J.D.Silk, G.S.Kyle, P.A.Amaudruz, Th.S.Bauer, C.H.Q.Ingram, D.Renker, R.A.Schumacher, U.Sennhauser, W.J.Burger Energy Dependence of Two-Nucleon Pion Absorption on 16O NUCLEAR REACTIONS 16O(π+, pX), (π+, 2p), E=115, 165 MeV; measured σ(θ) vs proton momentum; deduced two-nucleon absorption σ, final state interactions role.
doi: 10.1103/PhysRevC.47.1184
1993JO11 Phys.Rev. C48, 2800 (1993) M.K.Jones, R.D.Ransome, V.R.Cupps, R.W.Fergerson, C.L.Morris, J.A.McGill, J.D.Zumbro, J.R.Comfort, B.G.Ritchie, J.R.Tinsley, P.C.Gugelot, C.F.Moore Pion Absorption Above the Δ(1232) Resonance NUCLEAR REACTIONS 12C, 58Ni, 90Zr, 118Sn, 208Pb(π+, xp), E=250-500 MeV; measured σ vs missing energy for x=2, 3; deduced total absorption σ.
doi: 10.1103/PhysRevC.48.2800
1993KO17 Phys.Rev. C48, 250 (1993) C.M.Kormanyos, R.J.Peterson, J.Applegate, J.Beck, T.D.Averett, B.G.Ritchie, C.L.Morris, J.McGill, D.S.Oakley Low-Energy Pion Scattering to 1- States in 12C NUCLEAR REACTIONS 12C(π+, π+'), (π-, π-'), E=40, 50, 65 MeV; measured σ(θ). 12C deduced level energies, Γ, sum rule strengths. DWIA analysis.
doi: 10.1103/PhysRevC.48.250
1993RI01 Phys.Rev. C47, 21 (1993) B.G.Ritchie, T.D.Averett, D.Rothenberger, J.R.Tinsley, R.C.Minehart, K.Giovanetti, L.C.Smith, G.S.Blanpied, B.M.Preedom π+ + d → p + p Below 21 MeV NUCLEAR REACTIONS 2H(π+, p), E=3.7-20.5 MeV; measured absolute σ, σ(θ); deduced p-wave strength evidence.
doi: 10.1103/PhysRevC.47.21
1993SM05 Phys.Rev. C48, R485 (1993) L.C.Smith, R.C.Minehart, O.K.Baker, D.B.Day, K.L.Giovanetti, R.Lourie, R.M.Marshall, B.Milbrath, B.G.Ritchie, R.M.Sealock, D.Tedeschi, S.T.Thornton Pion Absorption in 4He Above the Delta Resonance NUCLEAR REACTIONS 4He(π+, 2p), E=500 MeV; measured σ(θ, E); deduced quasifree two-nucleon, four-body absorption. PWIA analysis, isobar-isobar model.
doi: 10.1103/PhysRevC.48.R485
1993WA02 Phys.Rev. C47, 687 (1993) H.Ward, J.M.Applegate, N.Auerbach, J.Beck, J.Johnson, K.Koch, C.F.Moore, S.Mordechai, C.L.Morris, J.M.O'Donnell, M.Rawool-Sullivan, B.G.Ritchie, D.L.Watson, C.Whitley Systematics of the Double Isobaric Analog State Cross Section at 50 MeV NUCLEAR REACTIONS 44Ca, 56Fe, 93Nb(π+, π-), E=50 MeV; measured σ(θ, E(π)); deduced short range component of effective double charge exchange operator. 93Tc level deduced isospin mixing mechanism role in excitation.
doi: 10.1103/PhysRevC.47.687
1992JO01 Phys.Lett. 278B, 419 (1992) M.K.Jones, B.G.Ritchie, C.L.Morris, R.D.Ransome, J.A.McGill, D.L.Watson, C.F.Moore, D.Clayton, K.Pujara, I.Brown, P.Campbell Energy Dependence of the Total 12C(π+, 2p) Cross Section NUCLEAR REACTIONS 12C(π+, 2p), E=19-140 MeV; measured absorption σ(E); deduced energy dependence. Large solid angle bismuth germanate multi-element detection system.
doi: 10.1016/0370-2693(92)90578-R
1992MA09 Phys.Rev. C45, 1767 (1992) D.J.Mack, P.G.Roos, H.Breuer, N.S.Chant, S.D.Hyman, F.Khazaie, B.G.Ritchie, J.D.Silk, G.S.Kyle, P.A.Amaudruz, Th.S.Bauer, C.H.Q.Ingram, D.Renker, R.A.Schumacher, U.Sennhauser, W.J.Burger Dominance of the Two-Nucleon Mechanism in 16O(π, pp) at 115 MeV NUCLEAR REACTIONS 16O(π+, 2p), E=115 MeV; measured σ(E1, θ1, E2, θ2); deduced two-nucleon absorption σ. DWIA analysis.
