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Author |
Smith, W.A.; Glazier, D.I.; Mathieu, V.; Albaladejo, M.; Albrecht, M.; Baldwin, Z.; Fernandez-Ramirez, C.; Hammoud, N.; Mikhasenko, M.; Montaña, G.; Perry, R.J.; Pilloni, A.; Shastry, V.; Szczepaniak, A.P.; Winney, D. |
![goto web page (via DOI) doi](img/doi.gif)
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Title |
Ambiguities in partial wave analysis of two spinless meson photoproduction |
Type |
Journal Article |
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Year |
2023 |
Publication |
Physical Review D |
Abbreviated Journal |
Phys. Rev. D |
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Volume |
108 |
Issue |
7 |
Pages |
076001 - 12pp |
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Abstract ![sorted by Abstract field, descending order (down)](img/sort_desc.gif) |
We describe the formalism to analyze the mathematical ambiguities arising in partial-wave analysis of two spinless mesons produced with a linearly polarized photon beam. We show that partial waves are uniquely defined when all accessible observables are considered, for a wave set which includes S and D waves. The inclusion of higher partial waves does not affect our results, and we conclude that there are no mathematical ambiguities in partial-wave analysis of two mesons produced with a linearly polarized photon beam. We present Monte Carlo simulations to illustrate our results. |
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Address |
[Smith, W. A.; Shastry, V.; Szczepaniak, A. P.] Indiana Univ, Dept Phys, Bloomington, IN 47405 USA, Email: smithwya@iu.edu |
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Amer Physical Soc |
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English |
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ISSN |
2470-0010 |
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Notes |
WOS:001092811700004 |
Approved |
no |
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Is ISI |
yes |
International Collaboration |
yes |
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Call Number |
IFIC @ pastor @ |
Serial |
5781 |
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Permanent link to this record |
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Author |
Garcia Canal, C.A.; Tarutina, T.; Vento, V. |
![find record details (via OpenURL) openurl](img/xref.gif)
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Title |
Analysis of Nuclear Effects in Structure Functions and Their Connection with the Binding Energy of Nuclei |
Type |
Journal Article |
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Year |
2023 |
Publication |
Brazilian Journal of Physics |
Abbreviated Journal |
Braz. J. Phys. |
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Volume |
53 |
Issue |
6 |
Pages |
161 - 8pp |
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Keywords |
Structure functions; Deep inelastic scattering; EMC effect; Nuclear dynamics |
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Abstract ![sorted by Abstract field, descending order (down)](img/sort_desc.gif) |
We describe nuclear effects in structure functions of nuclei in DIS by means of a multiplicative factor beta(A)(x) which differentiates the structure function of the bound nucleons from that of the free nucleons. Our analysis determines that beta(A)(x) establishes a relation between the quark-gluon dynamics expressed by the bound nucleon structure functions and the nuclear dynamics as described by the well-known semi-empirical Bethe-Weizsacker mass formula. This relation corroborates a connection between the underlying quark-gluon dynamics and the phenomenological nuclear dynamics. |
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Address |
[Canal, C. A. Garcia] Univ La Plata, Dept Phys, Cc 67, RA-1900 La Plata, Argentina, Email: ttarutina@gmail.com |
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Springer |
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English |
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ISSN |
0103-9733 |
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Notes |
WOS:001087936700001 |
Approved |
no |
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Is ISI |
yes |
International Collaboration |
yes |
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Call Number |
IFIC @ pastor @ |
Serial |
5766 |
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Author |
Coloma, P.; Gonzalez-Garcia, M.C.; Maltoni, M.; Pinheiro, J.P.; Urrea, S. |
![goto web page (via DOI) doi](img/doi.gif)
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Title |
Global constraints on non-standard neutrino interactions with quarks and electrons |
Type |
Journal Article |
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Year |
2023 |
Publication |
Journal of High Energy Physics |
Abbreviated Journal |
J. High Energy Phys. |
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Volume |
08 |
Issue |
8 |
Pages |
032 - 42pp |
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Keywords |
Neutrino Mixing; Non-Standard Neutrino Properties; Neutrino Interactions |
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Abstract ![sorted by Abstract field, descending order (down)](img/sort_desc.gif) |
We derive new constraints on effective four-fermion neutrino non-standard interactions with both quarks and electrons. This is done through the global analysis of neutrino oscillation data and measurements of coherent elastic neutrino-nucleus scattering (CE & nu;NS) obtained with different nuclei. In doing so, we include not only the effects of new physics on neutrino propagation but also on the detection cross section in neutrino experiments which are sensitive to the new physics. We consider both vector and axial-vector neutral-current neutrino interactions and, for each case, we include simultaneously all allowed effective operators in flavour space. To this end, we use the most general parametrization for their Wilson coefficients under the assumption that their neutrino flavour structure is independent of the charged fermion participating in the interaction. The status of the LMA-D solution is assessed for the first time in the case of new interactions taking place simultaneously with up quarks, down quarks, and electrons. One of the main results of our work are the presently allowed regions for the effective combinations of non-standard neutrino couplings, relevant for long-baseline and atmospheric neutrino oscillation experiments. |
