Nuclear Science References (NSR)

NUCLEAR REACTIONS ¹H(γ, K⁺X), E=0.911-2.3 GeV; ¹H(e, e'K⁺X), E=2.6 GeV; measured hyperon production associated missing mass, total σ, recoil polarization.

doi: 10.1140/epja/i2002-10239-9
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2002KO10 Phys.Rev. C65, 034607 (2002)

H.Kohri, S.Ajimura, H.Hayakawa, T.Kishimoto, K.Matsuoka, S.Minami, Y.S.Miyake, T.Mori, K.Morikubo, E.Saji, A.Sakaguchi, Y.Shimizu, M.Sumihama, R.E.Chrien, M.May, P.Pile, A.Rusek, R.Sutter, P.M.Eugenio, G.Franklin, P.Khaustov, K.Paschke, B.P.Quinn, R.A.Schumacher, J.Franz, T.Fukuda, H.Noumi, H.Outa, L.Gan, L.Tang, L.Yuan, J.Nakano, T.Tamagawa, K.Tanida, R.Sawafta, H.Tamura, H.Akikawa

_Λ¹³C Hypernucleus Studied with the ¹³C(K^-, π^-γ) Reaction

NUCLEAR REACTIONS ¹³C(K^-, π^-), E at 0.93 GeV/c; measured Eγ, Iγ, pion spectra. ¹³C deduced hypernucleus level energies, spin-orbit splitting.

doi: 10.1103/PhysRevC.65.034607
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2001AH05 Phys.Rev.Lett. 87, 132504 (2001)

J.K.Ahn, S.Ajimura, H.Akikawa, B.Bassalleck, A.Berdoz, D.Carman, R.E.Chrien, C.A.Davis, P.Eugenio, H.Fischer, G.B.Franklin, J.Franz, T.Fukuda, L.Gan, H.Hotchi, A.Ichikawa, K.Imai, S.H.Kahana, P.Khaustov, T.Kishimoto, P.Koran, H.Kohri, A.Kourepin, K.Kubota, M.Landry, M.May, C.Meyer, Z.Meziani, S.Minami, T.Miyachi, T.Nagae, J.Nakano, H.Outa, K.Paschke, P.Pile, M.Prokhabatilov, B.P.Quinn, V.Rasin, A.Rusek, H.Schmitt, R.A.Schumacher, M.Sekimoto, K.Shileev, Y.Shimizu, R.Sutter, T.Tamagawa, L.Tang, K.Tanida, K.Yamamoto, L.Yuan

Production of _ΛΛ⁴H Hypernuclei

NUCLEAR REACTIONS ⁹Be(K^-, K⁺X), E at 185 MeV/c; measured pion spectra; deduced double-Λ hypernucleus production.

doi: 10.1103/PhysRevLett.87.132504
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2001AJ02 Phys.Rev.Lett. 86, 4255 (2001)

S.Ajimura, H.Hayakawa, T.Kishimoto, H.Kohri, K.Matsuoka, S.Minami, T.Mori, K.Morikubo, E.Saji, A.Sakaguchi, Y.Shimizu, M.Sumihama, R.E.Chrien, M.May, P.Pile, A.Rusek, R.Sutter, P.Eugenio, G.Franklin, P.Khaustov, K.Paschke, B.P.Quinn, R.A.Schumacher, J.Franz, T.Fukuda, H.Noumi, H.Outa, L.Gan, L.Tang, L.Yuan, H.Tamura, J.Nakano, T.Tamagawa, K.Tanida, R.Sawafta

Observation of Spin-Orbit Splitting in Λ Single-Particle States

NUCLEAR REACTIONS ¹³C(K^-, π^-), E at 0.93 GeV/c; measured Eγ, Iγ, (pion)γ-coin. ¹³C deduced hypernucleus levels spin-orbit splitting.

doi: 10.1103/PhysRevLett.86.4255
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2001LE17 Nucl.Phys. A684, 598c (2001)

L.Lee, D.E.Alburger, P.D.Barnes, B.Bassalleck, A.Berdoz, A.Biglan, T.Burger, D.Carman, R.E.Chrien, C.A.Davis, H.Fischer, G.B.Franklin, J.Franz, L.Gan, A.Ichikawa, T.Iijima, K.Imai, P.Khaustov, Y.Kondo, P.Koran, M.Landry, J.Lowe, R.Magahiz, M.May, R.McCrady, F.Merrill, C.A.Meyer, S.A.Page, K.Paschke, P.H.Pile, B.Quinn, W.D.Ramsay, A.Rusek, R.Sawafta, H.Schmitt, R.A.Schumacher, R.Stotzer, R.Sutter, F.Takeutchi, W.T.H.van Oers, K.Yamamoto, M.Yosoi, V.J.Zeps