doi: 10.1103/PhysRevC.45.1767
1992OD02 Nucl.Instrum.Methods Phys.Res. A317, 445 (1992) J.M.O'Donnell, J.Davis, R.A.DeHaven, E.Gray, R.Johnson, R.E.Lomax, B.J.McCloud, J.A.McGill, C.L.Morris, J.Novak, B.Rusnak, G.Tubb, J.M.Applegate, T.D.Averett, J.Beck, B.G.Ritchie, E.Haebel, D.Kiehlmann, U.Klein, M.Peiniger, P.Schafer, H.Vogel, H.Ward, C.F.Moore A Superconducting Radio-Frequency Cavity for Manipulating the Phase Space of Pion Beams at LAMPF NUCLEAR REACTIONS 93Nb(π+, π+), E=50 MeV; 12C(π+, π+'), E=50 MeV; measured spectra. Superconducting radio-frequency cavity, pion beam phase space manipulation.
doi: 10.1016/0168-9002(92)90988-G
1992RA01 Phys.Rev. C45, R509 (1992) R.D.Ransome, C.L.Morris, V.R.Cupps, R.W.Fergerson, J.A.McGill, D.L.Watson, J.D.Zumbro, B.G.Ritchie, J.R.Comfort, J.R.Tinsley, R.A.Loveman, S.Dawson, A.Green, P.C.Gugelot, C.F.Moore Pion Absorption in Heavy Nuclei NUCLEAR REACTIONS 6Li, 12C, 27Al, 58Ni, 118Sn, 208Pb, 238U(π+, xp), (π+, d), E=50-200 MeV; measured σ vs missing energy; deduced pion absorption mechanism. Large solid angle bismuth germanate detector array.
doi: 10.1103/PhysRevC.45.R509
1992RA11 Phys.Rev. C46, 273 (1992) R.D.Ransome, C.L.Morris, M.K.Jones, B.G.Ritchie, D.L.Watson, J.A.McGill, K.Pujara, D.B.Clayton, I.Brown, P.Campbell, C.F.Moore Pion Absorption in Light Nuclei NUCLEAR REACTIONS 6,7Li, 9Be, 10,11B, 12,13C(π+, 2p), (π+, 3p), E=50-180 MeV; measured missing mass spectra; deduced σ(E), pion absorption mechanism.
doi: 10.1103/PhysRevC.46.273
1991GO14 Phys.Rev.Lett. 66, 2193 (1991) J.J.Gorgen, J.R.Comfort, J.R.Tinsley, T.Averett, J.DeKorse, G.Franklin, B.G.Ritchie, G.Kyle, A.Klein, B.Berman, G.Burleson, K.Cranston, J.A.Faucett, J.J.Jarmer, J.N.Knudson, S.Penttila, N.Tanaka, B.Brinkmoller, D.Dehnhard, Y.-F.Yen, S.Hoibraten, H.Breuer, B.S.Flanders, M.A.Khandaker, D.L.Naples, D.Zhang, M.L.Barlett, G.W.Hoffmann, M.Purcell Analyzing Powers for Pion Charge Exchange on Polarized 13C NUCLEAR REACTIONS 13C(π+, π0), E=163 MeV; measured σ(θ), analyzing power vs θ. Polarized target.
doi: 10.1103/PhysRevLett.66.2193
1991KN01 Phys.Rev.Lett. 66, 1026 (1991) J.N.Knudson, J.D.Bowman, S.I.Penttila, J.R.Comfort, B.G.Ritchie, J.Gorgen, D.Mathis, J.Tinsley, S.S.Hanna, B.King, D.Pocanic, R.A.Loveman, L.S.Fritz, N.S.Dixon Neutron Deformation in 165Ho NUCLEAR REACTIONS 165Ho(π+, π0), E=165 MeV; measured σ(E(π0)), orientation asymmetries. 165Ho deduced neutral, charge quadrupole deformation ratio. Aligned, unaligned targets.
doi: 10.1103/PhysRevLett.66.1026
1991LI35 Phys.Rev. C44, 2413 (1991) R.A.Lindgren, B.L.Clausen, G.S.Blanpied, J.Hernandez, C.S.Mishra, W.K.Mize, C.S.Whisnant, B.G.Ritchie, C.L.Morris, S.J.Seestrom-Morris, C.F.Moore, P.A.Seidl, B.H.Wildenthal, R.Gilman, J.A.Carr Pion Scattering to 6- Stretched States in 24Mg and 26Mg NUCLEAR REACTIONS 26,24Mg(π+, π+'), (π-, π-'), E=116-180 MeV; measured pion spectra, σ(θ). 26,24Mg levels deduced stretched configuration isoscalar, isovector strength.
