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NSR database version of April 11, 2024.

Search: Author = M.Gorchtein

Found 33 matches.

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2023GO12      Universe 9, 422 (2023)

M.Gorchtein, C.-Y.Seng

The Standard Model Theory of Neutron Beta Decay

RADIOACTIVITY 1NN(β-); analyzed available data; deduced the recent developments in the electroweak radiative corrections.

doi: 10.3390/universe9090422
Citations: PlumX Metrics

2023SE04      Phys.Rev. C 107, 035503 (2023)

C.-Y.Seng, M.Gorchtein

Dispersive formalism for the nuclear structure correction δNS to the β decay rate

doi: 10.1103/PhysRevC.107.035503
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2021AC02      Phys.Rev. C 103, 024001 (2021)

B.Acharya, V.Lensky, S.Bacca, M.Gorchtein, M.Vanderhaeghen

Dispersive evaluation of the Lamb shift in muonic deuterium from chiral effective field theory

NUCLEAR REACTIONS 2H(γ, X), E<80 MeV; 2H(e-, X), E=80, 146.9, 175, 180, 222.6, 292.8 MeV; calculated deuteron photodisintegration σ(E), deuteron electrodissociation differential σ(E, θ), deuteron response functions and corresponding uncertainties up to next-to-next-to-next-to-leading order in chiral effective field theory (χEFT), longitudinal and transverse contributions. Comparison with experimental data.

NUCLEAR STRUCTURE 2H; calculated nuclear polarizability two-photon exchange corrections to the muonic deuterium (μD) Lamb shift by combining dispersion relations with ab initio approach to compute nuclear structure corrections using chiral effective field theory. Comparison with results of previous calculations.

doi: 10.1103/PhysRevC.103.024001
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2021KO22      Phys.Rev. C 103, 064316 (2021)

O.Koshchii, M.Gorchtein, X.Roca-Maza, H.Spiesberger

Beam-normal single-spin asymmetry in elastic scattering of electrons from a spin-0 nucleus

NUCLEAR REACTIONS 12C, 28Si, 40Ca, 90Zr, 208Pb(e, e), E=0.57-3 GeV; analyzed beam-normal single-spin asymmetry (BNSSA) observed in the PREX collaboration for 208Pb, called the PREX puzzle using plane-wave formalism and Compton scattering cross section data for 12C, 27Al, 49Ti, 64Cu, 109Ag and 197Au; deduced average values and corresponding theoretical uncertainties for the Compton slope parameter; predicted kinematical conditions of soon-to-be published measurements by the PREX-II, CREX, and Qweak collaborations at Jefferson Lab.

doi: 10.1103/PhysRevC.103.064316
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2020ES03      Phys.Lett. B 808, 135664 (2020)

A.Esser, M.Thiel, P.Achenbach, K.Aulenbacher, S.Aulenbacher, S.Baunack, D.Bosnar, S.Caiazza, M.Christmann, M.Dehn, M.O.Distler, L.Doria, P.Eckert, M.Gorchtein, P.Gulker, P.Herrmann, M.Hoek, S.Kegel, P.Klag, H.-J.Kreidel, M.Littich, S.Lunkenheimer, F.E.Maas, M.Makek, H.Merkel, M.Mihovilovic, J.Muller, U.Muller, J.Pochodzalla, B.S.Schlimme, R.Spreckels, V.Tioukine, C.Sfienti

Beam-normal single spin asymmetry in elastic electron scattering off 28Si and 90Zr

NUCLEAR REACTIONS 28Si, 90Zr(E, E), E=0.570 GeV; measured reaction products, Eβ, Iβ; deduced transverse asymmetries.

doi: 10.1016/j.physletb.2020.135664
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2020KO22      Phys.Rev. C 102, 022501 (2020)

O.Koshchii, J.Erler, M.Gorchtein, C.J.Horowitz, J.Piekarewicz, X.Roca-Maza, C.-Y.Seng, H.Spiesberger

Weak charge and weak radius of 12C

NUCLEAR REACTIONS 12C(e, e), E=155 MeV; calculated parity-violating (PV) asymmetry; deduced weak charge, weak radius and neutron skin of 12C nucleus. Parity-violating electron scattering (PVEC), based on model-independent assessment of the uncertainties. Relevance to experiments at the upcoming MESA facility in Mainz, to quantification of generic isospin symmetry-breaking (ISB) effects, test of unitarity of Cabibbo-Kobayashi-Maskawa (CKM) matrix, and new physics searches with superallowed β decays.

