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NSR database version of April 11, 2024.

Search: Author = J.Nieves

Found 96 matches.

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2023MO22      Phys.Rev. C 108, 035205 (2023)

V.Montesinos, M.Albaladejo, J.Nieves, L.Tolos

Properties of the Tcc(3875)+ and Tc-bar c-bar and their heavy-quark spin partners in nuclear matter

doi: 10.1103/PhysRevC.108.035205
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2021AL25      Phys.Rev. C 104, 035203 (2021)

M.Albaladejo, J.Nieves, L.Tolos

DD-bar* scattering and Xc1(3872) in nuclear matter

doi: 10.1103/PhysRevC.104.035203
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2020SO16      Phys.Rev. C 102, 024601 (2020)

J.E.Sobczyk, J.Nieves, F.Sanchez

Exclusive-final-state hadron observables from neutrino-nucleus multinucleon knockout

NUCLEAR REACTIONS 12C(ν, X), E=0.2-2 GeV; calculated total σ(E). 12C(ν, X), E=0.5, 1.0, 1.5 GeV; calculated differential cross sections. 12C(ν, 2p), (ν, np), E=1.5 GeV; calculated available energies and outgoing nucleons distribution for two protons and for proton-neutron final states in the primary vertex. Calculation of the two particle-two hole 2p2h and 3p3h contributions to the neutrino induced charge-current cross section using the NEUT generator. Comparison to results from MC event generators. Relevance to neutrino oscillation experiments.

doi: 10.1103/PhysRevC.102.024601
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2019SO10      Phys.Rev. C 99, 065503 (2019)

J.E.Sobczyk, N.Rocco, A.Lovato, J.Nieves

Weak production of strange and charmed ground-state baryons in nuclei

NUCLEAR REACTIONS 12C, 16O, 40Ca(ν-bar, μ+Λ), (ν-bar, μ+Σ-), (ν-bar, μ+Σ0), (ν-bar, μ+Σ+), (ν-bar, μ-Λ), E=0.5-5 GeV; calculated differential σ(E, θ) and total σ(E) for muonic neutrino beams, form factors using realistic hole spectral functions with propagation of hyperons in the nuclear medium via a Monte Carlo cascade. Implications in the analysis of experiments from SciBooNE, MicroBooNE, MINERvA and ArgoNeuT collaborations.

doi: 10.1103/PhysRevC.99.065503
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2019SO16      Phys.Rev. C 100, 035501 (2019)

J.E.Sobczyk, N.Rocco, J.Nieves

Polarization of t in quasielastic (anti)neutrino scattering: The role of spectral functions

NUCLEAR REACTIONS 16O(ν, ν), (ν-bar, ν-bar'), E=4, 6 GeV; calculated double-differential σ(θ, E) and polarization components for scattering of τ neutrino or anti-neutrino off 16O; analyzed cross sections and polarization components for the charge-current reaction, focusing on the quasielastic region where the single nucleon knock-out dominates reaction mechanism. Relevance to experiments at SHiP facility, and neutrino oscillations.

doi: 10.1103/PhysRevC.100.035501
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2018AL24      Prog.Part.Nucl.Phys. 100, 1 (2018)

L.Alvarez-Ruso, M.Sajjad Athar, M.B.Barbaro, D.Cherdack, M.E.Christy, P.Coloma, T.W.Donnelly, S.Dytman, A.de Gouvea, R.J.Hill, P.Huber, N.Jachowicz, T.Katori, A.S.Kronfeld, K.Mahn, M.Martini, J.G.Morfin, J.Nieves, G.N.Perdue, R.Petti, D.G.Richards, F.Sanchez, T.Sato, J.T.Sobczyk, G.P.Zeller

NuSTEC1 White Paper: Status and challenges of neutrino-nucleus scattering

doi: 10.1016/j.ppnp.2018.01.006
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2018SO03      Phys.Rev. C 97, 035506 (2018)

J.E.Sobczyk, N.Rocco, A.Lovato, J.Nieves

Scaling within the spectral function approach

NUCLEAR REACTIONS 12C(e, e'), at momentum transfer q=0.57-1.2 GeV; calculated nucleon-density response function, transverse, longitudinal, and nucleon-density scaling functions, nonrelativistic PWIA scaling responses using two approaches, semi-phenomenological model, and hole spectral function (SF) based on correlated basis function (CBF). Comparison with experimental data.

doi: 10.1103/PhysRevC.97.035506
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2017MI03      Phys.Rev. C 95, 035212 (2017)

K.Miyahara, T.Hyodo, M.Oka, J.Nieves, E.Oset

Theoretical study of the Ξ(1620) and Ξ(1690) resonances in Ξc → π+ MB decays

doi: 10.1103/PhysRevC.95.035212
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2017RO17      Phys.Rev. C 96, 015504 (2017)

N.Rocco, L.Alvarez-Ruso, A.Lovato, J.Nieves

Electromagnetic scaling functions within the Green's function Monte Carlo approach

NUCLEAR REACTIONS 4He, 12C(e, e'), q=300, 400, 500, 600, 700 MeV; calculated longitudinal and transverse scaling functions in the relativistic and nonrelativistic cases; deduced scaling properties of the electromagnetic response functions. Green's function Monte Carlo (GFMC) approach, with only the one-body current contribution. Comparison with experimental data. Novel interpretation of the scaling function, and role of relativistic effects.