doi: 10.1103/PhysRevC.44.2413
1991RI06 Phys.Rev. C44, 533 (1991) Parametrization of Total and Differential Cross Sections for πd → pp Below 1 GeV NUCLEAR REACTIONS 2H(π, 2p), E < 1 GeV; analyzed σ(E), σ(θ); deduced model parameters.
doi: 10.1103/PhysRevC.44.533
1991YE01 Phys.Rev.Lett. 66, 1959 (1991) Y.-F.Yen, B.Brinkmoller, D.Dehnhard, S.M.Sterbenz, Y.-J.Yu, B.Berman, G.R.Burleson, K.Cranston, A.Klein, G.S.Kyle, R.Alarcon, T.Averett, J.R.Comfort, J.J.Gorgen, B.G.Ritchie, J.R.Tinsley, M.Barlett, G.W.Hoffmann, K.Johnson, C.F.Moore, M.Purcell, H.Ward, A.Williams, J.A.Faucett, S.J.Greene, J.J.Jarmer, J.A.McGill, C.L.Morris, S.Penttila, N.Tanaka, H.T.Fortune, E.Insko, R.Ivie, J.M.O'Donnell, D.Smith, M.A.Khandaker, S.Chakravarti Asymmetry Measurement of Pion Elastic Scattering from Polarized 13C in the Energy Region of the P33 Resonance NUCLEAR REACTIONS 13C(π+, π+), (π-, π-), E=132-226 MeV; measured analyzing power vs θ. Polarized target.
doi: 10.1103/PhysRevLett.66.1959
1990BL04 Phys.Rev. C41, 1625 (1990) G.S.Blanpied, J.Hernandez, C.S.Mishra, W.K.Mize, C.S.Whisnant, B.G.Ritchie, C.L.Morris, S.J.Seestrom-Morris, C.F.Moore, P.A.Seidl, R.A.Lindgren, B.H.Wildenthal, R.Gilman Pion Elastic and Inelastic Scattering from 24Mg and 26Mg NUCLEAR REACTIONS 26,24Mg(π+, π+'), (π-, π-'), E=150, 180 MeV; measured σ(θ), σ(E(π)). 26,24Mg levels deduced deformation parameters, neutron, proton matrix elements.
doi: 10.1103/PhysRevC.41.1625
1990BU08 Phys.Rev. C41, 2215 (1990) W.J.Burger, E.Beise, S.Gilad, R.P.Redwine, P.G.Roos, N.S.Chant, H.Breuer, G.Ciangaru, J.D.Silk, G.S.Blanpied, B.M.Preedom, B.G.Ritchie, M.Blecher, K.Gotow, D.M.Lee, H.Ziock Reaction 58Ni(π+, pp) at Tπ+ = 160 MeV NUCLEAR REACTIONS 58Ni(π+, 2p), E=160 MeV; 58Ni(π-, 2p), E not given; measured σ(θ1, θ2); deduced pion absorption mechanism.
doi: 10.1103/PhysRevC.41.2215
1990HY01 Phys.Rev. C41, R409 (1990) S.D.Hyman, D.J.Mack, H.Breuer, N.S.Chant, F.Khazaie, B.G.Ritchie, P.G.Roos, J.D.Silk, P.-A.Amaudruz, Th.S.Bauer, C.H.Q.Ingram, G.S.Kyle, D.Renker, R.A.Schumacher, U.Sennhauser, W.J.Burger 16O(π+, 2p) Reaction at 165 MeV NUCLEAR REACTIONS 16O(π+, 2p), E=165 MeV; measured σ(θp1, θp2, Ep1, Ep2), pp-coin; deduced total absorption σ. DWIA, phase space analyses.
doi: 10.1103/PhysRevC.41.R409
1990RA05 Phys.Rev.Lett. 64, 372 (1990) R.D.Ransome, V.R.Cupps, S.Dawson, R.W.Fergerson, A.Green, C.L.Morris, J.A.McGill, J.R.Comfort, B.G.Ritchie, J.Tinsley, J.D.Zumbro, R.A.Loveman, P.C.Gugelot, D.L.Watson, C.F.Moore Charged-Particle Multiplicities following Pion Absorption on 6Li NUCLEAR REACTIONS 6Li(π+, X), E=150 MeV; measured charged particle spectra following pion absorption; deduced multi-proton emission σ.
