dorsal/arxiv
View SchemaA Poincar\'e Covariant Current Operator for Deep Inelastic Structure Functions and Deuteron Electromagnetic Properties
| Authors | F. M. Lev, E. Pace, G. Salme` |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/9812030 |
| URL | https://arxiv.org/abs/nucl-th/9812030 |
Abstract
In front-form dynamics the current operator can be constructed from auxiliary operators, defined in a Breit frame where initial and final three-momenta of the system are directed along the $z$ axis. Poincar\'e covariance constraints reduce for auxiliary operators to the ones imposed only by kinematical rotations around the $z$ axis. Elastic and transition form factors can be extracted without any ambiguity and in the elastic case the continuity equation is automatically satisfied, once Poincar\'e, ${\cal P}$ and ${\cal T}$ covariance, together with hermiticity, are imposed. Applications to deep inelastic structure functions in an exactly solvable model and to the calculation of the deuteron electromagnetic form factors are presented.
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"abstract": "In front-form dynamics the current operator can be constructed from auxiliary\noperators, defined in a Breit frame where initial and final three-momenta of\nthe system are directed along the $z$ axis. Poincar\\\u0027e covariance constraints\nreduce for auxiliary operators to the ones imposed only by kinematical\nrotations around the $z$ axis.\n Elastic and transition form factors can be extracted without any ambiguity\nand in the elastic case the continuity equation is automatically satisfied,\nonce Poincar\\\u0027e, ${\\cal P}$ and ${\\cal T}$ covariance, together with\nhermiticity, are imposed. Applications to deep inelastic structure functions in\nan exactly solvable model and to the calculation of the deuteron\nelectromagnetic form factors are presented.",
"arxiv_id": "nucl-th/9812030",
"authors": [
"F. M. Lev",
"E. Pace",
"G. Salme`"
],
"categories": [
"nucl-th"
],
"title": "A Poincar\\\u0027e Covariant Current Operator for Deep Inelastic Structure Functions and Deuteron Electromagnetic Properties",
"url": "https://arxiv.org/abs/nucl-th/9812030"
},
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