doi: 10.1103/PhysRevC.96.015504
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2016GU19      Eur.Phys.J. A 52, 318 (2016)

F.-K.Guo, U.-G.Meissner, J.Nieves, Z.Yang

Remarks on the Pc structures and triangle singularities

doi: 10.1140/epja/i2016-16318-4
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2016LU01      Nucl.Phys. A948, 93 (2016)

M.F.M.Lutz, J.S.Lange, M.Pennington, D.Bettoni, N.Brambilla, V.Crede, S.Eidelman, A.Gillitzer, W.Gradl, C.B.Lang, V.Metag, T.Nakano, J.Nieves, S.Neubert, M.Oka, S.L.Olsen, M.Pappagallo, S.Paul, M.Pelizaus, A.Pilloni, E.Prencipe, J.Ritman, S.Ryan, Ul.Thoma, U.Uwer, W.Weise

Resonances in QCD

doi: 10.1016/j.nuclphysa.2016.01.070
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2016OS01      Nucl.Phys. A954, 371 (2016)

E.Oset, H.-X.Chen, A.Feijoo, L.-S.Geng, W.-H.Liang, D.-M.Li, J.-X.Lu, V.K.Magas, J.Nieves, A.Ramos, L.Roca, E.Wang, J.-J.Xie

Study of reactions disclosing hidden charm pentaquarks with or without strangeness

doi: 10.1016/j.nuclphysa.2016.04.038
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2014AL22      Few-Body Systems 55, 767 (2014)

C.Albertus, E.Hernandez, J.Nieves

Exclusive c → s, d Semileptonic Decays of Spin-1/2 and Spin-3/2 cb Baryons

doi: 10.1007/s00601-013-0739-5
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2014WA02      Phys.Rev. C 89, 015503 (2014)

E.Wang, L.Alvarez-Ruso, J.Nieves

Photon emission in neutral-current interactions at intermediate energies

doi: 10.1103/PhysRevC.89.015503
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2014WA52      Phys.Rev. C 90, 065203 (2014)

E.Wang, J.-J.Xie, J.Nieves

Regge signatures from CLAS Λ(1520) photoproduction data at forward angles

doi: 10.1103/PhysRevC.90.065203
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2014XI01      Phys.Rev. C 89, 015203 (2014)

J.-J.Xie, E.Wang, J.Nieves

Re-analysis of the Λ(1520) photoproduction reaction

doi: 10.1103/PhysRevC.89.015203
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2013AL04      Phys.Rev. C 87, 015503 (2013)

L.Alvarez-Ruso, J.Nieves, I.Ruiz Simo, M.Valverde, M.J.Vicente Vacas

Charged kaon production by coherent scattering of neutrinos and antineutrinos on nuclei

doi: 10.1103/PhysRevC.87.015503
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2013HI09      Nucl.Phys. A914, 482c (2013)

C.Hidalgo-Duque, J.Nieves, M.Pavon Valderrama

Heavy quark spin symmetry and SU(3)-flavour partners of the X(3872)

doi: 10.1016/j.nuclphysa.2013.01.025
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2013RO22      Nucl.Phys. A914, 488c (2013)

O.Romanets, L.Tolos, C.Garcia-Recio, J.Nieves, L.L.Salcedo, R.Timmermans

Heavy-quark spin symmetry for charmed and strange baryon resonances

doi: 10.1016/j.nuclphysa.2013.01.033
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2013TO14      Nucl.Phys. A914, 461c (2013)

L.Tolos, D.Cabrera, C.Garcia-Recio, R.Molina, J.Nieves, E.Oset, A.Ramos, O.Romanets, L.L.Salcedo

Strangeness and charm in nuclear matter

doi: 10.1016/j.nuclphysa.2013.01.018
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2012GA10      Phys.Rev. C 85, 025203 (2012)

C.Garcia-Recio, J.Nieves, L.L.Salcedo, L.Tolos

D- mesic atoms

ATOMIC PHYSICS 12C, 40Ca, 118Sn, 208Pb; calculated energy levels, widths, binding energies of anti-D mesic atoms using unitarized coupled-channel theory.

doi: 10.1103/PhysRevC.85.025203
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2011NI08      Phys.Rev. C 83, 045501 (2011)

J.Nieves, I.Ruiz Simo, M.J.Vicente Vacas

Inclusive charged-current neutrino-nucleus reactions

NUCLEAR REACTIONS 12C(ν, ν'), (ν-bar, X), E=300-1400 MeV; 16O(ν, ν'), (ν-bar, X), E=750 MeV; calculated σ, differential σ. Model based on a systematic many-body expansion of the gauge boson absorption modes that includes one-, two-, and three-body mechanisms, and the excitation of Δ isobars. Discussed CCQE MiniBooNE cross section data.

doi: 10.1103/PhysRevC.83.045501
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2010XI05      Phys.Rev. C 82, 045205 (2010)

J.-J.Xie, J.Nieves

Role of the N*(2080) resonance in the ψ(pol)p → K+Λ(1520) reaction

doi: 10.1103/PhysRevC.82.045205
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2009TO08      Phys.Rev. C 80, 065202 (2009)

L.Tolos, C.Garcia-Recio, J.Nieves

Properties of D and D* mesons in the nuclear medium

doi: 10.1103/PhysRevC.80.065202
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2007AL23      Eur.Phys.J. A 31, 691 (2007)