doi: 10.1103/PhysRevLett.64.372
1990RA20 Phys.Rev. C42, 1500 (1990) R.D.Ransome, V.R.Cupps, S.Dawson, R.W.Fergerson, A.Green, C.L.Morris, J.A.McGill, J.R.Comfort, B.G.Ritchie, J.R.Tinsley, J.D.Zumbro, R.A.Loveman, P.C.Gugelot, D.L.Watson, C.F.Moore Systematics of Pion Absorption on 6Li NUCLEAR REACTIONS 6Li(π+, 2pX), E=50-200 MeV; measured missing energy distributions, σ(θ) for 2p, 2pn, 3p, 2pd final states; deduced pion absorption mechanism.
doi: 10.1103/PhysRevC.42.1500
1990RI04 Phys.Rev. C41, 1668 (1990) B.G.Ritchie, J.A.Escalante, B.M.Preedom, G.S.Adams, G.S.Blanpied, C.-S.Mishra, C.S.Whisnant, J.H.Mitchell, R.J.Peterson, R.L.Boudrie, D.H.Wright 50 MeV π+ and π- Scattering from 12C NUCLEAR REACTIONS 12C(π+, π+), (π-, π-), E=50 MeV; measured σ(θ). Model analysis.
doi: 10.1103/PhysRevC.41.1668
1989WH01 Phys.Rev. C39, 1935 (1989) C.S.Whisnant, G.S.Adams, J.A.Escalante, C.S.Mishra, M.Al-Solami, B.M.Preedom, B.G.Ritchie, D.H.Wright Coupled Channels Analysis of Positive Pion Inelastic Scattering from 28Si at 50 MeV NUCLEAR REACTIONS 28Si(π+, π+'), (π+, π+), E=50 MeV; measured σ(θ). 28Si levels deduced deformation parameters β2, β4. Coupled channels, realistic, phenomenological optical potential analysis.
doi: 10.1103/PhysRevC.39.1935
1988BL04 Phys.Rev. C37, 1304 (1988) G.S.Blanpied, B.G.Ritchie, M.L.Barlett, R.W.Fergerson, J.A.McGill, B.H.Wildenthal Elastic and Inelastic Scattering of 0.8 GeV Protons from 40Ar NUCLEAR REACTIONS 40Ar(p, p), (p, p'), E=0.8 GeV; measured σ(θ); deduced optical model parameters. 40Ar levels deduced deformation parameters. Collective model transition densities.
doi: 10.1103/PhysRevC.37.1304
1988BL08 Phys.Rev. C37, 1987 (1988) G.S.Blanpied, B.G.Ritchie, M.L.Barlett, G.W.Hoffmann, J.A.McGill, E.C.Milner, K.W.Jones, S.K.Nanda, R.de Swiniarski Elastic and Inelastic Scattering of 0.8 GeV Polarized Protons from 24Mg and 26Mg NUCLEAR REACTIONS 24,26Mg(polarized p, p), (polarized p, p'), E=800 MeV; measured σ(θ), analyzing power vs θ. 24,26Mg deduced levels, L, deformation lengths, β(l).
doi: 10.1103/PhysRevC.37.1987
1988BL13 Phys.Rev. C38, 2180 (1988) G.S.Blanpied, B.G.Ritchie, M.L.Barlett, R.W.Fergerson, G.W.Hoffmann, J.A.McGill, B.H.Wildenthal Elastic and Inelastic Scattering of 0.8 GeV Protons from 20Ne and 22Ne NUCLEAR REACTIONS 20,22Ne(p, p), (p, p'), E=0.8 GeV; measured σ(Ep), σ(θ). 22,20Ne levels deduced multipole moments, deformation lengths.
doi: 10.1103/PhysRevC.38.2180
1988MI02 Phys.Rev. C37, 710 (1988) J.H.Mitchell, J.T.Brack, R.J.Peterson, R.A.Ristinen, J.L.Ullmann, R.L.Boudrie, B.G.Ritchie, J.Escalante Inelastic Pion Scattering from 13C at 65 MeV NUCLEAR REACTIONS 13C(π+, π+), (π+, π+'), (π-, π-), (π-, π-'), E=65 MeV; measured σ(θ). 13C levels deduced deformation lengths, σ(π-)/σ(π+) enhancement features; deduced deformation length. Comparison with DWIA calculations with rho-squared medium corrections.
doi: 10.1103/PhysRevC.37.710
1988MI14 Phys.Rev. C38, 1316 (1988) C.S.Mishra, B.Fick, M.Blecher, W.Burger, R.L.Burman, G.Ciangaru, J.Escalante, K.Gotow, M.V.Hynes, B.M.Preedom, B.G.Ritchie, C.S.Whisnant, D.H.Wright Elastic Scattering of 50 MeV π± from 58Ni, 60Ni, and 64Ni NUCLEAR REACTIONS 58,60,64Ni(π+, π+), (π-, π-), E=50 MeV; measured σ(θ); deduced projectile dependence.
