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Search: Author = P.Weber

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2002KO51      Eur.Phys.J. C 25, 353 (2002)

O.Kortner, M.P.Locher, V.E.Markushin, P.Weber, O.Wigger

Pion correlations and resonance effects in (p-bar)p annihilation to 4π0 at rest

NUCLEAR REACTIONS 1H(p-bar, 4π0), E at rest; analyzed pion correlations vs effective mass; deduced resonance effects. Dynamical models.

doi: 10.1007/s10052-002-1033-8
Citations: PlumX Metrics


1999WE14      Nucl.Phys. A655, 218c (1999)

P.Weber, for the CPLEAR Collaboration

Pion Correlations and Resonance Effects in (p-bar)p Annihilation at Rest

NUCLEAR REACTIONS 1H(p-bar, 2π+-), E at rest; analyzed two-pion correlations vs four-pion invariant mass.

doi: 10.1016/S0375-9474(99)00204-3
Citations: PlumX Metrics


1999WE15      Nucl.Phys. A655, 327c (1999)

P.Weber, for the CPLEAR Collaboration

Contribution of CPLEAR to the Physics of the Neutral-Kaon System

doi: 10.1016/S0375-9474(99)00221-3
Citations: PlumX Metrics


1997FE01      Phys.Rev. C55, 19 (1997)

A.Feltham, G.Jones, R.Olszewski, M.Pavan, M.Sevior, R.P.Trelle, P.Weber, G.J.Lolos, E.L.Mathie, Z.Papandreou, R.Rui, D.Gill, D.Healey, D.Ottewell, G.Sheffer, G.R.Smith, V.Sossi, G.Wait, P.Walden

Spin-Transfer Measurements of the πd(pol) p(pol)p Reaction Energies Spanning the Δ Resonance

NUCLEAR REACTIONS 2H(π, p), E=105-255 MeV; measured proton polarization, analyzing power, spin transfer observables. Polarized target.

doi: 10.1103/PhysRevC.55.19
Citations: PlumX Metrics


1997JA13      Phys.Lett. 414B, 237 (1997)

M.Janousch, A.Badertscher, P.F.A.Goudsmit, H.J.Leisi, E.Matsinos, P.Weber, Z.G.Zhao

Destructive Interference of s and p Waves in 180° π-p Elastic Scattering

NUCLEAR REACTIONS 1H(π-, π-), E=43.6-72 MeV; measured σ(θ); deduced destructive interference.

doi: 10.1016/S0370-2693(97)01169-6
Citations: PlumX Metrics


1995DA16      Nucl.Phys. A589, 553 (1995)

E.Daum, S.Vinzelberg, D.Gotta, H.Ullrich, G.Backenstoss, P.Weber, H.J.Weyer, M.Furic, T.Petkovic

Pion Absorption at Rest in 4He

NUCLEAR REACTIONS 4He(π-, 2n), (π-, np), (π-, nd), (π-, nt), E at rest; measured particle pairs energy, σ(θ); deduced branching ratios.

doi: 10.1016/0375-9474(95)00068-C
Citations: PlumX Metrics


1995GO03      Phys.Rev. C51, 469 (1995)

D.Gotta, M.Dorr, W.Fetscher, G.Schmidt, H.Ullrich, G.Backenstoss, M.Izycki, W.Kowald, I.Schwanner, P.Weber, H.J.Weyer

Negative Pion Absorption at Rest in 3He

NUCLEAR REACTIONS 3He(π-, nd), (π-, np), (π-, 2n), E at rest; measured (particle)(particle), (particle)(particle)(X-ray)-coin; deduced branching ratios of dn and pnn final states, reaction mechanism. Kinematically complete experiment.

doi: 10.1103/PhysRevC.51.469
Citations: PlumX Metrics


1995YE02      Phys.Rev. C52, 2526 (1995)

D.M.Yeomans, E.L.Mathie, G.M.Huber, G.J.Lolos, S.I.H.Naqvi, V.Pafilis, G.Jones, M.Sevior, R.P.Trelle, P.Weber, R.Tacik, D.Healey, D.F.Ottewell, G.R.Smith, G.Wait, H.Garcilazo, D.L.Humphrey