C.Albertus, E.Hernandez, J.Nieves, J.M.Verde-Velasco

Doubly heavy-quark baryon spectroscopy and semileptonic decay

doi: 10.1140/epja/i2006-10242-2
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2007AL24      Eur.Phys.J. A 31, 725 (2007)

C.Albertus, J.M.Flynn, E.Hernandez, J.Nieves, J.M.Verde-Velasco

Study of the semileptonic decays B → π, D → π and D → K

doi: 10.1140/epja/i2006-10247-9
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2007AL47      Eur.Phys.J. A 32, 183 (2007); Erratum Eur.Phys.J. A 36, 119 (2008)

C.Albertus, E.Hernandez, J.Nieves, J.M.Verde-Velasco

Static properties and semileptonic decays of doubly heavy baryons in a nonrelativistic quark model

doi: 10.1140/epja/i2007-10364-y
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2007GA18      Eur.Phys.J. A 31, 491 (2007)

C.Garcia-Recio, J.Nieves, L.L.Salcedo

Large-N Weinberg-Tomozawa interaction and spin-flavor symmetry

doi: 10.1140/epja/i2006-10273-7
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2007GA19      Eur.Phys.J. A 31, 499 (2007)

C.Garcia-Recio, J.Nieves, L.L.Salcedo

Resonances and the Weinberg-Tomozawa 56-baryon-35-meson interaction

doi: 10.1140/epja/i2006-10203-9
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2007GA20      Eur.Phys.J. A 31, 540 (2007)

C.Garcia-Recio, J.Nieves, L.L.Salcedo

Meson-baryon s-wave resonances with strangeness -3

doi: 10.1140/epja/i2006-10241-3
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2007HE10      Eur.Phys.J. A 31, 714 (2007)

E.Hernandez, J.Nieves, J.M.Verde-Velasco

Study of semileptonic and nonleptonic decays of the B-c meson


2006AM06      Acta Phys.Pol. B37, 2303 (2006)

J.E.Amaro, J.Nieves, M.Valverde, C.Maieron

Local Fermi gas in inclusive muon capture from nuclei

NUCLEAR REACTIONS 12C, 16O, 40Ca, 208Pb(μ-, νX), E at rest; calculated muon capture widths, finite size effects.


2006NI01      Phys.Rev. C 73, 025504 (2006)

J.Nieves, M.Valverde, M.J.Vicente Vacas

Inclusive nucleon emission induced by quasielastic neutrino-nucleus interactions

NUCLEAR REACTIONS 16O(ν, ν'X), E=200, 500 MeV; calculated σ(E). 40Ar(ν, μ+pX), (ν, μ-pX), (ν, μ+nX), (ν, μ-nX), E=500 MeV; 16O, 40Ar(ν, ν'pX), (ν, ν'nX), E=150, 500 MeV; calculated Ep, En, σ(E). 16O(ν, μ-pX), (ν, μ-nX), (ν, ν'pX), (ν, ν'nX), E=500 MeV; calculated σ(E, θ). Monte Carlo approach.

doi: 10.1103/PhysRevC.73.025504
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2006NI02      Nucl.Phys. B(Proc.Supp.) S155, 263 (2006)

J.Nieves, M.Valverde, M.J.Vicente-Vacas

Inclusive nucleon emission induced by quasi-elastic neutrino-nucleus interactions

NUCLEAR REACTIONS 40Ar(ν, μ-nX), (ν, μ-pX), (ν, μ+nX), (ν, μ+pX), E=150, 500 MeV; calculated En, Ep, final-state interaction effects.

doi: 10.1016/j.nuclphysbps.2006.02.067
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2006NI11      Acta Phys.Pol. B37, 2295 (2006)

J.Nieves, M.Valverde, M.J.Vicente Vacas

Charged and neutral current neutrino induced nucleon emission reactions

NUCLEAR REACTIONS 40Ar(ν, μ-pX), (ν-bar, μ+pX), (ν, μ-nX), (ν-bar, μ+nX), E=500 MeV; 16O, 40Ar(ν, ν'pX), (ν, ν'nX), E=150, 500 MeV; calculated En, Ep, σ(E). Monte Carlo cascade method.


2006VA09      Czech.J.Phys. 56, 527 (2006)

M.Valverde, J.Nieves, J.E.Amaro

Quasi-elastic neutrino-nucleus reactions

NUCLEAR REACTIONS 12C(ν, μ-X), (ν, e-X), E ≈ threshold; 16O(μ-, X), E=375 MeV; calculated σ(E). 16O(ν, e-X), (ν, e+X), E=220, 310, 400 MeV; calculated integrated σ. 12C, 16,18O, 23Na, 40,44Ca, 75As, 112Cd, 208Pb(μ-, X), E not given; calculated total muon capture widths.

doi: 10.1007/s10582-006-0117-3
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2006VA11      Phys.Lett. B 638, 325 (2006)

M.Valverde, J.E.Amaro, J.Nieves

Theoretical uncertainties on quasielastic charged-current neutrino-nucleus cross sections

NUCLEAR REACTIONS 12C, 16O, 40Ar(ν, μ-X), E ≈ 250-500 MeV; 12C, 16O, 40Ar(ν, eX), E ≈ 150-400 MeV; calculated quasielastic σ, σ(E), σ ratios. Full discussion of uncertainities.

doi: 10.1016/j.physletb.2006.05.053
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2006VA19      Phys.Lett. B 642, 218 (2006)

M.Valverde, J.E.Amaro, J.Nieves, C.Maieron

Nuclear effects on lepton polarization in charged-current quasielastic neutrino scattering