doi: 10.1103/PhysRevC.38.1316
1988RI03 Phys.Rev. C37, 1347 (1988) B.G.Ritchie, J.A.Escalante, G.S.Adams, M.Al-Solami, N.Lasheen, G.Pignault, B.M.Preedom, C.S.Whisnant, J.H.Mitchell, R.J.Peterson, R.L.Boudrie, D.H.Wright 50 MeV Pion Inelastic Scattering to the 1+ Doublet in 12C NUCLEAR REACTIONS 12C(π+, π+'), (π-, π-'), E=50 MeV; measured missing mass spectra, σ(θ). 12C deduced 1+ doublet excitation σ ratio anomaly nature.
doi: 10.1103/PhysRevC.37.1347
1988WR01 Phys.Rev. C37, 1155 (1988) D.H.Wright, M.Blecher, B.G.Ritchie, D.Rothenberger, R.L.Burman, Z.Weinfeld, J.A.Escalante, C.S.Mishra, C.S.Whisnant Elastic Scattering of 19.5 and 30 MeV Positive and Negative Pions from 40Ca NUCLEAR REACTIONS 40Ca(π+, π+), (π-, π-), E=19.5, 30 MeV; measured σ(θ). Optical model analysis.
doi: 10.1103/PhysRevC.37.1155
1988ZE01 Phys.Rev. C38, 2251 (1988) B.Zeidman, D.F.Geesaman, P.Zupranski, R.E.Segel, G.C.Morrison, C.Olmer, G.R.Burleson, S.J.Greene, R.L.Boudrie, C.L.Morris, L.W.Swenson, G.S.Blanpied, B.G.Ritchie, C.L.H.Johnstone Inelastic Scattering of Pions by 10B NUCLEAR REACTIONS 10B(π+, π+), (π+, π+'), E=162 MeV; measured σ(θ). 10B deduced levels, J, π, stretched configurations, B(λ).
doi: 10.1103/PhysRevC.38.2251
1987BL07 Phys.Rev. C35, 1567 (1987) G.S.Blanpied, C.S.Mishra, G.S.Adams, B.M.Preedom, C.S.Whisnant, J.-P.Egger, C.L.Morris, H.Breuer, N.S.Chant, B.G.Ritchie, B.H.Wildenthal, B.Hoistad, B.A.Brown (π±, p) Reactions at Low Excitation Energy NUCLEAR REACTIONS 24Mg, 27Al, 40Ca, 58Ni(π+, p), (π-, p), E=120 MeV; 12C(π-, p), E=145 MeV; measured σ(θ(π), E(π)); deduced σ(π+)/σ(π-), pion absorption mechanism.
doi: 10.1103/PhysRevC.35.1567
1987KN02 Phys.Rev. C35, 1382 (1987) J.N.Knudson, J.R.Comfort, R.A.Gianelli, B.G.Ritchie, D.Rothenberger, D.Pocanic, S.S.Hanna, J.D.Bowman, H.W.Baer, A.G.Bergmann, P.A.Heusi, F.Irom, C.J.Seftor, S.Hoibraten, R.A.Loveman, S.H.Rokni, H.Crannell, D.I.Sober, W.J.Fickinger, H.Marshak Excitation of the Isobaric Analog State of 165Ho Pion Single-Charge Exchange NUCLEAR REACTIONS 165Ho(π+, π0), E=98, 163.2, 228.3 MeV; measured π0 yield, θ=4°-6°. 120Sn(π+, π0), E=98-165 MeV; analyzed data; deduced reaction systematics vs mass. 165Er deduced IAS excitation σ.
doi: 10.1103/PhysRevC.35.1382
1987WR01 Phys.Rev. C35, 2258 (1987) D.H.Wright, M.Blecher, K.Masutani, R.Seki, R.L.Boudrie, R.L.Burman, M.J.Leitch, M.Alsolami, G.Blanpied, J.A.Escalante, C.S.Mishra, G.Pignault, B.M.Preedom, C.S.Whisnant, B.G.Ritchie Indication of Pionic-Atom Anomalies in Pion-Nucleus Elastic Scattering NUCLEAR REACTIONS 58Ni(π+, π+), (π-, π-), E=30 MeV; measured σ(θ); deduced pion-atom anomalies. Clamshell spectrometer.
doi: 10.1103/PhysRevC.35.2258
1987WR04 Phys.Rev. C36, 1472 (1987) D.H.Wright, M.Blecher, B.G.Ritchie, R.L.Boudrie, R.L.Burman, M.J.Leitch, M.Alsolami, G.S.Blanpied, J.A.Escalante, C.S.Mishra, G.Pignault, B.M.Preedom, C.S.Whisnant Elastic Scattering of 30 MeV Positive and Negative Pions from Nickel Isotopes NUCLEAR REACTIONS 58,60,64Ni(π-, π-), (π+, π+), E=30 MeV; measured σ(θ); deduced isotope effect reaction dependence. Optical model.
