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Author |
Celis, A.; Fuentes-Martin, J.; Vicente, A.; Virto, J. |
![goto web page (via DOI) doi](img/doi.gif)
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Title ![sorted by Title field, ascending order (up)](img/sort_asc.gif) |
DsixTools: the standard model effective field theory toolkit |
Type |
Journal Article |
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Year |
2017 |
Publication |
European Physical Journal C |
Abbreviated Journal |
Eur. Phys. J. C |
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Volume |
77 |
Issue |
6 |
Pages |
405 - 40pp |
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Abstract |
We present DsixTools, a Mathematica package for the handling of the dimension-six standard model effective field theory. Among other features, DsixTools allows the user to perform the full one-loop renormalization group evolution of the Wilson coefficients in the Warsaw basis. This is achieved thanks to the SMEFTrunner module, which implements the full one-loop anomalous dimension matrix previously derived in the literature. In addition, DsixTools also contains modules devoted to the matching to the Delta B = Delta S = 1, 2 and Delta B = Delta C = 1 operators of the Weak Effective Theory at the electroweak scale, and their QCD and QED Renormalization group evolution below the electroweak scale. |
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Address |
[Celis, Alejandro] Ludwig Maximilians Univ Munchen, Arnold Sommerfeld Ctr Theoret Phys, Fak Phys, D-80333 Munich, Germany, Email: Alejandro.Celis@physik.uni-muenchen.de; |
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Springer |
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1434-6044 |
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WOS:000403504500002 |
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no |
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yes |
International Collaboration |
yes |
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Call Number |
IFIC @ pastor @ |
Serial |
3181 |
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Author |
Sakai, S.; Hosaka, A.; Nagahiro, H. |
![goto web page (via DOI) doi](img/doi.gif)
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Title ![sorted by Title field, ascending order (up)](img/sort_asc.gif) |
Effect of the final state interaction of eta ' N on the eta ' photoproduction off the nucleon |
Type |
Journal Article |
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Year |
2017 |
Publication |
Physical Review C |
Abbreviated Journal |
Phys. Rev. C |
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Volume |
95 |
Issue |
4 |
Pages |
045206 - 9pp |
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Abstract |
We investigate the eta' photoproduction off the nucleon with a particular interest in the effect of the final-state interaction (FSI) of the eta' meson and nucleon (eta' N) based on the three-flavor linear sigma model. We find an enhancement in the cross section of the eta' photoproduction near the eta' N-threshold energy owing to the eta' N FSI. With the eta' meson at forward angles, the energy dependence near the eta' N threshold is well reproduced with the eta' N FSI. The cross section at backward angles can also be a good probe to investigate the strength of the eta' N interaction. |
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Address |
[Sakai, Shuntaro; Hosaka, Atsushi; Nagahiro, Hideko] Osaka Univ, Res Ctr Nucl Phys, Ibaraki, Osaka 5670047, Japan, Email: shsakai@rcnp.osaka-u.ac.jp |
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Amer Physical Soc |
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2469-9985 |
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WOS:000400141200004 |
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no |
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yes |
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yes |
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Call Number |
IFIC @ pastor @ |
Serial |
3094 |
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Author |
Das, D.; Lopez-Ibañez, M.L.; Jay Perez, M.; Vives, O. |
![goto web page (via DOI) doi](img/doi.gif)
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Title ![sorted by Title field, ascending order (up)](img/sort_asc.gif) |
Effective theories of flavor and the nonuniversal MSSM |
Type |
Journal Article |
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Year |
2017 |
Publication |
Physical Review D |
Abbreviated Journal |
Phys. Rev. D |
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Volume |
95 |
Issue |
3 |
Pages |
035001 - 16pp |
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Abstract |
Flavor symmetries a la Froggatt-Nielsen provide a compelling way to explain the hierarchies of fermionic masses and mixing angles in the Yukawa sector. In supersymmetric (SUSY) extensions of the Standard Model where the mediation of SUSY breaking occurs at scales larger than the breaking of flavor, this symmetry must be respected not only by the Yukawas of the superpotential but also by the soft-breaking masses and trilinear terms. In this work we show that contrary to naive expectations, even starting with completely flavor blind soft breaking in the full theory at high scales, the low-energy sfermion mass matrices and trilinear terms of the effective theory, obtained upon integrating out the heavy mediator fields, are strongly nonuniversal. We explore the phenomenology of these SUSY flavor models after the latest LHC searches for new physics. |
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Address |
[Das, Dipankar; Lopez-Ibanez, M. L.; Jay Perez, M.; Vives, Oscar] Univ Valencia, Dept Fis Teor, Dr Moliner 50, E-46100 Burjassot, Valencia, Spain, Email: dipankar.das@uv.es; |
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Amer Physical Soc |
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ISSN |
2470-0010 |
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Notes |
WOS:000402238100001 |
Approved |
no |