Analyzing Power Measurements in Pion-Deuteron Breakup at Intermediate Energies

NUCLEAR REACTIONS 2H(π+, pπ+), E=80-300 MeV; measured iT11(θ) vs proton momentum following breakup. Polarized target. Relativistic Faddeev calculations comparison.

doi: 10.1103/PhysRevC.52.2526
Citations: PlumX Metrics


1994KO06      Phys.Rev. C49, 1715 (1994)

M.Kohler, B.E.King, N.R.Stevenson, R.B.Schubank, Y.M.Shin, R.A.Ristinen, P.Amaudruz, P.P.J.Delheij, D.C.Healey, B.K.Jennings, D.F.Ottewell, G.Sheffer, G.R.Smith, G.D.Wait, J.T.Brack, A.Feltham, M.Hanna, R.R.Johnson, F.M.Rozon, V.Sossi, D.Vetterli, P.Weber, N.Grion, R.Rui, E.L.Mathie, R.Tacik, M.Yeomans, C.A.Gossett, G.J.Wagner, J.M.Lee, K.S.Chung

Vector Analyzing Power iT11 in πd Elastic Scattering at 49 MeV

NUCLEAR REACTIONS 2H(π+, π+), (π-, π-), E=49 MeV; measured iT11(θ); deduced πNP11 amplitude role. Model comparison. Dynamically polarized target, magnetic spectrometer.

doi: 10.1103/PhysRevC.49.1715
Citations: PlumX Metrics


1994ST02      Phys.Rev.Lett. 72, 973 (1994)

J.C.Stasko, B.Bassalleck, E.C.Booth, M.B.Chertok, D.Healey, R.Jacot-Guillarmod, M.A.Kovash, D.J.Mack, D.F.Measday, J.P.Miller, M.A.Moinester, D.Ottewell, M.A.Pickar, P.Weber

Radiative Decay of the Δ Resonance: Analyzing powers for π-(p(pol)) → γn

NUCLEAR REACTIONS 1H(π-, γ), E=100-250 MeV; measured radiative capture analyzing power vs θ, E. Polarized target.

doi: 10.1103/PhysRevLett.72.973
Citations: PlumX Metrics


1992BR02      Phys.Rev. C45, 698 (1992)

J.T.Brack, A.Feltham, R.R.Johnson, G.Jones, M.A.Kermani, O.Meirav, M.Pavan, M.E.Sevior, V.Sossi, D.Vetterli, P.Weber, G.R.Smith, P.A.Amaudruz, D.Healey, D.F.Ottewell, Y.S.Wu, X.Y.Chen, S.Hoibraten, M.D.Kohler, J.J.Kraushaar, R.A.Ristinen, W.R.Smythe, E.L.Mathie, D.M.Yeomans, R.Schubank, N.R.Stevenson, E.F.Gibson

Analyzing Powers for π±-13C(pol) Scattering at T(π) = 100 MeV

NUCLEAR REACTIONS 13C(π+, π+), (π-, π-), (π+, π+'), (π-, π-'), E=100 MeV; measured analyzing power. Polarized target. Model analysis.

doi: 10.1103/PhysRevC.45.698
Citations: PlumX Metrics


1992SO16      Nucl.Phys. A548, 562 (1992)

V.Sossi, M.J.Iqbal, R.R.Johnson, G.Jones, M.Pavan, F.M.Rozon, M.Sevior, D.Vetterli, P.Weber, G.Sheffer, G.R.Smith, P.Camerini, N.Grion, R.Rui, N.R.Stevenson, M.J.Vicente-Vacas

Pion-Induced Pion Production on Deuterium: A quasifree process

NUCLEAR REACTIONS 2H(π+, π-), E=280 MeV; measured σ(θ(π+), θ(π-), E(π+), E(π-)). Comparison with isobar model with Fermi motion.

doi: 10.1016/0375-9474(92)90642-W
Citations: PlumX Metrics


1992VE04      Nucl.Phys. A548, 541 (1992)