doi: 10.1103/PhysRevC.36.1472
1987WR05 Phys.Rev. C36, 2139 (1987) D.H.Wright, M.Blecher, R.L.Boudrie, R.L.Burman, M.J.Leitch, B.G.Ritchie, D.Rothenberger, Z.Weinfeld, M.Alsolami, G.Blanpied, J.A.Escalante, C.S.Mishra, G.Pignault, B.M.Preedom, C.S.Whisnant Elastic Scattering of 19.5 and 30 MeV Negative Pions from 12C NUCLEAR REACTIONS 12C(π-, π-), E=19.5, 30 MeV; measured σ(θ); deduced model parameters.
doi: 10.1103/PhysRevC.36.2139
1986BL03 Phys.Rev. C33, 1527 (1986) G.S.Blanpied, C.S.Mishra, B.G.Ritchie Multipole Moments for 12C from Coupled Channels Analysis of 0.8 and 1.0 GeV Proton Scattering NUCLEAR REACTIONS 12C(p, p'), (polarized p, p'), E=0.8, 1.04 GeV; analyzed σ(θ), analyzing power vs θ; deduced potential parameters. 12C levels deduced M(E2), M(E4). Coupled-channels model.
doi: 10.1103/PhysRevC.33.1527
1986BU06 Phys.Rev.Lett. 57, 58 (1986) W.J.Burger, E.Beise, S.Gilad, R.P.Redwine, P.G.Roos, N.S.Chant, H.Breuer, G.Ciangaru, J.D.Silk, G.S.Blanpied, B.M.Preedom, B.G.Ritchie, M.Blecher, K.Gotow, D.M.Lee, H.Ziock Reaction 58Ni(π+, 2p) at 160 MeV NUCLEAR REACTIONS 58Ni(π+, 2p), E=160 MeV; measured σ(θ1, θ2) vs excitation; deduced pion absorption mechanism.
doi: 10.1103/PhysRevLett.57.58
1986FI12 Phys.Rev. C34, 643 (1986) B.Fick, M.Blecher, K.Gotow, D.Wright, R.L.Boudrie, R.L.Burman, D.Mack, B.G.Ritchie, P.G.Roos, J.A.Escalante, C.S.Mishra, B.M.Preedom, C.S.Whisnant Elastic Scattering of 65 MeV Positive and Negative Pions from Nickel Isotopes NUCLEAR REACTIONS 58,60,64Ni(π+, π+), (π-, π-), E=65 MeV; measured σ(θ); deduced p-wave Coulomb-nuclear interference effect role. Magnetic spectrometer. Optical model.
doi: 10.1103/PhysRevC.34.643
1985BL22 Phys.Rev. C32, 2152 (1985) G.S.Blanpied, B.G.Ritchie, M.L.Barlett, G.W.Hoffmann, J.A.McGill, M.A.Franey, M.Gazzaly Elastic Scattering of 0.8 GeV Protons from the Non-Zero-Spin Nuclei 13C and 14N NUCLEAR REACTIONS 12,13C, 14N(p, p), (polarized p, p), E=0.8 GeV; measured σ(θ), analyzing power vs θ; deduced optical potential parameters.
doi: 10.1103/PhysRevC.32.2152
1985MI16 Phys.Rev. C32, 995 (1985) C.S.Mishra, B.M.Preedom, B.G.Ritchie, R.S.Moore, M.Blecher, K.Gotow, R.L.Burman, M.V.Hynes, E.Piasetzky, N.S.Chant, P.G.Roos, F.E.Bertrand, T.Sjoreen, F.E.Obenshain, E.E.Gross Isospin Effect in π± 14C Elastic Scattering at 50 MeV NUCLEAR REACTIONS 14C(π+, π+), (π-, π-), E=50 MeV; measured σ(θ). 12C(π+, π+), (π-, π-), E=50 MeV; analyzed σ(θ); deduced isospin dependence, neutron, proton density equality.
doi: 10.1103/PhysRevC.32.995
1985RI04 Phys.Rev. C32, 334 (1985) B.G.Ritchie, N.S.Chant, P.G.Roos Reply to ' Role of Pion Absorption on Quasi-Deuterons in 12C(π+, 2p) ' NUCLEAR REACTIONS 12C(π+, 2p), E not given; calculated σ(θ1, θ2). Plane, distorted wave formalisms.