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Is ISI |
yes |
International Collaboration |
no |
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Call Number |
IFIC @ pastor @ |
Serial |
3149 |
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Author |
Bagli, E.; Bandiera, L.; Cavoto, G.; Guidi, V.; Henry, L.; Marangotto, D.; Martinez-Vidal, F.; Mazzolari, A.; Merli, A.; Neri, N.; Vidal, J.R. |
![goto web page (via DOI) doi](img/doi.gif)
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Title ![sorted by Title field, ascending order (up)](img/sort_asc.gif) |
Electromagnetic dipole moments of charged baryons with bent crystals at the LHC |
Type |
Journal Article |
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Year |
2017 |
Publication |
European Physical Journal C |
Abbreviated Journal |
Eur. Phys. J. C |
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Volume |
77 |
Issue |
12 |
Pages |
828 - 19pp |
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Abstract |
We propose a unique program of measurements of electric and magnetic dipole moments of charm, beauty and strange charged baryons at the LHC, based on the phenomenon of spin precession of channeled particles in bent crystals. Studies of crystal channeling and spin precession of positively- and negatively-charged particles are presented, along with feasibility studies and expected sensitivities for the proposed experiment using a layout based on the LHCb detector. |
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Address |
[Bagli, E.; Bandiera, L.; Guidi, V.; Mazzolari, A.] INFN Sez Ferrara, Ferrara, Italy, Email: nicola.neri@mi.infn.it |
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Springer |
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English |
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ISSN |
1434-6044 |
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Conference |
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Notes |
WOS:000417103300002 |
Approved |
no |
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Is ISI |
yes |
International Collaboration |
yes |
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Call Number |
IFIC @ pastor @ |
Serial |
3394 |
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Permanent link to this record |
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Author |
Agullo, I.; del Rio, A.; Navarro-Salas, J. |
![goto web page (via DOI) doi](img/doi.gif)
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Title ![sorted by Title field, ascending order (up)](img/sort_asc.gif) |
Electromagnetic Duality Anomaly in Curved Spacetimes |
Type |
Journal Article |
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Year |
2017 |
Publication |
Physical Review Letters |
Abbreviated Journal |
Phys. Rev. Lett. |
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Volume |
118 |
Issue |
11 |
Pages |
111301 - 5pp |
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Keywords |
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Abstract |
The source-free Maxwell action is invariant under electric-magnetic duality rotations in arbitrary spacetimes. This leads to a conserved classical Noether charge. We show that this conservation law is broken at the quantum level in the presence of a background classical gravitational field with a nontrivial Chern-Pontryagin invariant, in parallel with the chiral anomaly for massless Dirac fermions. Among the physical consequences, the net polarization of the quantum electromagnetic field is not conserved. |
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Address |
[Agullo, Ivan; del Rio, Adrian] Louisiana State Univ, Dept Phys & Astron, Baton Rouge, LA 70803 USA, Email: agullo@lsu.edu; |
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Amer Physical Soc |
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English |
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ISSN |
0031-9007 |
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Notes |
WOS:000396267100003 |
Approved |
no |
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Is ISI |
yes |
International Collaboration |
yes |
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Call Number |
IFIC @ pastor @ |
Serial |
2964 |
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Permanent link to this record |
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Author |
Rocco, N.; Alvarez-Ruso, L.; Lovato, A.; Nieves, J. |
![goto web page (via DOI) doi](img/doi.gif)
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Title ![sorted by Title field, ascending order (up)](img/sort_asc.gif) |
Electromagnetic scaling functions within the Green's function Monte Carlo approach |
Type |
Journal Article |
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Year |
2017 |
Publication |
Physical Review C |
Abbreviated Journal |
Phys. Rev. C |
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Volume |
96 |
Issue |
1 |
Pages |
015504 - 12pp |
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Keywords |
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Abstract |
We have studied the scaling properties of the electromagnetic response functions of He-4 and C-12 nuclei computed by the Green's function Monte Carlo approach, retaining only the one-body current contribution. Longitudinal and transverse scaling functions have been obtained in the relativistic and nonrelativistic cases and compared to experiment for various kinematics. The characteristic asymmetric shape of the scaling function exhibited by data emerges in the calculations in spite of the nonrelativistic nature of the model. The results are mostly consistent with scaling of zeroth, first, and second kinds. Our analysis reveals a direct correspondence between the scaling and the nucleon-density response functions. The scaling function obtained from the proton-density response displays scaling of the first kind, even more evidently than the longitudinal and transverse scaling functions. |
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Address |
[Rocco, N.; Alvarez-Ruso, L.; Nieves, J.] Univ Valencia, CSIC, Ctr Mixto, Inst Fis Corpuscular IFIC, E-46071 Valencia, Spain |