Search for Strangeness -2 Hypernuclei

NUCLEAR REACTIONS ¹²C(K^-, K⁺X), E at 1.8 GeV/c; measured binding energy spectrum.

doi: 10.1016/S0375-9474(01)00392-X
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2001TA27 Nucl.Phys. A691, 234c (2001)

T.Tamagawa, J.K.Ahn, S.Ajimura, H.Akikawa, B.Bassalleck, A.Berdoz, D.Carman, R.E.Chrien, C.A.Davis, P.Eugenio, H.Fischer, G.B.Franklin, J.Franz, T.Fukuda, L.Gan, L.Tang, H.Hotchi, A.Ichikawa, K.Imai, P.Khaustov, T.Kishimoto, P.Koran, H.Kori, A.Kurepin, K.Kubota, M.Landry, M.May, C.Mayer, Z.Meziani, E.Meyer, S.Minami, T.Miyachi, J.Nakano, T.Nagae, H.Outa, K.Paschke, P.Pile, M.Prokhatilov, B.P.Quinn, V.Rasin, A.Rusek, H.Schmitt, R.A.Schumacher, M.Sekimoto, K.Shileev, Y.Shimizu, R.Sutter, K.Tanida, K.Yamamoto, M.Yosoi, L.Yuan

The ΞN Interaction in Quasi-Free Ξ^- Production

NUCLEAR REACTIONS ⁹Be(K^-, K⁺), E at 1.8 GeV/c; measured hyperon production associated invariant mass spectra; deduced Ξ-nucleon elastic scattering σ.

doi: 10.1016/S0375-9474(01)01035-1
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2000BB03 Phys.Rev. C62, 055203 (2000)

P.D.Barnes, G.Franklin, R.McCrady, F.Merrill, C.Meyer, B.Quinn, R.A.Schumacher, V.Zeps, N.Hamann, W.Eyrich, R.Geyer, J.Hauffe, M.Kirsch, R.A.Kraft, F.Stinzing, H.Fischer, J.Franz, E.Rossle, M.Ruh, H.Schmitt, R.Todenhagen, K.Kilian, W.Oelert, K.Rohrich, K.Sachs, T.Sefzick, B.D.Bunker, R.A.Eisenstein, P.G.Harris, D.W.Hertzog, T.D.Jones, R.L.Tayloe, T.Johansson, S.Pomp, E.Traneus

High-Statistics Measurements of the (p-bar)p → (Λ-bar)Λ and (p-bar)p → (Λ-bar)Σ⁰ + c.c. Reactions at Threshold

NUCLEAR REACTIONS ¹H(p-bar, X), E ≈ threshold; measured (Λ-bar)Λ and (Λ-bar)Σ⁰ production σ, σ(θ); deduced no near-threshold resonance structures.

doi: 10.1103/PhysRevC.62.055203
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2000SC15 Nucl.Phys. A663-664, 440c (2000)

R.A.Schumacher, for the CLAS Collaboration

Strangeness Photoproduction with CLAS at Jefferson Lab

NUCLEAR REACTIONS ¹H(γ, K⁺X), E=0.911-2.4 GeV; measured missing mass spectrum. Tagged photons.

doi: 10.1016/S0375-9474(99)00678-8
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2000TA07 Nucl.Phys. A663-664, 481c (2000)

H.Tamura, D.Abe, S.Ajimura, H.Akikawa, K.Araki, H.C.Bhang, R.E.Chrien, T.Endo, P.Eugenio, G.B.Franklin, Y.Fujii, T.Fukuda, L.Gan, O.Hashimoto, H.Hotchi, K.Imai, Y.Kakiguchi, P.Khaustov, J.H.Kim, Y.D.Kim, H.Kohri, M.May, T.Miyoshi, T.Murakami, T.Nagae, J.Nakano, H.Noumi, H.Outa, K.Ozawa, P.H.Pile, B.P.Quinn, A.Rusek, T.Saito, J.Sasao, Y.Sato, S.Satoh, R.I.Sawafta, R.A.Schumacher, M.Sekimoto, T.Takahashi, T.Tamagawa, L.Tang, K.Tanida, H.H.Xia, L.Yuan, S.H.Zhou, L.H.Zhu, X.F.Zhu