doi: 10.1103/PhysRevC.102.022501
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2019GO16      Phys.Rev.Lett. 123, 042503 (2019)


γW Box Inside Out: Nuclear Polarizabilities Distort the Beta Decay Spectrum

RADIOACTIVITY 10C, 14O, 22Mg, 34Ar, 38Ca, 26Al, 34Cl, 38K, 42Sc, 46V, 50Mn, 54Co, 62Ga, 74Rb(β+); calculated Q-values, the fractional effect on the decay constant obtained from the energy-dependent correction, and the respective shift in the log Ft value. Comparison with available data.

doi: 10.1103/PhysRevLett.123.042503
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2019OS04      Phys.Rev. C 100, 055203 (2019)

H.Osmanovic, M.Hadzimehmedovic, R.Omerovic, J.Stahov, M.Gorchtein, V.Kashevarov, K.Nikonov, M.Ostrick, L.Tiator, A.Svarc

Single-energy partial wave analysis for π0 photoproduction on the proton with fixed-t analyticity imposed

NUCLEAR REACTIONS 1H(γ, π0p), (polarized γ, π0p), E(cm)=1.07-1.9 GeV; analyzed experimental differential σ(E) data from A2@MAMI, DAPHNE, MAMI, CBELSA/TAPS and GRAAL collaborations; deduced electric and magnetic multipoles up to l=3. Fixed-t single energy partial-wave analysis (SE PWA) of π0 photoproduction on the world collection of data.

doi: 10.1103/PhysRevC.100.055203
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2018BE35      Eur.Phys.J. A 54, 208 (2018)

D.Becker, R.Bucoveanu, C.Grzesik, K.Imai, R.Kempf, M.Molitor, A.Tyukin, M.Zimmermann, D.Armstrong, K.Aulenbacher, S.Baunack, R.Beminiwattha, N.Berger, P.Bernhard, A.Brogna, L.Capozza, S.Covrig Dusa, W.Deconinck, J.Diefenbach, J.Dunne, J.Erler, C.Gal, M.Gericke, B.Glaser, M.Gorchtein, B.Gou, W.Gradl, Y.Imai, K.S.Kumar, F.Maas, J.Mammei, J.Pan, P.Pandey, K.Paschke, I.Peric, M.Pitt, S.Rahman, S.Riordan, D.Rodriguez Pineiro, C.Sfienti, I.Sorokin, P.Souder, H.Spiesberger, M.Thiel, V.Tyukin, Q.Weitzel

The P2 experiment - A future high-precision measurement of the weak mixing angle at low momentum transfer

doi: 10.1140/epja/i2018-12611-6
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2018ES03      Phys.Rev.Lett. 121, 022503 (2018)

A.Esser, M.Thiel, P.Achenbach, K.Aulenbacher, S.Baunack, J.Berscic, D.Bosnar, L.Correa, M.Dehn, M.O.Distler, H.Fonvieille, I.Fricic, M.Gorchtein, S.Heidrich, P.Herrmann, M.Hoek, S.Kegel, Y.Kohl, T.Kolar, H.-J.Kreidel, F.E.Maas, H.Merkel, M.Mihovilovic, J.Muller, U.Muller, F.Nillius, C.Palatchi, K.D.Paschke, J.Pochodzalla, B.S.Schlimme, M.Schoth, F.Schulz, S.Sirca, B.Spruck, S.Stajner, V.Tioukine, A.Tyukin, A.Weber, C.Sfienti

First Measurement of the Q2 Dependence of the Beam-Normal Single Spin Asymmetry for Elastic Scattering off Carbon

NUCLEAR REACTIONS 12C(polarized E, E), E=570 MeV; measured reaction products, Eβ, Iβ; deduced Q2 dependence of the beam-normal single spin asymmetry.

doi: 10.1103/PhysRevLett.121.022503
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2018TI10      Eur.Phys.J. A 54, 210 (2018)

L.Tiator, M.Gorchtein, V.L.Kashevarov, K.Nikonov, M.Ostrick, M.Hadzimehmedovic, R.Omerovic, H.Osmanovic, J.Stahov, A.Svarc

