Relativistic spin precession in homogeneous background fields
The Bargmann-Michel-Telegdi equation, which describes the precession of the spin of a charged Dirac particle moving in a homogeneous electromagnetic field, is generalized to include also other homogeneous background fields. The treatment incorporates observable coefficients that govern operators of...
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| Format: | Article |
| Language: | English |
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Elsevier
2025-08-01
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| Series: | Physics Letters B |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S037026932500365X |
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| author | Yunhua Ding V. Alan Kostelecký Arnaldo J. Vargas |
| author_facet | Yunhua Ding V. Alan Kostelecký Arnaldo J. Vargas |
| author_sort | Yunhua Ding |
| collection | DOAJ |
| description | The Bargmann-Michel-Telegdi equation, which describes the precession of the spin of a charged Dirac particle moving in a homogeneous electromagnetic field, is generalized to include also other homogeneous background fields. The treatment incorporates observable coefficients that govern operators of mass dimensions three through six in the underlying Dirac effective field theory. A relativistic formulation valid in arbitrary inertial frames is obtained. The results are applicable to searches for new physics beyond the Standard Model, including searches for Lorentz and CPT violation. |
| format | Article |
| id | doaj-art-4cf575dd4c1b49c3b31bf5a6c4ae4850 |
| institution | DOAJ |
| issn | 0370-2693 |
| language | English |
| publishDate | 2025-08-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Physics Letters B |
| spelling | doaj-art-4cf575dd4c1b49c3b31bf5a6c4ae48502025-08-20T03:05:46ZengElsevierPhysics Letters B0370-26932025-08-0186713960410.1016/j.physletb.2025.139604Relativistic spin precession in homogeneous background fieldsYunhua Ding0V. Alan Kostelecký1Arnaldo J. Vargas2Department of Physics and Astronomy, Ohio Wesleyan University, Delaware, OH 43015, USAPhysics Department, Indiana University, Bloomington, IN 47405, USA; Corresponding author.Laboratory of Theoretical Physics, Department of Physics, University of Puerto Rico, Río Piedras, PR 00936, USAThe Bargmann-Michel-Telegdi equation, which describes the precession of the spin of a charged Dirac particle moving in a homogeneous electromagnetic field, is generalized to include also other homogeneous background fields. The treatment incorporates observable coefficients that govern operators of mass dimensions three through six in the underlying Dirac effective field theory. A relativistic formulation valid in arbitrary inertial frames is obtained. The results are applicable to searches for new physics beyond the Standard Model, including searches for Lorentz and CPT violation.http://www.sciencedirect.com/science/article/pii/S037026932500365X |
| spellingShingle | Yunhua Ding V. Alan Kostelecký Arnaldo J. Vargas Relativistic spin precession in homogeneous background fields Physics Letters B |
| title | Relativistic spin precession in homogeneous background fields |
| title_full | Relativistic spin precession in homogeneous background fields |
| title_fullStr | Relativistic spin precession in homogeneous background fields |
| title_full_unstemmed | Relativistic spin precession in homogeneous background fields |
| title_short | Relativistic spin precession in homogeneous background fields |
| title_sort | relativistic spin precession in homogeneous background fields |
| url | http://www.sciencedirect.com/science/article/pii/S037026932500365X |
| work_keys_str_mv | AT yunhuading relativisticspinprecessioninhomogeneousbackgroundfields AT valankostelecky relativisticspinprecessioninhomogeneousbackgroundfields AT arnaldojvargas relativisticspinprecessioninhomogeneousbackgroundfields |