High-Resolution Hypernuclear Gamma-Ray Spectroscopy

NUCLEAR REACTIONS ⁷Li(π⁺, K⁺), E at 1.05 GeV/c; measured Eγ, Iγ. ⁷Li deduced hypernucleus transitions B(E2), B(M1). ⁹Be(K^-, π^-), E not given; measured Eγ, Iγ. ⁹Be deduced hypernucleus transitions.

doi: 10.1016/S0375-9474(99)00636-3
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1997SC32 Phys.Rev. C56, 2774 (1997)

R.A.Schumacher

Photoproduction Evidence for and Against Hidden-Strangeness States Near 2 GeV

NUCLEAR REACTIONS ¹H(γ, X), E=0.9-5.2 GeV; analyzed strangeness production σ; deduced hidden-strangeness states evidence.

doi: 10.1103/PhysRevC.56.2774
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1997ST10 Phys.Rev.Lett. 78, 3646 (1997)

R.W.Stotzer, T.Burger, P.D.Barnes, B.Bassalleck, A.R.Berdoz, M.Burger, R.E.Chrien, C.A.Davis, G.E.Diebold, H.Enyo, H.Fischer, G.B.Franklin, J.Franz, L.Gan, D.R.Gill, T.Iijima, K.Imai, P.Koran, M.Landry, L.Lee, J.Lowe, R.Magahiz, A.Masaike, R.McCrady, F.Merrill, C.A.Meyer, J.M.Nelson, K.Okada, S.A.Page, P.H.Pile, B.P.Quinn, W.D.Ramsay, E.Rossle, A.Rusek, R.Sawafta, H.Schmitt, R.A.Schumacher, R.L.Stearns, I.R.Sukaton, R.Sutter, J.J.Szymanski, F.Takeutchi, W.T.H.van Oers, D.M.Wolfe, K.Yamamoto, M.Yosoi, V.J.Zeps, R.Zybert, and the BNL E836 Collaboration

Search for the H-Dibaryon in ³He(K^-, K⁺)Hn

NUCLEAR REACTIONS ³He(K^-, K⁺), E=high; analyzed data; deduced ZZγ, Zγγ couplings.

doi: 10.1103/PhysRevLett.78.3646
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1996BA78 Phys.Rev. C54, 2831 (1996)

P.D.Barnes, G.Franklin, B.Quinn, R.A.Schumacher, V.Zeps, N.Hamann, W.Dutty, H.Fischer, J.Franz, E.Rossle, H.Schmitt, R.Todenhagen, R.von Frankenberg, K.Kilian, W.Oelert, K.Rohrich, K.Sachs, T.Sefzick, M.Ziolkowski, R.A.Eisenstein, P.G.Harris, D.W.Hertzog, S.A.Hughes, P.E.Reimer, R.L.Tayloe, W.Eyrich, R.Geyer, M.Kirsch, R.A.Kraft, F.Stinzing, T.Johansson, S.Ohlsson

Measurement of the (p-bar)p → (Λ-bar)Λ and (p-bar)p → (Σ-bar)⁰Λ + (c.c.) Reactions at 1.726 and 1.771 GeV/c

NUCLEAR REACTIONS ¹H(p-bar, X), E at 1.726, 1.771 GeV/c; measured total, differential σ, polarization, spin correlation coefficients for Σ⁰-barΛ, Λ-barΣ⁰, hyperon production.

doi: 10.1103/PhysRevC.54.2831
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1996RU06 Phys.Rev. C54, R15 (1996)

A.Rusek, B.Bassalleck, A.Berdoz, T.Burger, M.Burger, R.E.Chrien, G.E.Diebold, H.Enyo, H.Fischer, G.B.Franklin, J.Franz, T.Iijima, K.Imai, J.Lowe, R.Magahiz, A.Masaike, C.A.Meyer, R.McCrady, F.Merrill, S.Mihara, J.M.Nelson, K.Okada, P.H.Pile, B.Quinn, E.Rossle, N.Saito, R.Sawafta, H.Schmitt, R.A.Schumacher, R.L.Stearns, R.Stotzer, R.Sukaton, R.Sutter, F.Takeutchi, D.M.Wolfe, K.Yamamoto, S.Yamashita, S.Yokkaichi, V.Zeps, R.Zybert, and the E886 Collaboration

