Matches in SemOpenAlex for { <https://semopenalex.org/work/W2073973923> ?p ?o ?g. }
- W2073973923 abstract "Electromagnetic form factors of the nucleon in the space-like region are investigated within the framework of a covariant and confining Nambu-Jona-Lasinio model. The bound state amplitude of the nucleon is obtained as the solution of a relativistic Faddeev equation, where diquark correlations appear naturally as a consequence of the strong coupling in the colour $bar{3}$ $qq$ channel. Pion degrees of freedom are included as a perturbation to the quark-core contribution obtained using the Poincar'e covariant Faddeev amplitude. While no model parameters are fit to form factor data, excellent agreement is obtained with the empirical nucleon form factors (including the magnetic moments and radii) where pion loop corrections play a critical role for $Q^2 lesssim 1,$GeV$^2$. Using charge symmetry, the nucleon form factors can be expressed as proton quark sector form factors. The latter are studied in detail, leading, for example, to the conclusion that the $d$-quark sector of the Dirac form factor is much softer than the $u$-quark sector, a consequence of the dominance of scalar diquark correlations in the proton wave function. On the other hand, for the proton quark sector Pauli form factors we find that the effect of the pion cloud and axialvector diquark correlations overcomes the effect of scalar diquark dominance, leading to a larger $d$-quark anomalous magnetic moment and a form factor in the $u$-quark sector that is slightly softer than in the $d$-quark sector." @default.
- W2073973923 created "2016-06-24" @default.
- W2073973923 creator A5006748411 @default.
- W2073973923 creator A5018833451 @default.
- W2073973923 creator A5077862670 @default.
- W2073973923 date "2014-10-06" @default.
- W2073973923 modified "2023-10-18" @default.
- W2073973923 title "Role of diquark correlations and the pion cloud in nucleon elastic form factors" @default.
- W2073973923 cites W1501150631 @default.
- W2073973923 cites W1557002656 @default.
- W2073973923 cites W1581228648 @default.
- W2073973923 cites W1661734537 @default.
- W2073973923 cites W1811849583 @default.
- W2073973923 cites W1846482590 @default.
- W2073973923 cites W1952510669 @default.
- W2073973923 cites W1967167699 @default.
- W2073973923 cites W1973441513 @default.
- W2073973923 cites W1977761076 @default.
- W2073973923 cites W1978401765 @default.
- W2073973923 cites W1980416430 @default.
- W2073973923 cites W1981622532 @default.
- W2073973923 cites W1984478853 @default.
- W2073973923 cites W1987939496 @default.
- W2073973923 cites W1989494434 @default.
- W2073973923 cites W1989687627 @default.
- W2073973923 cites W1990601322 @default.
- W2073973923 cites W1991553750 @default.
- W2073973923 cites W1998170594 @default.
- W2073973923 cites W1998909324 @default.
- W2073973923 cites W2000369662 @default.
- W2073973923 cites W2007552184 @default.
- W2073973923 cites W2008082416 @default.
- W2073973923 cites W2012922160 @default.
- W2073973923 cites W2013199799 @default.
- W2073973923 cites W2014659195 @default.
- W2073973923 cites W2018182648 @default.
- W2073973923 cites W2019311949 @default.
- W2073973923 cites W2019782726 @default.
- W2073973923 cites W2021542324 @default.
- W2073973923 cites W2024690042 @default.
- W2073973923 cites W2027081732 @default.
- W2073973923 cites W2028453115 @default.
- W2073973923 cites W2029795998 @default.
- W2073973923 cites W2030082271 @default.
- W2073973923 cites W2033887574 @default.
- W2073973923 cites W2036238899 @default.
- W2073973923 cites W2038645548 @default.
- W2073973923 cites W2040795034 @default.
- W2073973923 cites W2041233564 @default.
- W2073973923 cites W2054043052 @default.
- W2073973923 cites W2056262547 @default.
- W2073973923 cites W2056701546 @default.
- W2073973923 cites W2056901148 @default.
- W2073973923 cites W2058385665 @default.
- W2073973923 cites W2063141776 @default.
- W2073973923 cites W2064134560 @default.
- W2073973923 cites W2081546224 @default.
- W2073973923 cites W2084357436 @default.
- W2073973923 cites W2086004598 @default.
- W2073973923 cites W2087970005 @default.
- W2073973923 cites W2088986674 @default.
- W2073973923 cites W2089194521 @default.
- W2073973923 cites W2089474415 @default.
- W2073973923 cites W2090689392 @default.
- W2073973923 cites W2093007656 @default.
- W2073973923 cites W2095200836 @default.
- W2073973923 cites W2096552739 @default.
- W2073973923 cites W2100047188 @default.
- W2073973923 cites W2102136034 @default.
- W2073973923 cites W2109482459 @default.
- W2073973923 cites W2113632273 @default.
- W2073973923 cites W2117973408 @default.
- W2073973923 cites W2118402852 @default.
- W2073973923 cites W2119046329 @default.
- W2073973923 cites W2119098569 @default.
- W2073973923 cites W2121160050 @default.
- W2073973923 cites W2130776923 @default.
- W2073973923 cites W2140142256 @default.
- W2073973923 cites W2140301631 @default.
- W2073973923 cites W2146955158 @default.
- W2073973923 cites W2155611565 @default.
- W2073973923 cites W2158698650 @default.
- W2073973923 cites W2161400968 @default.
- W2073973923 cites W2162363964 @default.
- W2073973923 cites W2169768395 @default.
- W2073973923 cites W2170028736 @default.
- W2073973923 cites W2181594913 @default.
- W2073973923 cites W2212211680 @default.
- W2073973923 cites W2247613014 @default.
- W2073973923 cites W23299686 @default.
- W2073973923 cites W2331200118 @default.
- W2073973923 cites W2802066523 @default.
- W2073973923 cites W2964167530 @default.
- W2073973923 cites W3099469289 @default.
- W2073973923 cites W3099680838 @default.
- W2073973923 cites W3101379705 @default.
- W2073973923 cites W3103514354 @default.
- W2073973923 cites W3105547652 @default.
- W2073973923 cites W3106198423 @default.
- W2073973923 cites W4236111347 @default.