doi: 10.1103/PhysRevC.32.334
1984BL14 Phys.Rev. C30, 1233 (1984) G.S.Blanpied, G.A.Balchin, G.E.Langston, B.G.Ritchie, M.L.Barlett, G.W.Hoffmann, J.A.McGill, M.A.Franey, M.Gazzaly, B.H.Wildenthal Excitation of the Ground State Rotational Band in 20Ne by 0.8 GeV Protons NUCLEAR REACTIONS 20Ne(polarized p, p'), E=0.8 GeV; measured σ(θ), analyzing power vs θ, σ(Ep'); deduced potential parameters. 20Ne levels deduced β, B(λ). Coupled-channels calculation.
doi: 10.1103/PhysRevC.30.1233
1984LE01 Phys.Rev. C29, 561 (1984) M.J.Leitch, R.L.Burman, R.Carlini, S.Dam, V.Sandberg, M.Blecher, K.Gotow, R.Ng, R.Auble, F.E.Bertrand, E.E.Gross, F.E.Obenshain, J.Wu, G.S.Blanpied, B.M.Preedom, B.G.Ritchie, W.Bertozzi, M.V.Hynes, M.A.Kovash, R.P.Redwine Pion-Nucleus Elastic Scattering at 80 MeV NUCLEAR REACTIONS 12C, 40Ca, 90Zr, 208Pb(π-, π-), (π+, π+), E=80 MeV; measured σ(θ). Optical model analysis.
doi: 10.1103/PhysRevC.29.561
1984RI12 Phys.Rev. C30, 969 (1984) B.G.Ritchie, N.S.Chant, P.G.Roos Role of Pion Absorption on Quasi-Deuterons in 12C(π+, 2p) NUCLEAR REACTIONS 12C(π+, 2p), E=165 MeV; analyzed σ(θp1, θp2); deduced quasideuteron component role. DWIA, target quasideuteron pion capture.
doi: 10.1103/PhysRevC.30.969
1983BL11 Phys.Rev. C28, 2033 (1983) M.Blecher, K.Gotow, R.L.Burman, M.V.Hynes, M.J.Leitch, N.S.Chant, L.Rees, P.G.Roos, F.E.Bertrand, E.E.Gross, F.E.Obenshain, T.P.Sjoreen, G.S.Blanpied, B.M.Preedom, B.G.Ritchie Isospin Effects in π± Elastic Scattering from 12C, 13C, and 14C at 65 and 80 MeV NUCLEAR REACTIONS 12,13,14C(π+, π+), (π-, π-), E=65, 80 MeV; measured σ(θ); deduced isospin effects, pion-nucleus optical potential parameters.
doi: 10.1103/PhysRevC.28.2033
1983MI25 Phys.Lett. 131B, 26 (1983) R.A.Miskimen, A.M.Bernstein, B.Quinn, S.A.Wood, M.V.Hynes, G.S.Blanpied, B.G.Ritchie, V.R.Brown DWIA Predictions of (p, p') Data using Electromagnetically Constrained Densities NUCLEAR REACTIONS 28,30Si, 34S, 40,42Ca(polarized p, p'), E=650 MeV; measured σ(θ). 24,26Mg(polarized p, p'), E=800 MeV; analyzed σ(θ). DWIA, proton, neutron transition densities, electromagnetic constraints.
doi: 10.1016/0370-2693(83)91084-5
1983RI04 Phys.Rev. C27, 1685 (1983) B.G.Ritchie, G.S.Blanpied, R.S.Moore, B.M.Preedom, K.Gotow, R.C.Minehart, J.Boswell, G.Das, H.J.Ziock, N.S.Chant, P.G.Roos, W.J.Burger, S.Gilad, R.P.Redwine Reaction π+ + d → p + p at 65 to 140 MeV NUCLEAR REACTIONS 2H(π+, p), E=65-140 MeV; measured absolute σ(θ); deduced σ(E), reaction mechanism, resonance parameters. Legendre polynomial analysis.
doi: 10.1103/PhysRevC.27.1685
1983RI06 Phys.Lett. 125B, 128 (1983) B.G.Ritchie, R.S.Moore, B.M.Preedom, G.Das, R.C.Minehart, K.Gotow, W.J.Burger, H.J.Ziock π+p Scattering at 65 to 140 MeV NUCLEAR REACTIONS 1H(π+, π+), E=65-140 MeV; measured σ(θ). Phase shift analysis.
doi: 10.1016/0370-2693(83)91251-0
1983RI09 Phys.Rev. C28, 926 (1983) Parametrization of the Total Cross Section for πd → pp below 330 MeV NUCLEAR REACTIONS 2H(π+, p), E ≤ 330 MeV; analyzed σ(E); deduced σ(θ) normalization parameters. Least-squares fit.