NUCLEAR REACTIONS 40Ar(ν, μ), E=0.5, 7.0, 10.0 GeV; calculated σ(E, θ), polarization parameters. Correlated local Fermi gas model.

doi: 10.1016/j.physletb.2006.08.087
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2005AL30      Nucl.Phys. A755, 439c (2005)

C.Albertus, J.E.Amaro, E.Hernandez, J.Nieves

A Heavy Quark Symmetry Approach to Baryons

doi: 10.1016/j.nuclphysa.2005.03.052
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2005AM08      Eur.Phys.J. A 24, 343 (2005); Erratum Eur.Phys.J. A 26, 307 (2005)

J.E.Amaro, C.Maieron, J.Nieves, M.Valverde

Equivalence between local Fermi gas and shell models in inclusive muon capture from nuclei

NUCLEAR STRUCTURE 12C, 16O, 40Ca, 208Pb; calculated particle density distributions, muon capture widths. Comparison of local Fermi gas and shell models.

NUCLEAR REACTIONS 12C, 16O, 40Ca, 208Pb(μ, X), E not given; calculated muon capture widths. Comparison of local Fermi gas and shell models.

doi: 10.1140/epja/i2005-10034-2
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2005LU10      Nucl.Phys. A754, 212c (2005)

M.F.M.Lutz, C.Garcia-Recio, E.E.Kolomeitsev, J.Nieves

Quark-mass dependence of baryon resonances

doi: 10.1016/j.nuclphysa.2005.01.037
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2005NI01      Nucl.Phys. B(Proc.Supp.) S139, 195 (2005)

J.Nieves, J.E.Amaro, M.Valverde

Nuclear Many-Body Theory of Electroweak Interactions with Nuclei at Intermediate Energies

NUCLEAR REACTIONS 12C(ν, μ-X), (ν, eX), E ≈ threshold; 16O(ν, eX), (ν, e+X), E=220, 310, 400 MeV; calculated σ. 12C, 16,18O, 23Na, 40,44Ca, 75As, 112Cd, 208Pb(μ, X), E not given; calculated muon capture widths. Comparison with data.

doi: 10.1016/j.nuclphysbps.2004.11.211
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2004AL25      Nucl.Phys. A740, 333 (2004)

C.Albertus, J.E.Amaro, E.Hernandez, J.Nieves

Charmed and bottom baryons: a variational approach based on heavy quark symmetry

doi: 10.1016/j.nuclphysa.2004.04.114
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2004NI12      Phys.Rev. D 70, 073001 (2004)

J.F.Nieves

Nucleon contribution to the induced charge of neutrinos in a matter background and magnetic field

doi: 10.1103/PhysRevD.70.073001
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2004NI15      Phys.Rev. C 70, 055503 (2004); Erratum Phys.Rev. C 72, 019902 (2005)

J.Nieves, J.E.Amaro, M.Valverde

Inclusive quasielastic charged-current neutrino-nucleus reactions

NUCLEAR REACTIONS 12C, 16O, 23Na, 40Ca, 112Cd, 208Pb(ν, μ-X), E ≈ 120-500 MeV; 12C, 16,18O, 40,44Ca, 75As, 112Cd, 208Pb(ν, eX), E ≈ 150-400 MeV; calculated quasielastic σ, σ(E). Application to neutrino oscillation experiments discussed.

doi: 10.1103/PhysRevC.70.055503
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2003AL06      Phys.Rev. C 67, 034604 (2003)

C.Albertus, J.E.Amaro, J.Nieves

Pionic decay of Λ hypernuclei in a continuum shell model

NUCLEAR STRUCTURE 12C, 28Si, 56Fe; calculated hypernucleus pionic decay widths. Continuum shell model. Comparison with data.

doi: 10.1103/PhysRevC.67.034604
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2003GA11      Phys.Rev. C 67, 047601 (2003)

C.Garcia-Recio, A.J.Melgarejo, J.Nieves

K--nucleus scattering at low and intermediate energies

NUCLEAR REACTIONS 12C, 40Ca, 208Pb(K-, X), (K-, K-), E=127-800 MeV; calculated total and elastic σ, σ(θ). Several optical potentials compared with data.

doi: 10.1103/PhysRevC.67.047601
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2003GA38      Nucl.Phys. A721, 579c (2003)

C.Garcia-Recio, J.Nieves, E.Ruiz Arriola, M.Vicente Vacas

The S01 - Λ(1405) and - Λ(1670) Resonances in Meson-Baryon Unitarized Coupled Channel Chiral Perturbation Theory

doi: 10.1016/S0375-9474(03)01127-8
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2003GA43      Eur.Phys.J. A 18, 185 (2003)

C.Garcia-Recio, J.Nieves, E.Ruiz Arriola, M.Vicente Vacas

S = -1 meson-baryon scattering in coupled-channel unitarized Chiral Perturbation Theory

doi: 10.1140/epja/i2002-10297-y
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2003NI05      Phys.Lett. B 568, 109 (2003)

J.Nieves

Renormalization of the 1S0 one-pion-exchange NN interaction in presence of derivative contact interactions

doi: 10.1016/j.physletb.2003.05.009
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2002AL20      Phys.Rev.Lett. 89, 032501 (2002)

C.Albertus, J.E.Amaro, J.Nieves

What Does the Free Space ΛΛ Interaction Predict for ΛΛ Hypernuclei ?