Eta and etaprime photoproduction on the nucleon with the isobar model EtaMAID2018

NUCLEAR REACTIONS 1H(γ, η), (γ, η')1H, E ≈ 1-3 GeV;1n(γ, η)1n, E ≈ 1-3 GeV; calculated σ using EtaMAID2018 code (updated isobar model EtaMAID); compared with published experimental data.

doi: 10.1140/epja/i2018-12643-x
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2016GO29      Phys.Rev. C 94, 055502 (2016)

M.Gorchtein, H.Spiesberger

Hadronic weak charges and parity-violating forward Compton scattering

doi: 10.1103/PhysRevC.94.055502
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2015GO20      Phys.Rev.Lett. 115, 222503 (2015)


New Sum Rule for the Nuclear Magnetic Polarizability

doi: 10.1103/PhysRevLett.115.222503
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2014GO25      Phys.Rev. C 90, 052201 (2014)


Forward sum rule for the 2γ-exchange correction to the charge-radius extraction from elastic electron scattering

doi: 10.1103/PhysRevC.90.052201
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2012GO08      Phys.Rev. C 86, 015205 (2012)

M.Gorchtein, P.Guo, A.P.Szczepaniak

Form factors of pseudoscalar mesons

doi: 10.1103/PhysRevC.86.015205
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2011GO21      Phys.Rev. C 84, 015502 (2011)

M.Gorchtein, C.J.Horowitz, M.J.Ramsey-Musolf

Model dependence of the γ Z dispersion correction to the parity-violating asymmetry in elastic ep scattering

NUCLEAR REACTIONS 1H(polarized e, e), E=2.2375-5.498 GeV; calculated total photoabsorption cross section, differential cross section for inclusive electroproduction; deduced theory uncertainty at the kinematics of the Q-Weak experiment. Comparison with experimental data.

doi: 10.1103/PhysRevC.84.015502
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2011GO35      Phys.Rev. C 84, 065202 (2011)

M.Gorchtein, T.Hobbs, J.T.Londergan, A.P.Szczepaniak

Compton scattering from nuclei and photo-absorption sum rules

doi: 10.1103/PhysRevC.84.065202
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2010GO02      Phys.Rev. C 81, 015206 (2010)


New approach to low energy virtual Compton scattering and generalized polarizabilities of the nucleon

doi: 10.1103/PhysRevC.81.015206
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2008GO12      Phys.Rev. C 77, 044606 (2008)

M.Gorchtein, C.J.Horowitz

Analyzing power in elastic scattering of electrons off a spin-0 target

NUCLEAR REACTIONS 4He(e, e), E=3 GeV; 208Pb(e, e), E=850, 2700 MeV; calculated analyzing power. Comparison with experimental data.

doi: 10.1103/PhysRevC.77.044606
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2008GO18      Phys.Rev. C 77, 065501 (2008)


CP violation in Compton scattering

doi: 10.1103/PhysRevC.77.065501
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2007GO08      Phys.Lett. B 644, 322 (2007)


Dispersive contributions to e+ p/e-p cross section ratio in forward regime

NUCLEAR REACTIONS 1H(polarized e, e), E=3-45 GeV; calculated beam normal spin asymmetry, two-photon exchange contributions, e+/e- asymmetry.

doi: 10.1016/j.physletb.2006.11.065
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2006GO13      Phys.Rev. C 73, 035213 (2006)


Doubly virtual Compton scattering and the beam normal spin asymmetry

doi: 10.1103/PhysRevC.73.035213
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2006GO18      Phys.Rev. C 73, 055201 (2006)


Beam normal spin asymmetry in the quasireal Compton scattering approximation

NUCLEAR REACTIONS 1H(polarized e, e), E=200, 300, 570, 855 MeV; calculated beam normal spin asymmetry. Quasireal Compton scattering approximation.

doi: 10.1103/PhysRevC.73.055201
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2005GO08      Eur.Phys.J. A 24, Supplement 2, 33 (2005)

M.Gorchtein, P.A.M.Guichon, M.Vanderhaeghen

Transverse single spin asymmetry in elastic electron-proton scattering

NUCLEAR REACTIONS 1H(e, e), E=3-11 GeV; calculated spin asymmetries, two-photon exchange contributions.