doi: 10.1103/PhysRevC.28.926
1982BE32 Phys.Rev.Lett. 49, 451 (1982) A.M.Bernstein, R.A.Miskimen, B.Quinn, S.A.Wood, M.V.Hynes, G.S.Blanpied, B.G.Ritchie, V.R.Brown Determination of Relative Signs of Neutron and Proton Transition Matrix Elements: Strong cancellation observed for the 34S(O+ → 22+) transition NUCLEAR REACTIONS 34S, 42Ca(polarized p, p'), E=650 MeV; 30Si(polarized p, p'), E=650, 800 MeV; measured σ(θ). 26Mg, 30Si, 42Ca, 34S deduced neutron, proton transition matrix element relative sign.
doi: 10.1103/PhysRevLett.49.451
1982BL09 Phys.Rev. C25, 2554 (1982) M.Blecher, K.Gotow, R.Ng, R.L.Burman, R.Carlini, S.Dam, M.V.Hynes, M.J.Hynes, M.J.Leitch, V.Sandberg, R.Auble, F.E.Bertrand, E.E.Gross, F.E.Obenshain, J.Wu, G.S.Blanpied, B.M.Preedom, B.G.Ritchie, W.Bertozzi, M.A.Kovash, R.P.Redwine Pion-Nucleus Inelastic Scattering at 80 MeV NUCLEAR REACTIONS 12C, 40Ca(π+, π+'), (π-, π-'), E=80 MeV; measured σ(θ), σ(π'); deduced optical potential parameters. 40Ca deduced, level, L, GQR excitation. DWBA analysis.
doi: 10.1103/PhysRevC.25.2554
1982MO10 Phys.Lett. 113B, 16 (1982) D.M.Moltz, K.S.Toth, F.T.Avignone III, H.Noma, B.G.Ritchie, B.D.Kern Precision Mass Difference Measurements in Light Rubidium and Krypton Isotopes Utilizing Beta-Endpoints RADIOACTIVITY 77,76Rb [from 60Ni(20Ne, xnp)], 77Kr [from 77Rb decay]; measured βγ-, γγ-coin, β-endpoint energies; deduced Q(EC). 76Rb level deduced J, π. 76Kr level deduced J, π, γ-branching.
doi: 10.1016/0370-2693(82)90099-5
1981RI02 Phys.Rev. C23, 1717 (1981) B.G.Ritchie, F.T.Avignone III, H.K.Carter, R.L.Mlekodaj, E.H.Spejewski Electron Capture and Positron Decay of 206Fr and 208Fr and the Energy Levels of 206Rn and 208Rn RADIOACTIVITY 206,208Fr [from Ir(20Ne, xn), E=113-120 MeV, on-line mass separation]; measured Eγ, γγ(t), ceγ(t), Iγ. 206,208Rn deduced levels, J, π, ICC, γ-multipolarity.
doi: 10.1103/PhysRevC.23.1717
1981RI04 Phys.Rev. C23, 2342 (1981) B.G.Ritchie, K.S.Toth, H.K.Carter, R.L.Mlekodaj, E.H.Spejewski Alpha-Decay Properties of 205,206,207,208Fr: Identification of 206mFr RADIOACTIVITY 205,206,207,208Fr; measured Eγ, Iγ, Eα, Iα; deduced α-branching ratios. 206mFr deduced T1/2. 202At deduced level.
doi: 10.1103/PhysRevC.23.2342
1981RI07 Phys.Rev. C24, 552 (1981); Erratum Phys.Rev. C26, 2337 (1982) B.G.Ritchie, R.D.Edge, D.J.Malbrough, B.M.Preedom, F.E.Bertrand, E.E.Gross, F.E.Obenshain, J.R.Wu, M.Blecher, K.Gotow, R.L.Burman, R.Carlini, M.E.Hamm, M.J.Leitch, M.A.Moinester Reaction π+ + d → p + p at 20 to 65 MeV NUCLEAR REACTIONS 2H(π+, p), E=20, 25, 30, 35, 40, 45, 65 MeV; measured σ(θ); deduced σ(total). Polynomial analysis.
doi: 10.1103/PhysRevC.24.552
1979TO09 Phys.Rev. C20, 298 (1979) K.S.Toth, C.R.Bingham, H.K.Carter, B.G.Ritchie, D.C.Sousa, D.R.Zolnowski Decay of the High-Spin Isomers in 150, 151,152Ho RADIOACTIVITY 150,151,152Ho [from 144Sm(10B, xn), E=75 MeV]; measured Eγ, Iγ, γγ-coin, T1/2. 150,151,152Dy deduced levels, J, π. 152Ho; measured Iγ, Iα; deduced α-branching ratio. Mass separation.
doi: 10.1103/PhysRevC.20.298
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