NUCLEAR STRUCTURE 6He, 10Be, 13B, 42Ca, 92Zr, 210Pb; calculated ΛΛ hypernuclei binding energies. Bonn-Julich potentials, RPA and short-range correlations. Comparisons with data.

doi: 10.1103/PhysRevLett.89.032501
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2002GA19      Nucl.Phys. A703, 271 (2002)

C.Garcia-Recio, J.Nieves, E.Oset, A.Ramos

Nonlocalities and Fermi Motion Corrections in K- Atoms

doi: 10.1016/S0375-9474(01)01328-8
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2002GA27      Phys.Lett. 541B, 64 (2002)

C.Garcia-Recio, J.Nieves, E.Oset

Chiral Restoration from Pionic Atoms ?

doi: 10.1016/S0370-2693(02)02189-5
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2002GA46      Phys.Lett. 550B, 47 (2002)

C.Garcia-Recio, T.Inoue, J.Nieves, E.Oset

η bound states in nuclei

NUCLEAR STRUCTURE 12C, 24Mg, 27Al, 28Si, 40Ca, 208Pb; calculated η-meson bound states energies, widths.

doi: 10.1016/S0370-2693(02)02960-X
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2001NI03      Phys.Rev. D63, 076001 (2001)

J.Nieves, E.Ruiz Arriola

Bethe-Salpeter Approach for the P33 Elastic Pion-Nucleon Scattering in Heavy Baryon Chiral Perturbation Theory

doi: 10.1103/PhysRevD.63.076001
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2001OS09      Pramana 57, 417 (2001)

E.Oset, D.Cabrera, H.C.Chiang, C.Garcia Recio, S.Hirenzaki, S.S.Kamalov, J.Nieves, Y.Okumura, A.Ramos, H.Toki, M.J.Vicente Vacas

Chiral Unitary Theory: Application to nuclear problems

doi: 10.1007/s12043-001-0050-8
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2000BA45      Nucl.Phys. A673, 335 (2000)

A.Baca, C.Garcia-Recio, J.Nieves

Deeply Bound Levels in Kaonic Atoms

ATOMIC PHYSICS, Mesic-atoms 7Li, 9Be, 10,11B, 12C, 16O, 24Mg, 27Al, 28Si, 31P, 32S, 35Cl, 59Co, 58Ni, 63Cu, 108Ag, 112Cd, 115In, 118Sn, 165Ho, Ta, 208Pb, 238U; calculated kaonic atoms level energy shifts, widths.

NUCLEAR STRUCTURE 12C, 40Ca, 208Pb; calculated deeply bound kaonic states binding energies, widths. Optical potential, chiral model.

doi: 10.1016/S0375-9474(00)00152-4
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2000GO29      Phys.Lett. 486B, 77 (2000)

A.Gomez Nicola, J.Nieves, J.R.Pelaez, E.Ruiz Arriola

Improved Unitarized Heavy Baryon Chiral Perturbation Theory for πN Scattering

doi: 10.1016/S0370-2693(00)00761-9
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2000NI08      Eur.Phys.J. A 8, 377 (2000)

J.Nieves, E.Ruiz Arriola

Error Estimates for ππ Scattering Threshold Parameters in Chiral Perturbation Theory to Two Loops

doi: 10.1007/s100530050047
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2000NI11      Nucl.Phys. A679, 57 (2000)

J.Nieves, E.Ruiz Arriola

Bethe-Salpeter Approach for Unitarized Chiral Perturbation Theory

doi: 10.1016/S0375-9474(00)00321-3
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1999CA04      Nucl.Phys. A646, 299 (1999)

J.Caro, C.Garcia-Recio, J.Nieves

Double-Λ Hypernuclei and the Nuclear Medium Effective ΛΛ Interaction

NUCLEAR STRUCTURE 6He, 10Be, 13B, 42Ca, 92Zr, 210Pb; calculated double-Λ hypernuclei binding energies, related features; deduced hyperon-hyperon interactions features.

doi: 10.1016/S0375-9474(98)00640-X
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1998CA33      Nucl.Phys. A639, 397c (1998)

J.Caro, C.Garcia-Recio, J.M.Nieves

Double-Λ Hypernuclei and the ΛΛ Interaction

NUCLEAR STRUCTURE 6He, 10Be, 13B, 42Ca, 92Zr, 210Pb; calculated ΛΛ hypernuclei binding energies. 13B, 42Ca, 92Zr, 210Pb; calculated ΛΛ hypernuclei decay widths.

doi: 10.1016/S0375-9474(98)00304-2
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1997AM04      Nucl.Phys. A623, 529 (1997)

J.E.Amaro, A.M.Lallena, J.Nieves

Radiative Pion Capture in Nuclei: A continuum shell-model approach

NUCLEAR REACTIONS 12C, 16O, 40Ca(π-, γ), E not given; analyzed γ spectra; deduced π-p → γn reaction related features, two-particle two-hole correlations role. Continuum shell model approach.

doi: 10.1016/S0375-9474(97)00187-5
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1997GI12      Nucl.Phys. A627, 543 (1997)

A.Gil, J.Nieves, E.Oset

Many-Body Approach to the Inclusive (e, e') Reaction from the Quasielastic to the Δ Excitation Region