Strangelet Search and Light Nucleus Production in Relativistic Si + Pt and Au + Pt Collisions

NUCLEAR REACTIONS Pt(Si, X), E at 14.6 GeV/c/nucleon; Pt(¹⁹⁷Au, X), E at 10.8 GeV/c/nucleon; measured invariant strangelet production σ upper limits, relativistic collisions.

doi: 10.1103/PhysRevC.54.R15
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1995RU02 Nucl.Phys. A585, 59c (1995)

A.Rusek, B.Bassalleck, A.Berdoz, T.Burger, M.Burger, R.E.Chrien, G.E.Diebold, H.Enyo, H.Fischer, G.B.Franklin, J.Franz, T.Iijima, K.Imai, J.Lowe, R.Magahiz, A.Masaike, F.Merrill, C.A.Meyer, S.Mihara, J.M.Nelson, K.Okada, P.Pile, B.Quinn, E.Rossle, N.Saito, R.Sawafta, H.Schmitt, R.A.Schumacher, R.Stearns, R.Stotzer, R.Sukaton, R.Sutter, F.Takeutchi, D.M.Wolfe, K.Yamamoto, S.Yamashita, S.Yokkaichi, V.Zeps, R.Zybert

Search for Strangelets and Other Rare Objects in Au + Pt Collisions at AGS Using a Fixed-Angle Focusing Spectrometer

NUCLEAR REACTIONS Pt(¹⁹⁷Au, X), E at 10.8 GeV/c/nucleon; measured strangelet production σ upper limit, p, t, d, ^3,4,6,8He, ^6,7,8Li, ⁷Be production invariant σ. Coalescence model fits to data.

doi: 10.1016/0375-9474(94)00544-W
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1995RU09 Phys.Rev. C52, 1580 (1995)

Search for H Dibaryon-Nucleus Bound States in Relativistic Au + Pt Collisions

NUCLEAR REACTIONS Pb(¹⁹⁷Au, X), E=relativistic; measured H dibaryon, other exotic objects production σ, relativistic collisions.

doi: 10.1103/PhysRevC.52.1580
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1995SC15 Nucl.Phys. A585, 63c (1995)

R.A.Schumacher

Electromagnetic Strangeness Production at CEBAF

doi: 10.1016/0375-9474(94)00545-X
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1994SA15 Phys.Rev. C49, 3211 (1994)

N.Saito, B.Bassalleck, T.Burger, M.Burger, R.Chrien, G.E.Diebold, H.Enyo, G.Franklin, J.Franz, T.Iijima, K.Imai, J.Lowe, R.Magahiz, A.Masaike, F.Merrill, J.M.Nelson, K.Okada, P.Pile, B.Quinn, E.Rossle, A.Rusek, R.Sawafta, H.Schmitt, R.A.Schumacher, R.L.Stearns, I.Sukaton, R.Sutter, F.Takeutchi, D.M.Wolfe, S.Yokkaichi, V.Zeps, R.Zybert, and the E886 Collaboration

Composite Particle Production in Relativistic Au + Pt, Si + Pt, and p + Pt Collisions

NUCLEAR REACTIONS Pt(¹⁹⁷Au, X), E at 11.5 GeV/c/nucleon; measured d, t, ^3,4He inclusive production σ; Pt(Si, X), (p, X), E at 11.5 GeV/c/nucleon; measured composite particle production σ; deduced coalescence radii, reaction volumes. Sato-Yazaki model.

doi: 10.1103/PhysRevC.49.3211
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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
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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
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1992SC28 Nucl.Phys. A547, 143c (1992)

R.A.Schumacher

Possible Violation of the ΔI = 1/2 Rule in Non-Mesonic Hypernuclear Weak Decay

NUCLEAR STRUCTURE A=4, 5, 12; calculated nonmesonic weak decay of lambda hypernuclei; deduced no evidence for ΔI=1/2 rule violation.

doi: 10.1016/0375-9474(92)90720-5
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1991RA08 Phys.Rev.Lett. 66, 1279 (1991)