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Address |
[Coloma, Pilar; Maltoni, Michele] UAM, Inst Fis Teor IFT, CSIC, CFTMAT, Calle Nicolas Cabrera 13-15,Campus Cantoblanco, E-28049 Madrid, Spain, Email: pilar.coloma@ift.csic.es; |
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Springer |
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English |
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ISSN |
1029-8479 |
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Notes |
WOS:001044930400002 |
Approved |
no |
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Is ISI |
yes |
International Collaboration |
yes |
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Call Number |
IFIC @ pastor @ |
Serial |
5606 |
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Permanent link to this record |
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Author |
Gessner, M.; Smerzi, A. |
![goto web page (via DOI) doi](img/doi.gif)
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Title |
Hierarchies of Frequentist Bounds for Quantum Metrology: From Cramer-Rao to Barankin |
Type |
Journal Article |
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Year |
2023 |
Publication |
Physical Review Letters |
Abbreviated Journal |
Phys. Rev. Lett. |
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Volume |
130 |
Issue |
26 |
Pages |
260801 - 6pp |
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Abstract ![sorted by Abstract field, descending order (down)](img/sort_desc.gif) |
We derive lower bounds on the variance of estimators in quantum metrology by choosing test observables that define constraints on the unbiasedness of the estimator. The quantum bounds are obtained by analytical optimization over all possible quantum measurements and estimators that satisfy the given constraints. We obtain hierarchies of increasingly tight bounds that include the quantum Cramer-Rao bound at the lowest order. In the opposite limit, the quantum Barankin bound is the variance of the locally best unbiased estimator in quantum metrology. Our results reveal generalizations of the quantum Fisher information that are able to avoid regularity conditions and identify threshold behavior in quantum measurements with mixed states, caused by finite data. |
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Address |
[Gessner, Manuel] Univ Valencia, Dept Fis Teor, IFIC, CSIC, Carrer Dr Moliner 50, Valencia 46100, Spain, Email: manuel.gessner@uv.es; |
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Publisher |
Amer Physical Soc |
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English |
Summary Language |
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Original Title |
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Series Editor |
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Series Title |
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Edition |
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ISSN |
0031-9007 |
ISBN |
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Area |
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Expedition |
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Conference |
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Notes |
WOS:001140164100003 |
Approved |
no |
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Is ISI |
yes |
International Collaboration |
yes |
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Call Number |
IFIC @ pastor @ |
Serial |
5902 |
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Permanent link to this record |
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Author |
Davesne, D.; Holt, J.W.; Navarro, J.; Pastore, A. |
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Title |
Landau sum rules with noncentral quasiparticle interactions |
Type |
Journal Article |
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Year |
2023 |
Publication |
Physical Review C |
Abbreviated Journal |
Phys. Rev. C |
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Volume |
108 |
Issue |
3 |
Pages |
034003 - 7pp |
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Keywords |
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Abstract ![sorted by Abstract field, descending order (down)](img/sort_desc.gif) |
We derive explicit expressions for the Landau sum rules for the case of the most general spin-dependent quasiparticle interaction including all possible tensor interactions. For pure neutron matter, we investigate the convergence of the sum rules at different orders of approximation. Employing modern nuclear Hamiltonians based on chiral effective field theory, we find that the inclusion of noncentral interactions improves the convergence of the sum rules only for low densities (n <= 0.1 fm-3). Around nuclear matter saturation density, we find that even ostensibly perturbative nuclear interactions violate the sum rules considerably. By artificially weakening the strength of the nuclear Hamiltonian, the convergence can be improved. |
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Address |
[Davesne, D.] Univ Lyon, Univ Lyon 1, 43 Blvd 11 Novembre 1918, F-69622 Villeurbanne, France, Email: davesne@ipnl.in2p3.fr; |
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Publisher |
Amer Physical Soc |
Place of Publication |
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Language |
English |
Summary Language |
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Original Title |
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Series Editor |
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Abbreviated Series Title |
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Series Volume |
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Series Issue |
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Edition |
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ISSN |
2469-9985 |
ISBN |
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Medium |
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Area |
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Expedition |
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Conference |
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Notes |
WOS:001088200900001 |
Approved |
no |
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Is ISI |
yes |
International Collaboration |
yes |
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Call Number |
IFIC @ pastor @ |
Serial |
5750 |
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Permanent link to this record |