NUCLEAR REACTIONS 1H(e, eπ+), E not given; calculated inclusive longitudinal, transverse σ, σ(θ, φ). 12C(e, e'), E=620, 680 MeV; 208Pb(e, e'), E=645 MeV; calculated σ(θ) vs momentum transfer; 12C, 40Ca(e, e'), E not given; calculated response functions; deduced reaction mechanism. Many-body approach, local density approximation. Comparisons with data.

doi: 10.1016/S0375-9474(97)00513-7
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1997GI13      Nucl.Phys. A627, 599 (1997)

A.Gil, J.Nieves, E.Oset

Inclusive (e, e'N), (e, e'NN), (e, e'π), ... Reactions in Nuclei

NUCLEAR REACTIONS 12C(e, e'p), E=460, 478, 509, 705 MeV; calculated σ(θ) vs missing mass; 12C(e, e'π+), E=705 MeV; calculated σ(θ, Eπ); 12C(e, e'pX), E=478 MeV; calculated pion associated σ(θ, Ep); deduced reaction mechanism, pion absorption related features. Comparisons with data.

doi: 10.1016/S0375-9474(97)00515-0
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1996DO24      Nucl.Phys. B(Proc.Suppl.) S48, 269 (1996)

J.C.D'Olivo, J.F.Nieves, P.B.Pal

Neutrino Effective Charge and Cerenkov Radiation

doi: 10.1016/0920-5632(96)00259-9
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1996OS08      Hyperfine Interactions 103, 285 (1996)

E.Oset, J.Nieves

Deeply Bound Pionic Atoms: The story of an ongoing race


1996OS09      Acta Phys.Pol. B27, 3361 (1996)

E.Oset, J.Nieves, J.A.Oller, M.J.Vincente-Vacas

Chiral Symmetry in the K(K-bar) and KN Systems


1995FE06      Nucl.Phys. A586, 586 (1995)

P.Fernandez de Cordoba, E.Oset, M.J.Vicente-Vacas, Yu.Ratis, J.Nieves, B.Lopez-Alvaredo, F.Gareev

Projectile Delta Excitation in Alpha-Proton Scattering

NUCLEAR REACTIONS 1H(α, α), E=4.2 GeV; calculated σ(θ), σ(θ(α), E(α)); deduced projectile Δ-excitation related features.

doi: 10.1016/0375-9474(94)00815-5
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1995GA01      Phys.Rev. C51, 237 (1995)

C.Garcia-Recio, J.Nieves, E.Oset

Pion Cloud Contribution to K+-Nucleus Scattering

NUCLEAR REACTIONS 12C(K+, K+), E=450 MeV; calculated σ(θ). 2H, 12C(K+, X), E at ≈ 400-1000 GeV/c; calculated σ ratio vs kaon momentum; deduced virtual pion cloud contribution.

doi: 10.1103/PhysRevC.51.237
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1995GA12      Nucl.Phys. A585, 353c (1995)

C.Garcia Recio, J.Nieves, E.Oset

Pion Cloud Contribution to K+-Nucleus Scattering

doi: 10.1016/0375-9474(94)00605-M
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1995OS01      Nucl.Phys. A584, 653 (1995)

E.Oset, C.Garcia-Recio, J.Nieves

Pion Cloud Contribution to the s-Wave Repulsion in Pionic Atoms

doi: 10.1016/0375-9474(94)00527-T
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1995OS02      Nucl.Phys. A585, 351c (1995)

E.Oset, J.Nieves

Pionic Decay of (Lambda) Hypernuclei

NUCLEAR STRUCTURE A=16-208; calculated host nuclei pionic decay rate, hypernuclei.

doi: 10.1016/0375-9474(94)00603-K
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1994OS09      Prog.Theor.Phys.(Kyoto), Suppl. 117, 461 (1994)

E.Oset, P.Fernandez de Cordoba, J.Nieves, A.Ramos, L.L.Salcedo

A Review on Mesonic Decay of Λ Hypernuclei

NUCLEAR STRUCTURE 16O, 40Ca, 90Zr, 138Ba, 208Pb; calculated π0, π- decay rate for these host hypernuclei.

doi: 10.1143/PTPS.117.461
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1993CA35      Nucl.Phys. A565, 797 (1993)

R.C.Carrasco, J.Nieves, E.Oset

Coherent (γ, π0) Photoproduction in a Local Approximation to the Delta-Hole Model

NUCLEAR REACTIONS 40Ca, 208Pb, 12C(γ, π0), E ≈ 150-450 MeV; calculated σ(θ) vs E. 12C(γ, π0), E=290 MeV; analyzed σ(θ). Coherent pion photoproduction, Δ-hole model, local approximation.

doi: 10.1016/0375-9474(93)90005-I
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1993FE10      Phys.Lett. 319B, 416 (1993)

P.Fernandez de Cordoba, J.Nieves, E.Oset, M.J.Vicente-Vacas

Coherent Pion Production in the (3He, t) Reaction in Nuclei

NUCLEAR REACTIONS 12C(3He, t), E=2 GeV; calculated σ(θ, E). 12C(3He, tπ+), E=2 GeV; calculated σ(θt, Et, θ(π)); deduced pion-nucleus interaction implications. Coherent pion production.

doi: 10.1016/0370-2693(93)91744-8
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1993GA27      Acta Phys.Pol. B24, 1757 (1993)

C.Garcia-Recio, J.Nieves, E.Oset

Mesonic Exchange Current Contribution to K+ Nucleus Scattering

NUCLEAR REACTIONS 40Ca(K+, K+), E=450 MeV; analyzed σ(θ). 12C(K+, X), E ≈ 200-500 MeV; analyzed σ(E); deduced pionic cloud contributions. Microscopic many body calculation.


