Zobrazeno 1 - 10
of 60
pro vyhledávání: '"Judith A. McGovern"'
Autor:
M. T. Pratola, Daniel R. Phillips, J. A. Melendez, Harald W. Grießhammer, Richard Furnstahl, Judith A. McGovern
Publikováno v:
Melendez, J A, Furnstahl, R J, Grießhammer, H W, Mcgovern, J A, Phillips, D R & Pratola, M T 2021, ' Designing optimal experiments: an application to proton Compton scattering ', The European Physical Journal A, vol. 57, no. 3 . https://doi.org/10.1140/epja/s10050-021-00382-2
Interpreting measurements requires a physical theory, but the theory's accuracy may vary across the experimental domain. To optimize experimental design, and so to ensure that the substantial resources necessary for modern experiments are focused on
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1d4f062da41144a009d005b357441dab
http://arxiv.org/abs/2004.11307
http://arxiv.org/abs/2004.11307
Publikováno v:
Proceedings of The 9th International workshop on Chiral Dynamics — PoS(CD2018).
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ac8e126ae93cbf2ec810f2a01e5cdee4
https://doi.org/10.22323/1.317.0027
https://doi.org/10.22323/1.317.0027
Publikováno v:
Proceedings of The 9th International workshop on Chiral Dynamics — PoS(CD2018).
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5f119fafa2f5409d4f11387c584d5638
https://doi.org/10.22323/1.317.0009
https://doi.org/10.22323/1.317.0009
Publikováno v:
Recent Progress in Few-Body Physics ISBN: 9783030323561
This executive summary of recent theory progress in Compton scattering off \({}^3\)He focuses on determining neutron polarisabilities; see Margaryan et al (Eur Phys J A 54:125, 2018) and references therein for details and a better bibliography.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c8c4d48a5a86b7201fa7e650c1462d25
https://doi.org/10.1007/978-3-030-32357-8_68
https://doi.org/10.1007/978-3-030-32357-8_68
Publikováno v:
Few-body systems 61(4), 48 (2020). doi:10.1007/s00601-020-01578-w
We introduce the transition-density formalism, an efficient and general method for calculating the interaction of external probes with light nuclei. One- and two-body transition densities that encode the nuclear structure of the target are evaluated
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3dba7ace48caf889daf6f43c9eb3ac2a
https://juser.fz-juelich.de/record/889272
https://juser.fz-juelich.de/record/889272
Publikováno v:
Recent Progress in Few-Body Physics ISBN: 9783030323561
We consider the response of nucleons and light nuclei to electromagnetic fields to test the ability of chiral effective field theory to describe such systems in a consistent and systematically-improvable manner.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::576c9798b3fa5001ff2aa4dc4e4185dd
https://doi.org/10.1007/978-3-030-32357-8_42
https://doi.org/10.1007/978-3-030-32357-8_42
Autor:
Judith A. McGovern, Michael C. Birse
Publikováno v:
Birse, M & McGovern, J 2018, ' Comment on 'Nucleon spin-averaged forward virtual Compton tensor at large Q2' ', Physical Review D-Particles, Fields, Gravitation and Cosmology, vol. 98, no. 3, 038503 . https://doi.org/10.1103/PhysRevD.98.038503
Physical Review
Physical Review
In recent work, Hill and Paz apply the operator product expansion to forward doubly virtual Compton scattering. The resulting large-$Q^2$ form of the amplitude $W_1(0,Q^2)$ is compatible with the one we obtain by extrapolation of low-$Q^2$ results fr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6893b75b52fface686cfa9b4e8a715d3
https://doi.org/10.1103/physrevd.98.038503
https://doi.org/10.1103/physrevd.98.038503
Autor:
Judith A. McGovern, B. Strandberg, Arman Margaryan, Harald W. Grießhammer, Deepshikha Shukla, Daniel R. Phillips
Publikováno v:
Margaryan, A, Strandberg, B, Griesshammer, H, McGovern, J, Phillips, D & Shukla, D 2018, ' Elastic Compton scattering from 3He and the role of the Delta ', The European Physical Journal A: Hadrons and Nuclei . https://doi.org/10.1140/epja/i2018-12554-x
We report observables for elastic Compton scattering from $^3$He in Chiral Effective Field Theory with an explicit $\Delta(1232)$ degree of freedom ($\chi$EFT) for energies between 50 and 120 MeV. The $\gamma\,{}^3$He amplitude is complete at N3LO, $
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2613b84cc555cf720da39a820e5b5825
https://doi.org/10.1140/epja/i2018-12554-x
https://doi.org/10.1140/epja/i2018-12554-x
Publikováno v:
Grießhammer, H W, McGovern, J & Phillips, D 2018, ' Comprehensive Study of Observables in Compton Scattering on the Nucleon ', European Journal of Physics . https://doi.org/10.1140/epja/i2018-12467-8
We present an analysis of $13$ observables in Compton scattering on the proton. Cross sections, asymmetries with polarised beam and/or targets, and polarisation-transfer observables are investigated for energies up to the $\Delta(1232)$ resonance to
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::80d999c85e30a28c2a92c12abf6468b6
Autor:
A. Käser, C. S. Akondi, Michaela Thiel, D. Hornidge, I. J. D. MacGregor, P. Ott, A. J. Sarty, D. M. Manley, R. Kondratiev, G. M. Gurevich, B. Krusche, M. Korolija, J. Ahrens, Durga Paudyal, M. Unverzagt, N. Krupina, M. Wolfes, M. Ostrick, P. P. Martel, Judith A. McGovern, S. N. Prakhov, F. Cividini, T. Rostomyan, J. Wettig, H. Ortega Spina, D. I. Glazier, D. Werthmüller, V. Sokhoyan, Lilian Witthauer, B. Oussena, A. Polonski, C. Collicott, A. Rajabi, A. G. Denig, I. Supek, V. Lensky, D. P. Watts, V. L. Kashevarov, I. Keshelashvili, Roderick M. Macrae, S. Schumann, M. Oberle, Andy Thomas, P. B. Otte, I. I. Strakovsky, S. Wagner, D. Glowa, V. Polyansky, E. Mornacchi, W. J. Briscoe, A. N. Mushkarenkov, M. Ferretti, J. Linturi, F. Afzal, P. Pedroni, M. Dieterle, W. Gradl, V. Lisin, A. Braghieri, Th. Strub, E. J. Downie, D. G. Middleton, G. M. Huber, S. Garni, R. A. Miskimen, K. Livingston, O. Steffen, B. Strandberg, S. Gardner, H. J. Arends, David Hamilton, Lorenzo Zana, A. Neiser, J. R. M. Annand, Susanna Costanza, R. Beck
Publikováno v:
The European Physical Journal A. 53
The scalar dipole polarizabilities, $\alpha_{E1}$ and $\beta_{M1}$, are fundamental properties related to the internal dynamics of the nucleon. The currently accepted values of the proton polarizabilities were determined by fitting to unpolarized pro
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::09be0a626651fd1c3345c653f08e9ccb
https://doi.org/10.1140/epja/i2017-12203-0
https://doi.org/10.1140/epja/i2017-12203-0