A.Rahav, J.Alster, D.Ashery, J.Lichtenstadt, I.Navon, E.Piasetzky, P.Amaudruz, M.Botje, W.Burger, C.H.Q.Ingram, R.A.Schumacher, U.Sennhauser, S.A.Wood

Measurement of the ¹²C(π, 2π) Reactions and Possible Evidence of a Double-Δ Excitation

NUCLEAR REACTIONS ¹²C(π^-, π^-π⁺), (π^-, 2π^-), E=292 MeV; measured pion spectra, σ(θ); deduced double-Δ excitation evidence.

doi: 10.1103/PhysRevLett.66.1279
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1991SO07 Nucl.Phys. A527, 371c (1991)

T.Soos, B.C.Craft, E.R.Kinney, C.Maher, J.L.Matthews, W.W.Sapp, R.A.Schumacher, R.S.Turley, R.O.Owens, G.S.Adams, A.Hegerath

An Absolute Measurement of the Differential Cross Section for the Photodisintegration of the Deuteron

NUCLEAR REACTIONS ²H(γ, p), E=60-350 MeV; measured σ(θ), σ.

doi: 10.1016/0375-9474(91)90126-Q
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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
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1988SC14 Phys.Rev. C38, 2205 (1988)

R.A.Schumacher, P.A.Amaudruz, C.H.Q.Ingram, U.Sennhauser, H.Breuer, N.S.Chant, A.E.Feldman, B.S.Flanders, F.Khazaie, D.J.Mack, P.G.Roos, J.D.Silk, G.S.Kyle

Exclusive Quasi-Deuteron Absorption of Pions in ¹⁶O and ¹⁸O at 116 MeV

NUCLEAR REACTIONS ^18,16O(π⁺, 2p), E=116 MeV; measured σ(E(2p)), σ(θ₁, θ₂), σ(θ₁, θ₂, E₁); deduced reaction mechanism.

doi: 10.1103/PhysRevC.38.2205
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1987BR17 Nucl.Phys. A469, 617 (1987)

W.Bruckner, H.Dobbeling, P.C.Gugelot, F.Guttner, H.Kneis, S.Majewski, M.Nomachi, S.Paul, B.Povh, R.D.Ransome, T.-A.Shibata, M.Treichel, Th.Walcher, P.Amaudruz, Th.Bauer, J.Domingo, R.Frey, Q.Ingram, H.Janszen, G.Kyle, D.Renker, R.A.Schumacher

π⁺ Absorption on ¹²C in the Δ(1232) Region

NUCLEAR REACTIONS ¹²C(π⁺, 3p), E at 355, 375, 405 MeV/c; measured σ(Ep, θp); deduced pion capture associated quasifree scattering resonance structure.

doi: 10.1016/0375-9474(87)90016-9
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1986SC01 Phys.Rev. C33, 50 (1986)

R.A.Schumacher, J.L.Matthews, W.W.Sapp, R.S.Turley, G.S.Adams, R.O.Owens

Two-Body Photodisintegration of ⁴He in the 100-360 MeV Region

NUCLEAR REACTIONS ⁴He(γ, n), (γ, p), E=100-360 MeV; measured σ(E, θ). Comparison with theory, meson exchange effects.

doi: 10.1103/PhysRevC.33.50
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1985TU02 Phys.Lett. 157B, 19 (1985)

R.S.Turley, E.R.Kinney, J.L.Matthews, W.W.Sapp, E.J.Scheidker, R.A.Schumacher, S.A.Wood, G.S.Adams, R.O.Owens

The ¹⁶O(γ, p₀)¹⁵N Reaction at E(γ) = 196 MeV

NUCLEAR REACTIONS ¹⁶O(γ, p), E=196 MeV; measured σ(Ep), σ(θ); deduced reaction models inadequacy.

doi: 10.1016/0370-2693(85)91203-1
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1982SC12 Phys.Rev. C25, 2269 (1982)

R.A.Schumacher, G.S.Adams, D.R.Ingham, J.L.Matthews, W.W.Sapp, R.S.Turley, R.O.Owens, B.L.Roberts

Cu(γ, p)X Reaction at Eγ = 150 and 300 MeV

NUCLEAR REACTIONS Cu(γ, p), E=150, 300 MeV bremsstrahlung; measured σ(Ep, θ); deduced reaction mechanism, participating nucleon number. Inclusive reactions, intranuclear cascade analyses.

doi: 10.1103/PhysRevC.25.2269
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