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Amer Physical Soc |
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English |
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ISSN |
2469-9985 |
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Expedition |
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Conference |
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Notes |
WOS:000406294000008 |
Approved |
no |
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Is ISI |
yes |
International Collaboration |
yes |
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Call Number |
IFIC @ pastor @ |
Serial |
3217 |
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Permanent link to this record |
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Author |
ATLAS Collaboration (Aaboud, M. et al); Alvarez Piqueras, D.; Barranco Navarro, L.; Cabrera Urban, S.; Castillo Gimenez, V.; Cerda Alberich, L.; Costa, M.J.; Fernandez Martinez, P.; Ferrer, A.; Fiorini, L.; Fuster, J.; Garcia, C.; Garcia Navarro, J.E.; Gonzalez de la Hoz, S.; Higon-Rodriguez, E.; Jimenez Pena, J.; King, M.; Lacasta, C.; Mamuzic, J.; Marti-Garcia, S.; Melini, D.; Mitsou, V.A.; Pedraza Lopez, S.; Rodriguez Rodriguez, D.; Romero Adam, E.; Ros, E.; Salt, J.; Sanchez Martinez, V.; Soldevila, U.; Sanchez, J.; Valero, A.; Valls Ferrer, J.A.; Vos, M. |
![goto web page (via DOI) doi](img/doi.gif)
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Title ![sorted by Title field, ascending order (up)](img/sort_asc.gif) |
Electron efficiency measurements with the ATLAS detector using 2012 LHC proton-proton collision data |
Type |
Journal Article |
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Year |
2017 |
Publication |
European Physical Journal C |
Abbreviated Journal |
Eur. Phys. J. C |
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Volume |
77 |
Issue |
3 |
Pages |
195 - 45pp |
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Keywords |
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Abstract |
This paper describes the algorithms for the reconstruction and identification of electrons in the central region of the ATLAS detector at the Large Hadron Collider (LHC). These algorithms were used for all ATLAS results with electrons in the final state that are based on the 2012 pp collision data produced by the LHC at root s = 8 TeV. The efficiency of these algorithms, together with the charge misidentification rate, is measured in data and evaluated in simulated samples using electrons from Z -> ee, Z -> ee gamma and J/Psi -> ee decays. For these efficiency measurements, the full recorded data set, corresponding to an integrated luminosity of 20.3 fb(-1), is used. Based on a new reconstruction algorithm used in 2012, the electron reconstruction efficiency is 97% for electrons with E-T = 15 GeV and 99% at E-T = 50 GeV. Combining this with the efficiency of additional selection criteria to reject electrons from background processes or misidentified hadrons, the efficiency to reconstruct and identify electrons at the ATLAS experiment varies from 65 to 95%, depending on the transverse momentum of the electron and background rejection. |
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Address |
[Jackson, P.; Lee, L.; Petridis, A.; White, M. J.] Univ Adelaide, Dept Phys, Adelaide, SA, Australia |
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Springer |
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English |
Summary Language |
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Abbreviated Series Title |
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ISSN |
1434-6044 |
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Expedition |
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Conference |
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Notes |
WOS:000398956200005 |
Approved |
no |
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Is ISI |
yes |
International Collaboration |
yes |
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Call Number |
IFIC @ pastor @ |
Serial |
3157 |
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Permanent link to this record |
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Author |
Molina, F.; Aguilera, P.; Romero-Barrientos, J.; Arellano, H.F.; Agramunt, J.; Medel, J.; Morales, J.R.; Zambra, M. |
![find record details (via OpenURL) openurl](img/xref.gif)
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Title ![sorted by Title field, ascending order (up)](img/sort_asc.gif) |
Energy distribution of the neutron flux measurements at the Chilean Reactor RECH-1 using multi-foil neutron activation and the Expectation Maximization unfolding algorithm |
Type |
Journal Article |
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Year |
2017 |
Publication |
Applied Radiation and Isotopes |
Abbreviated Journal |
Appl. Radiat. Isot. |
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Volume |
129 |
Issue |
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Pages |
28-34 |
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Abstract |
We present a methodology to obtain the energy distribution of the neutron flux of an experimental nuclear reactor, using multi-foil activation measurements and the Expectation Maximization unfolding algorithm, which is presented as an alternative to well known unfolding methods such as GRAVEL. Self-shielding flux corrections for energy bin groups were obtained using MCNP6 Monte Carlo simulations. We have made studies at the at the Dry Tube of RECH-1 obtaining fluxes of 1.5(4) x 10(13) cm(-2) s(-1) for the thermal neutron energy region, 1.9(5) x 10(12) cm(-2) s(-1) for the epithermal neutron energy region, and 4.3(11) x 10(11) cm(-2) s(-1) for the fast neutron energy region. |
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Edition |
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ISSN |
0969-8043 |
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Notes |
WOS:000413058200005 |
Approved |
no |
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Is ISI |