doi: 10.1140/epjad/s2005-04-006-2
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2005GO23      Nucl.Phys. A755, 273c (2005)

M.Gorchtein, P.A.M.Guichon, M.Vanderhaeghen

Normal Spin Asymmetries in Elastic Electron-Proton Scattering

NUCLEAR REACTIONS 1n, 1H(polarized e, e), E=3, 6, 11 GeV; calculated spin asymmetry, two-photon exchange contributions.

doi: 10.1016/j.nuclphysa.2005.03.026
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2004GO13      Eur.Phys.J. A 19, Supplement 1, 77 (2004)

M.Gorchtein, D.Drechsel, M.Giannini, E.Santopinto

Generalized sum rules of the nucleon in the constituent quark model

NUCLEAR STRUCTURE 1n, 1H; analyzed sum rules, related features. Constituent quark model.

doi: 10.1140/epjad/s2004-03-013-1
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2004GO41      Nucl.Phys. A741, 234 (2004)

M.Gorchtein, P.A.M.Guichon, M.Vanderhaeghen

Beam normal spin asymmetry in elastic lepton-nucleon scattering

NUCLEAR REACTIONS 1H(polarized e, e), E=3-11 GeV; calculated spin asymmetry, two-photon exchange contribution. Parton model.

doi: 10.1016/j.nuclphysa.2004.06.008
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2004GO50      Phys.Rev. C 70, 055202 (2004)

M.Gorchtein, D.Drechsel, M.M.Giannini, E.Santopinto, L.Tiator

Generalized sum rules of the nucleon in the constituent quark model

NUCLEAR STRUCTURE 1n, 1H; calculated sum rules, polarizabilities. Hypercentral constituent quark model.

doi: 10.1103/PhysRevC.70.055202
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2001PA32      Eur.Phys.J. A 11, 185 (2001)

B.Pasquini, M.Gorchtein, D.Drechsel, A.Metz, M.Vanderhaeghen

Dispersion Relation Formalism for Virtual Compton Scattering Off the Proton

NUCLEAR REACTIONS 1H(e, e'γ), E=high; calculated σ(θ, Eγ), double polarization asymmetry, electron single spin asymmetry. Comparison with data.

doi: 10.1007/s100500170084
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2001VA15      Nucl.Phys. A684, 357c (2001)

M.Vanderhaeghen, D.Drechsel, M.Gorchtein, B.Pasquini

Dispersion Relation Formalism for Real and Virtual Compton Scattering and Nucleon Polarizabilities

NUCLEAR REACTIONS 1H(γ, γ'), E=149-230 MeV; calculated σ(E, θ), dispersion relations. Determination of nucleon polarizabilities discussed. Comparisons with data.

doi: 10.1016/S0375-9474(01)00377-3
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2000DR01      Phys.Rev. C61, 015204 (2000)

D.Drechsel, M.Gorchtein, B.Pasquini, M.Vanderhaeghen

Fixed-t Subtracted Dispersion Relations for Compton Scattering Off the Nucleon

NUCLEAR REACTIONS 1H(γ, γ'), E=0-500 MeV; calculated σ(E, θ); deduced dispersion relations. Comparisons with data.

doi: 10.1103/PhysRevC.61.015204
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2000GO21      Prog.Part.Nucl.Phys. 44, 459 (2000)

M.Gorchtein, D.Drechsel, B.Pasquini, M.Vanderhaeghen

Fixed-t Subtracted Dispersion Relations for Compton Scattering Off the Nucleon

NUCLEAR REACTIONS 1H(γ, γ'), E=182 MeV; analyzed σ(θ); deduced polarizability parameters. Fixed-t subtracted dispersion relations.

doi: 10.1016/S0146-6410(00)00098-3
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2000PA56      Phys.Rev. C62, 052201 (2000)

B.Pasquini, D.Drechsel, M.Gorchtein, A.Metz, M.Vanderhaeghen

Dispersion Relation Formalism for Virtual Compton Scattering and the Generalized Polarizabilities of the Nucleon

NUCLEAR REACTIONS 1H(e, e'γ), E not given; calculated virtual Compton scattering dispersion results for proton generalized polarizabilities.

doi: 10.1103/PhysRevC.62.052201
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