1993HI05      Phys.Lett. 304B, 198 (1993)

S.Hirenzaki, J.Nieves, E.Oset, M.J.Vicente-Vacas

Cohrent π0 Electroproduction

NUCLEAR REACTIONS 40Ca(e, e'π0), E=400 MeV; analyzed σ(θ(π)), σ(θ(e')) vs electron momentum; deduced pion, Δ properties in nuclear medium.

doi: 10.1016/0370-2693(93)90282-M
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1993NI01      Nucl.Phys. A554, 509 (1993)

J.Nieves, E.Oset, C.Garcia-Recio

A Theoretical Approach to Pionic Atoms and the Problem of Anomalies

ATOMIC PHYSICS, Mesic-Atoms A=10-209; analyzed pionic atom data; deduced deeply bound states, widths. Semi-phenomenological potential.

doi: 10.1016/0375-9474(93)90245-S
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1993NI02      Nucl.Phys. A554, 554 (1993)

J.Nieves, E.Oset, C.Garcia-Recio

Many-Body Approach to Low-Energy Pion-Nucleus Scattering

NUCLEAR REACTIONS 40Ca, 208Pb, 12C(π+, π+), E=20-50 MeV; 12C, 40Ca, 208Pb(π-, π-), E=30, 50 MeV; 12C, 40Ca(π-, π-), E ≈ 20 MeV; calculated σ(θ). 58Ni(π+, π+), (π-, π-), E ≈ 20-40 MeV; 12C(π-, π-), (π+, π+), E ≈ 20-40 MeV; 63Cu, 27Al(π+, π+), (π-, π-), E ≈ 40-60 MeV; 197Au(π+, π+), (π-, π-), E ≈ 40-80 MeV; 208Pb(π+, π+), (π-, π-), E ≈ 20-60 MeV; calculated reaction, absorption, quasielastic σ(E). Many-body approach.

doi: 10.1016/0375-9474(93)90246-T
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1993NI03      Phys.Rev. C47, 1478 (1993)

J.Nieves, E.Oset

Pionic Decay of Lambda Hypernuclei

NUCLEAR STRUCTURE 12C, 17O, 41Ca, 91Zr, 139Ba, 209Pb; calculated hypernuclei lambda binding energy, pionic decay rates, mesonic widths. Shell model, distorted pion waves.

doi: 10.1103/PhysRevC.47.1478
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1993NI04      Nucl.Phys. A553, 595c (1993)

J.Nieves, E.Oset

Direct Production of Pionic Atoms from Radiative Trapping of Pions in Flight

NUCLEAR REACTIONS 208Pb(π-, γ), E ≤ 30 MeV; calculated σ(θ) vs pion energy; deduced reaction suitability for producing deeply bound pionic states.

doi: 10.1016/0375-9474(93)90665-K
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1993NI10      Phys.Scr. 48, 173 (1993)

J.Nieves, E.Oset

Production of Pionic Atoms with the (π-, γ) Reaction

NUCLEAR REACTIONS 208Pb(π-, γ), E=10, 20 MeV; calculated σ(θ) vs momentum; deduced relevance to deeply bound pionic states production.

doi: 10.1088/0031-8949/48/2/009
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1993NI13      Nucl.Phys. A565, 785 (1993)

J.Nieves, E.Oset, R.C.Carrasco

Deeply Bound Pionic Atoms with Resonant Compton Scattering

NUCLEAR REACTIONS 41Ca(γ, γ), E=142.6-145 MeV; 4He(γ, γ), E=142.6-145, 180 MeV; 17O(γ, γ), E=142.6-145 MeV; calculated σ(θ); deduced deeply bound pionic atoms role.

doi: 10.1016/0375-9474(93)90004-H
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1993OS03      Phys.Scr. 48, 101 (1993)

E.Oset, P.Fernandez de Cordoba, J.Nieves, M.J.Vicente-Vacas

Proton and Light Ion Induced Charge Exchange Reactions in Nuclei

NUCLEAR REACTIONS 1,2H(3He, t), E ≈ 1.5-1.8 GeV; 12C(3He, t), E ≈ 1.5-2 GeV; calculated σ(θ, E(t)). 12C(p, n), E=800 MeV; calculated coherent pion production double differential σ; deduced mechanisms causing Δ-peak shift in nuclei.

doi: 10.1088/0031-8949/48/1/017
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1993OS04      Yad.Fiz. 56, No 7, 188 (1993); Phys.Atomic Nuclei 56, 963 (1993)

E.Oset, J.Nieves, C.Garcia-Recio

Microscopic Approach to Pionic Atoms and Low-Energy Pion Scattering

NUCLEAR REACTIONS 40Ca(π+, π+), (π-, π-), E ≈ 20-50 MeV; calculated σ(θ). 58Ni, 63Cu(π+, X), (π-, X), E ≈ 20-60 MeV; calculated reaction, absorption, quasielastic σ(E). Microscopic approach.


1993ST16      Nucl.Phys. A556, 531 (1993)

U.Straub, J.Nieves, A.Faessler, E.Oset

Mesonic Decay of 5He(Lambda) with Quark-Model-Based Hypernuclear Wave Function

NUCLEAR STRUCTURE A=5; calculated 5He hypernucleus lambda decay width. Quark cluster model.

doi: 10.1016/0375-9474(93)90469-E
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1992GA16      Nucl.Phys. A547, 473 (1992)

C.Garcia-Recio, J.Nieves, E.Oset

Neutron Distributions from Pionic Atoms

NUCLEAR STRUCTURE A=10-209; analyzed pionic atoms data; deduced neutron distributions radii.