D.Vetterli, R.R.Johnson, O.Meirav, M.E.Sevior, V.Sossi, P.Weber, P.Camerini, N.Grion, R.Rui, F.M.Rozon, P.Amaudruz, D.Ottewell, G.Sheffer, G.R.Smith, N.R.Stevenson, M.J.Vicente-Vacas

π+π- Coincidence Measurement in the 4He(π+, π+π-) Reaction at T(π+) = 280 MeV

NUCLEAR REACTIONS 4He(π+, π+π-), E=280 MeV; measured σ(θπ+, θπ-, Eπ+, Eπ-); deduced σ.

doi: 10.1016/0375-9474(92)90641-V
Citations: PlumX Metrics


1991FE05      Phys.Rev.Lett. 66, 2573 (1991)

A.Feltham, R.P.Trelle, G.Jones, D.Gill, D.Healey, G.J.Lolos, E.L.Mathie, R.Olszewski, D.Ottewell, Z.Papandreou, M.Pavan, R.Rui, M.Sevior, G.R.Smith, V.Sossi, G.Wait, P.Walden, P.Weber

Spin-Transfer Measurements of the πd(pol) → p(pol)p Reaction Spanning the Δ Resonance

NUCLEAR REACTIONS 2H(π, p), E=105-255 MeV; measured polarization observables. Polarized target.

doi: 10.1103/PhysRevLett.66.2573
Citations: PlumX Metrics


1991FR04      Phys.Lett. 257B, 17 (1991)

E.Friedman, A.Goldring, R.R.Johnson, O.Meirav, D.Vetterli, P.Weber, A.Altman

Total Reaction Cross Sections for 20-30 MeV Pions and the Anomaly of Pionic Atoms

NUCLEAR REACTIONS C, Ni(π-, X), E=20, 30 MeV; C, Ni(π+, X), E=30 MeV; measured reaction σ. Different potentials in model analyses.

doi: 10.1016/0370-2693(91)90850-P
Citations: PlumX Metrics


1991WE04      Phys.Rev. C43, 1553 (1991)

P.Weber, J.McAlister, R.Olszewski, A.Feltham, M.Hanna, R.R.Johnson, M.Pavan, C.Ponting, F.M.Rozon, M.Sevior, V.Sossi, D.Vetterli, D.Humphrey, G.J.Lolos, Z.Papandreou, R.Tacik, D.Ottewell, G.Sheffer, G.R.Smith, Y.Mardor, S.May-Tal

Multinucleon Pion Absorption in the 4He(π+, ppp)n Reaction

NUCLEAR REACTIONS 4He(π+, 3p), E=165 MeV; measured σ(θp1, θp2, θp3), missing momentum distributions, energy spectra; deduced 3p emission, pion absorption mechanism.

doi: 10.1103/PhysRevC.43.1553
Citations: PlumX Metrics


1991WE14      Nucl.Phys. A534, 541 (1991)

P.Weber, G.Backenstoss, M.Izycki, R.J.Powers, P.Salvisberg, M.Steinacher, H.J.Weyer, S.Cierjacks, A.Hoffart, B.Rzehorz, H.Ullrich, D.Bosnar, M.Furic, T.Petkovic, N.Simicevic

Three-Nucleon Processes and the Total Pion Absorption Cross Section in 3He

NUCLEAR REACTIONS 3He(π+, 2p), (π-, np), (π-, nd), E=64, 119, 162, 206 MeV; measured absorption processes σ involving all three nucleons; deduced integrated σ for 3N absorption, total absorption σ. Different counter configurations.

doi: 10.1016/0375-9474(91)90461-E
Citations: PlumX Metrics


1990MA79      J.Phys.(Paris), Colloq.C-6, 383 (1990)

E.L.Mathie, D.M.Yeomans, G.M.Huber, G.J.Lolos, S.I.H.Naqvi, V.Pafilis, Z.Papandreou, A.Feltham, R.Olszewski, G.Jones, M.Pavan, M.Sevior, R.P.Trelle, P.Weber, D.Gill, D.Healey, D.F.Ottewell, G.R.Smith, G.Wait, P.Walden, R.Rui

Polarization Measurements in Pion Deuteron Breakup and Absorption

NUCLEAR REACTIONS 2H(π, πnp), E not given; measured tensor analyzing power vs proton momentum. Faddeev model analyses. Polarized target.