yes |
International Collaboration |
yes |
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Call Number |
IFIC @ pastor @ |
Serial |
3326 |
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Permanent link to this record |
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Author |
Gomez Dumm, D.; Noguera, S.; Scoccola, N.N. |
![goto web page (via DOI) doi](img/doi.gif)
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Title ![sorted by Title field, ascending order (up)](img/sort_asc.gif) |
eta-gamma and eta(')-gamma transition form factors in a nonlocal NJL model |
Type |
Journal Article |
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Year |
2017 |
Publication |
Physical Review D |
Abbreviated Journal |
Phys. Rev. D |
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Volume |
95 |
Issue |
5 |
Pages |
054006 - 19pp |
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Keywords |
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Abstract |
We study the eta and eta(') distribution amplitudes (DAs) in the context of a nonlocal SU(3)(L) circle times SUd(3)(R) chiral quark model. The corresponding Lagrangian allows us to reproduce the phenomenological values of pseudoscalar meson masses and decay constants, as well as the momentum dependence of the quark propagator arising from lattice calculations. It is found that the obtained DAs have two symmetric maxima, which arise from new contributions generated by the nonlocal character of the interactions. These DAs are then applied to the calculation of the eta-gamma and eta(')-gamma transition form factors. Implications of our results regarding higher twist corrections and/or contributions to the transition form factors originated by gluon-gluon components in the eta and eta(') mesons are discussed. |
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Address |
[Gomez Dumm, D.] Univ Nacl La Plata, Fac Ciencias Exactas, Dept Fis, IFLP,CONICET, CC 67, RA-1900 La Plata, Buenos Aires, Argentina |
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Amer Physical Soc |
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English |
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Series Volume |
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Series Issue |
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Edition |
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ISSN |
2470-0010 |
ISBN |
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Expedition |
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Conference |
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Notes |
WOS:000396030600002 |
Approved |
no |
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Is ISI |
yes |
International Collaboration |
yes |
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Call Number |
IFIC @ pastor @ |
Serial |
3031 |
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Permanent link to this record |
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Author |
Albiol, F.; Corbi, A.; Albiol, A. |
![find record details (via OpenURL) openurl](img/xref.gif)
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Title ![sorted by Title field, ascending order (up)](img/sort_asc.gif) |
Evaluation of modern camera calibration techniques for conventional diagnostic X-ray imaging settings |
Type |
Journal Article |
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Year |
2017 |
Publication |
Radiological Physics and Technology |
Abbreviated Journal |
Radiol. Phys. Technol. |
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Volume |
10 |
Issue |
1 |
Pages |
68-81 |
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Keywords |
Conventional X-ray camera calibration; Detector resolution; Intrinsic and extrinsic parameters; Zhang's method; Direct linear transform; Tsai's approach |
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Abstract |
We explore three different alternatives for obtaining intrinsic and extrinsic parameters in conventional diagnostic X-ray frameworks: the direct linear transform (DLT), the Zhang method, and the Tsai approach. We analyze and describe the computational, operational, and mathematical background differences for these algorithms when they are applied to ordinary radiograph acquisition. For our study, we developed an initial 3D calibration frame with tin cross-shaped fiducials at specific locations. The three studied methods enable the derivation of projection matrices from 3D to 2D point correlations. We propose a set of metrics to compare the efficiency of each technique. One of these metrics consists of the calculation of the detector pixel density, which can be also included as part of the quality control sequence in general X-ray settings. The results show a clear superiority of the DLT approach, both in accuracy and operational suitability. We paid special attention to the Zhang calibration method. Although this technique has been extensively implemented in the field of computer vision, it has rarely been tested in depth in common radiograph production scenarios. Zhang's approach can operate on much simpler and more affordable 2D calibration frames, which were also tested in our research. We experimentally confirm that even three or four plane-image correspondences achieve accurate focal lengths. |
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Address |
[Albiol, Francisco; Corbi, Alberto] Univ Valencia, CSIC, Inst Fis Corpuscular, Valencia, Spain, Email: alberto.corbi@ific.uv.es |
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Publisher |
Springer Japan Kk |
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English |
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ISSN |
1865-0333 |
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Notes |
WOS:000405867100009 |
Approved |
no |
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Is ISI |
yes |
International Collaboration |
no |
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Call Number |
IFIC @ pastor @ |
Serial |
3238 |
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Permanent link to this record |