ATOMIC PHYSICS, Mesic-Atoms A=10-209; analyzed pionic atoms data; deduced neutron distributions radii.

doi: 10.1016/0375-9474(92)90034-H
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1992NI02      Nucl.Phys. A541, 687 (1992)

J.Nieves, E.Oset, M.J.Vicente-Vacas

Recoilless and Resonant Production of Double-Pion Atoms

NUCLEAR REACTIONS 208Pb(π-, pX), E=170, 250 MeV; 20Ne(π-, pX), E=209 MeV; calculated nondistorted, distorted σ(θp, Ep) for X=2π-. Other resonant (π-, X) reactions studied. Double pionic atoms, recoilless condition, resonance production.

ATOMIC PHYSICS, Mesic-Atoms 208Pb(π-, pX), E=170, 250 MeV; 20Ne(π-, pX), E=209 MeV; calculated nondistorted, distorted σ(θp, Ep) for X=2π-. Other resonant (π-, X) reactions studied. Double pionic atoms, recoilless condition, resonance production.

doi: 10.1016/0375-9474(92)90228-C
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1992NI06      Phys.Rev. C46, 158 (1992)

J.Nieves, E.Oset, H.Sarafian

Resonant Formation of Pionic Atoms with Neutron Collisions

NUCLEAR REACTIONS 41Sc, 209Bi(n, n), E not given; calculated σ(θ) for 1s pionic state. 40Ca, 208Pb(p, p), E=160 MeV; calculated σ(θ). Resonant pionic atom formation.

ATOMIC PHYSICS, Mesic-Atoms 41Sc, 209Bi(n, n), E not given; calculated σ(θ) for 1s pionic state. Resonant pionic atom formation.

doi: 10.1103/PhysRevC.46.158
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1992OS05      Phys.Rev. C46, 2406 (1992)

E.Oset, M.Khankhasayev, J.Nieves, H.Sarafian, M.J.Vicente-Vacas

Absorption Contribution to the Pion Double-Charge-Exchange Reaction

NUCLEAR REACTIONS 18O(π+, π-), E=164 MeV; 14C(π+, π-), E=50 MeV; calculated σ(θ); deduced absorption contribution.

doi: 10.1103/PhysRevC.46.2406
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1991NI02      Phys.Rev. C43, 1937 (1991)

J.Nieves, E.Oset

Production of Pionic Atoms with the (e, e') Reaction

NUCLEAR REACTIONS 41Ca, 17O, 209Pb(e, e'π-), E=200.5 MeV; calculated σ(θ, E(out)); deduced residuals pionic state excitation probability.

doi: 10.1103/PhysRevC.43.1937
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1990CH12      Nucl.Phys. A510, 573 (1990); Errata Nucl.Phys. A514, 749 (1990)

H.C.Chiang, E.Oset, R.C.Carrasco, J.Nieves, J.Navarro

Inclusive Radiative Pion Capture in Nuclei

NUCLEAR STRUCTURE A=6-209; calculated radiative pion capture widths. 6,7Li, 9Be, 10,11B, 12,13C, 14N, 16,18O, 19F, 40Ca, 209Bi; calculated radiative pion capture branching ratios. Many-body approach, Pauli blocking, medium polarization.

ATOMIC PHYSICS, Mesic-Atoms A=6-209; calculated radiative pion capture widths. 6,7Li, 9Be, 10,11B, 12,13C, 14N, 16,18O, 19F, 40Ca, 209Bi; calculated radiative pion capture branching ratios. Many-body approach, Pauli blocking, medium polarization.

doi: 10.1016/0375-9474(90)90349-Q
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1990NI06      Phys.Lett. 244B, 368 (1990)

J.Nieves, E.Oset

Production of Pionic Atoms with the (γ, π+) Reaction

NUCLEAR REACTIONS 40Ca, 208Pb(γ, π+), E=455 MeV; calculated 1s, 2p pionic state σ(θ, E(π+)).

ATOMIC PHYSICS, Mesic-Atoms 40Ca, 208Pb(γ, π+), E=455 MeV; calculated 1s, 2p pionic state σ(θ, E(π+)).

doi: 10.1016/0370-2693(90)90330-9
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1990NI07      Phys.Rev. C42, 690 (1990)

J.Nieves, E.Oset

Production of Pionic Atoms with the (π-, π+) Reaction

NUCLEAR REACTIONS 209Bi(π-, π-π+), E=175-375 MeV; calculated σ(θ, E(π+)); deduced pionic atom state production features.

doi: 10.1103/PhysRevC.42.690
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1990NI09      Nucl.Phys. A518, 617 (1990)

J.Nieves, E.Oset

Production of Pionic Atoms in (n, p) Reactions

NUCLEAR REACTIONS 208Pb(n, p), E=0.4-1 GeV; calculated σ(θp, Ep) for 1s, 2p pionic state excitations.

ATOMIC PHYSICS, Mesic-Atoms 208Pb(n, p), E=0.4-1 GeV; calculated σ(θp, Ep) for 1s, 2p pionic state excitations.

doi: 10.1016/0375-9474(90)90182-L
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