1990ME11      Phys.Rev. C42, 2222 (1990)

R.Meier, E.T.Boschitz, S.Ritt, R.Tacik, M.Wessler, J.A.Konter, S.Mango, D.Renker, B.van den Brandt, W.Meyer, W.Thiel, R.Mach, P.Amaudruz, R.R.Johnson, G.R.Smith, P.Weber

Pion Scattering from Polarized 15N at T(π) = 164 MeV

NUCLEAR REACTIONS 15N(π+, π+), (π+, π+'), E=164 MeV; measured σ(E(π)), σ(θ), analyzing power vs θ. Polarized 15NH3 target. Momentum space coupled-channels formalism.

doi: 10.1103/PhysRevC.42.2222
Citations: PlumX Metrics


1990ST19      Nucl.Phys. A517, 413 (1990)

M.Steinacher, G.Backenstoss, M.Izycki, P.Salvisberg, P.Weber, H.J.Weyer, A.Hoffart, B.Rzehorz, H.Ullrich, M.Dzemidzic, M.Furic, T.Petkovic

Pion Absorption in Flight on 4He

NUCLEAR REACTIONS 4He(π, X), (π, dX), (π+, X), (π-, X), E=65, 120, 165 MeV; measured σ(θ); deduced total absorption σ.

doi: 10.1016/0375-9474(90)90210-D
Citations: PlumX Metrics


1990ST24      Phys.Rev.Lett. 65, 1987 (1990)

N.R.Stevenson, R.B.Schubank, Y.M.Shin, P.Amaudruz, P.P.J.Delheij, D.C.Healey, B.K.Jennings, D.F.Ottewell, G.Sheffer, G.R.Smith, G.D.Wait, J.T.Brack, A.Feltham, M.Hanna, R.R.Johnson, F.M.Rozon, V.Sossi, D.Vetterli, P.Weber, N.Grion, R.Rui, M.Kohler, R.A.Ristinen, E.L.Mathie, R.Tacik, M.Yeomans, C.A.Gossett, G.J.Wagner

Role of the πN P11 Interaction in πd Elastic Scattering at 50 MeV

NUCLEAR REACTIONS 2H(π+, π+), E=50 MeV; measured iT11(θ); deduced πN(P11) interaction amplitude role. Dynamically polarized target.

doi: 10.1103/PhysRevLett.65.1987
Citations: PlumX Metrics


1990ST33      J.Phys.(Paris), Colloq.C-6, 391 (1990)

N.R.Stevenson, R.B.Schubank, Y.M.Shin, P.Amaudruz, P.P.J.Delheij, D.C.Healey, B.K.Jennings, D.F.Ottewell, G.Sheffer, G.R.Smith, G.D.Wait, N.Grion, R.Rui, J.T.Brack, A.Feltham, M.Hanna, R.R.Johnson, F.M.Rozon, V.Sossi, D.Vetterli, P.Weber, M.Kohler, R.A.Ristinen, E.L.Mathie, R.Tacik, M.Yeomans, C.A.Gossett, G.J.Wagner, B.E.King

Analyzing Power Measurements in πd Elastic Scattering at 50 MeV

NUCLEAR REACTIONS 2H(π, π), E=50 MeV; measured iT11(θ); deduced πN(P11) potential role.


1990TA24      Phys.Rev. C42, 1841 (1990)

R.Tacik, E.T.Boschitz, W.Gyles, M.Wessler, S.Mango, B.van den Brandt, J.A.Konter, D.R.Gill, P.Weber

Comparison of the Vector Analyzing Power iT11 for π±d Scattering at 180 MeV

NUCLEAR REACTIONS 2H(π+, π+), (π-, π-), E=180 MeV; measured vector analyzing power iT11(θ). Polarized target, magnetic spectrometer.

doi: 10.1103/PhysRevC.42.1841
Citations: PlumX Metrics


1989BA19      Phys.Lett. 222B, 7 (1989)

G.Backenstoss, M.Izycki, R.Powers, P.Salvisberg, M.Steinacher, P.Weber, H.J.Weyer, A.Hoffart, B.Rzehorz, H.Ullrich, D.Bosnar, M.Furic, T.Petkovic

What is the Mechanism for Three-Nucleon Absorption of Pions in 3He ( Question )

NUCLEAR REACTIONS 3He(π+, 2p), E=120 MeV; measured pp-coin; deduced pion absorption mechanism.

doi: 10.1016/0370-2693(89)90714-4
Citations: PlumX Metrics


1989ME07      Phys.Rev. C40, 843 (1989)

O.Meirav, E.Friedman, R.R.Johnson, R.Olszewski, P.Weber

Low Energy Pion-Nucleus Potentials from Differential and Integral Data

NUCLEAR REACTIONS Si, Ni(π+, X), (π-, X), E=50 MeV; Ni(π-, X), (π+, X), E=65 MeV; C, Ca, Zr, Pb(π+, X), (π-, X), E=80 MeV; measured reaction σ; deduced model parmeters. Analysis of other data.

doi: 10.1103/PhysRevC.40.843
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1989PO11      Phys.Rev.Lett. 63, 1792 (1989)

C.Ponting, D.A.Hutcheon, M.A.Moinester, P.L.Walden, D.R.Gill, R.R.Johnson, F.Duncan, G.Sheffer, P.Weber, V.Sossi, A.Feltham, M.Hanna, R.Olszewski, M.Pavan, F.M.Rozon, M.Sevior, D.Ashery, R.P.Trelle, H.Hahn, B.Mayer

Analyzing-Power Measurement in p(pol)n → π-pp(1S0): Pion absorption by quark clusters ( Question )

NUCLEAR REACTIONS 2H(polarized p, 2pπ-), E=400 MeV; measured analyzing power vs (θ(π)); deduced nucleon-nucleon interaction short range component role.

doi: 10.1103/PhysRevLett.63.1792
Citations: PlumX Metrics


1989SE12      Phys.Rev. C40, 2780 (1989)

M.E.Sevior, A.Feltham, P.Weber, G.R.Smith, D.R.Gill, D.Healey, D.Ottewell, G.D.Wait, J.T.Brack, M.Kohler, J.J.Kraushaar, D.Oakley, R.J.Peterson, R.A.Ristinen, E.L.Mathie, N.R.Stevenson, R.B.Schubank, E.Gibson, R.Arndt

Analyzing Power in π±p(pol) Elastic Scattering from T(π) = 98 to 263 MeV

NUCLEAR REACTIONS 1H(π+, π+), (π-, π-), E=98-263 MeV; measured analyzing power vs θ; deduced πp phase shifts. Polarized target.

doi: 10.1103/PhysRevC.40.2780
Citations: PlumX Metrics


1989ST03      Phys.Lett. 219B, 237 (1989)

S.Stanislaus, D.S.Armstrong, D.F.Measday, P.Weber, M.Harston

Search for T = 2 Dibaryons via π-d → γX

NUCLEAR REACTIONS 2H(π-, X), E at rest; measured γ-yields; deduced no T=2 dibaryon evidence.

ATOMIC PHYSICS, Mesic-Atoms 2H(π-, X), E at rest; measured γ-yields; deduced π-d mesic atom transition branching ratio limit.

doi: 10.1016/0370-2693(89)90384-5
Citations: PlumX Metrics


1989TA21      Phys.Rev.Lett. 63, 1784 (1989)

R.Tacik, E.T.Boschitz, R.Meier, S.Ritt, M.Wessler, K.Junker, J.A.Konter, S.Mango, D.Renker, B.van den Brandt, W.Meyer, W.Thiel, P.Chaumette, J.Deregel, G.Durand, J.Fabre, P.Amaudruz, R.R.Johnson, G.Smith, P.Weber, R.Mach

Spin Effects in π-Nucleus Scattering in the Region of the Δ(3, 3) Resonance

NUCLEAR REACTIONS 15N(π+, π+), (π+, π+'), E=164 MeV; 6Li(π+, π+), (π+, π+'), E=134, 164 MeV; measured σ(θ), vector, tensor analyzing power vs θ. Polarized targets.

doi: 10.1103/PhysRevLett.63.1784
Citations: PlumX Metrics


1989WE10      Nucl.Phys. A501, 765 (1989)

P.Weber, G.Backenstoss, M.Izycki, R.J.Powers, P.Salvisberg, M.Steinacher, H.J.Weyer, S.Cierjacks, A.Hoffart, H.Ullrich, M.Furic, T.Petkovic, N.Simicevic

Two-Nucleon Absorption of π+ and π- on 3He Across the Δ-Resonance Region

NUCLEAR REACTIONS 3He(π+, 2p), (π-, pn), E=64, 119, 162, 206 MeV; measured σ(θ); deduced Legendre coefficients, σ vs energy, nucleon momentum distribution in 3He.

doi: 10.1016/0375-9474(89)90160-7
Citations: PlumX Metrics


1989WE11      Phys.Lett. 230B, 31 (1989)

P.Weber, J.McAlister, R.Olszewski, A.Feltham, M.Hanna, D.Humphrey, R.R.Johnson, G.J.Lolos, Y.Mardor, S.May-Tal, D.Ottewell, Z.Papandreou, M.Pavan, C.Ponting, F.M.Rozon, M.Sevior, G.Sheffer, G.R.Smith, V.Sossi, R.Tacik, D.Vetterli

Multi-Nucleon Pion Absorption in the 4He(π+, ppp)n Reaction

NUCLEAR REACTIONS 4He(π+, 3p), E=165 MeV; measured proton triple coincidences, σ(θ); deduced pion absorption mechanism. Kinematically complete experiment.

doi: 10.1016/0370-2693(89)91648-1
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1989WE14      Phys.Lett. 233B, 281 (1989)

P.Weber, J.McAlister, R.Olszewski, A.Feltham, M.Hanna, D.Humphrey, R.R.Johnson, G.J.Lolos, Y.Mardor, S.May-Tal, D.Ottewell, Z.Papandreou, M.Pavan, C.Ponting, F.M.Rozon, M.Sevior, G.Sheffer, G.R.Smith, V.Sossi, R.Tacik, D.Vetterli

Multi-Nucleon Pion Absorption in the 4He(π+, ppp)n Reaction

NUCLEAR REACTIONS 4He(π+, 3p), E=165 MeV; measured σ(θ1, θ2, θ3); deduced pion absorption mechanism. Kinematically complete experiment.

doi: 10.1016/0370-2693(89)91310-5
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1988BA38      Phys.Rev.Lett. 61, 923 (1988)

G.Backenstoss, D.Brodbeck, M.Izycki, P.Salvisberg, M.Steinacher, P.Weber, H.J.Weyer, A.Hoffart, B.Rzehorz, H.Ullrich, D.Bosnar, M.Furic, T.Petkovic

New Pion-Absorption Modes Observed from Triple Coincidences in 4He

NUCLEAR REACTIONS 4He(π+, 3p), E at 220 MeV/c; measured σ(θ1, θ2, θ3) vs neutron momentum; deduced pion absorption modes.

doi: 10.1103/PhysRevLett.61.923
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1987BA44      Phys.Rev.Lett. 59, 767 (1987); Erratum Phys.Rev.Lett. 59, 2124 (1987)

G.Backenstoss, M.Izycki, P.Salvisberg, M.Steinacher, P.Weber, H.J.Weyer, S.Cierjacks, B.Rzehorz, H.Ullrich, M.Furic, T.Petkovic, N.Simicevic

Observation of a Quasifree Three-Nucleon-Absorption Mode of Pions in 4He

NUCLEAR REACTIONS 4He(π+, pd), (π-, nd), E at 220 MeV/c; measured σ(Ep), σ(θn); deduced reaction, pion absorption mechanisms. ΔE-E scintillation counter, kinematically complete experiment.

doi: 10.1103/PhysRevLett.59.767
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1987ST25      Helv.Phys.Acta 60, 737 (1987)

M.Steinacher, G.Backenstoss, M.Izycki, P.Salvisberg, P.Weber, H.J.Weyer, S.Cierjacks, B.Rzehorz, H.Ullrich, M.Furic, T.Petkovic, N.Simicevic

π+--Absorption an 4He

NUCLEAR REACTIONS 4He(π-, pd), (π-, nd), (π+, pd), (π+, nd), E not given; measured not abstracted; deduced pion absorption mechanism.


1987WE10      Helv.Phys.Acta 60, 736 (1987)

P.Weber, G.Backenstoss, M.Izycki, P.Salvisberg, M.Steinacher, H.J.Weyer, S.Cierjacks, H.Ullrich, M.Furic, T.Petkovic, N.Simicevic

π+--Absorption an 3He

NUCLEAR REACTIONS 3He(π+, X), (π-, X), E=65, 120, 165, 210 MeV; measured σ(θ), σ; deduced two-nulceon pion absorption mechanism.


1986BA06      Nucl.Phys. A448, 567 (1986)

G.Backenstoss, M.Izycki, W.Kowald, P.Weber, H.J.Weyer, S.Ljungfelt, U.Mankin, G.Schmidt, H.Ullrich

Measurement of the Ratio (π-3He → π0t)/(π-3He → dn) and of the Respective Partial K X-Ray Yields

NUCLEAR REACTIONS 3He(π-, π0), (π-, d), E at rest; measured pionic X-ray(particle)-coin; deduced branching ratios, partial K X-ray yields.

doi: 10.1016/0375-9474(86)90431-8
Citations: PlumX Metrics


1986WE02      Czech.J.Phys. B36, 243 (1986)

H.J.Weyer, G.Backenstoss, M.Izycki, P.Salvisberg, M.Steinacher, P.Weber, S.Cierjacks, S.Ljungfelt, H.Ullrich, M.Furic, T.Petkovic

π-Absorption on 3He

NUCLEAR REACTIONS 3He(π+, π+), (π-, π-), E ≈ resonance; measured σ(θ); deduced pion absorption mechanism.

doi: 10.1007/BF01597154
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1985BA59      Phys.Rev.Lett. 55, 2782 (1985)

G.Backenstoss, M.Izycki, P.Salvisberg, M.Steinacher, P.Weber, H.J.Weyer, S.Cierjacks, S.Ljungfelt, H.Ullrich, M.Furic, T.Petkovic

Evidence for a Direct Three-Nucleon Pion-Absorption Process

NUCLEAR REACTIONS 3He(π+, 2p), (π-, pn), E at 220 MeV/c; measured σ(θp); deduced direct three-nucleon pion absorption mechanism.

doi: 10.1103/PhysRevLett.55.2782
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1984BA13      Phys.Lett. 137B, 329 (1984)

G.Backenstoss, M.Izycki, M.Steinacher, P.Weber, H.-J.Weyer, K.Von Weymarn, S.Cierjacks, S.Ljungfelt, U.Mankin, T.Petkovic, G.Schmidt, H.Ullrich, M.Furic

Isospin Dependence of Pion Absorption on Nucleon Pairs in 3He

NUCLEAR REACTIONS 3He(π+, 2p), (π-, np), E=165 MeV; measured pp-, np-energy correlations; deduced nucleon pair pion absorption ratio, isospin dependence.

doi: 10.1016/0370-2693(84)91726-X
Citations: PlumX Metrics


1983BA59      Helv.Phys.Acta 56, 978 (1983)

G.Backenstoss, A.Huck, M.Steinmacher, P.Weber, H.J.Weyer, K.Von Weymarn, S.Ljungfelt, U.Mankin, T.Maier, H.Ullrich

Absorption im Flug von π+ und π- Mesonen an 3He

NUCLEAR REACTIONS 3He(π+, 2p), (π-, np), E=220 MeV/c; measured σ(θ1, θ2) following pion absorption.


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