New physics in spin entanglement
Abstract We propose a theory that preserves spin-summed scattering and decay rates at tree level while affecting particle spins. This is achieved by breaking the Lorentz group in a non-local way that tries avoiding stringent constraints, for example leaving unbroken the maximal sub-group SIM(2). As...
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| Format: | Article |
| Language: | English |
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SpringerOpen
2025-02-01
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| Series: | European Physical Journal C: Particles and Fields |
| Online Access: | https://doi.org/10.1140/epjc/s10052-025-13836-4 |
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| _version_ | 1823861625840467968 |
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| author | Mateusz Duch Alessandro Strumia Arsenii Titov |
| author_facet | Mateusz Duch Alessandro Strumia Arsenii Titov |
| author_sort | Mateusz Duch |
| collection | DOAJ |
| description | Abstract We propose a theory that preserves spin-summed scattering and decay rates at tree level while affecting particle spins. This is achieved by breaking the Lorentz group in a non-local way that tries avoiding stringent constraints, for example leaving unbroken the maximal sub-group SIM(2). As a phenomenological application, this new physics can alter the spins of top-antitop pairs (and consequently their entanglement) produced in pp collisions without impacting their rates. Some observables affected by loops involving top quarks with modified entanglement receive corrections. |
| format | Article |
| id | doaj-art-2be5dd3b2fe14f5da9ea4bb82ecdbc50 |
| institution | Kabale University |
| issn | 1434-6052 |
| language | English |
| publishDate | 2025-02-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | European Physical Journal C: Particles and Fields |
| spelling | doaj-art-2be5dd3b2fe14f5da9ea4bb82ecdbc502025-02-09T12:51:54ZengSpringerOpenEuropean Physical Journal C: Particles and Fields1434-60522025-02-0185211110.1140/epjc/s10052-025-13836-4New physics in spin entanglementMateusz Duch0Alessandro Strumia1Arsenii Titov2Dipartimento di Fisica “Enrico Fermi”, Università di PisaDipartimento di Fisica “Enrico Fermi”, Università di PisaDipartimento di Fisica “Enrico Fermi”, Università di PisaAbstract We propose a theory that preserves spin-summed scattering and decay rates at tree level while affecting particle spins. This is achieved by breaking the Lorentz group in a non-local way that tries avoiding stringent constraints, for example leaving unbroken the maximal sub-group SIM(2). As a phenomenological application, this new physics can alter the spins of top-antitop pairs (and consequently their entanglement) produced in pp collisions without impacting their rates. Some observables affected by loops involving top quarks with modified entanglement receive corrections.https://doi.org/10.1140/epjc/s10052-025-13836-4 |
| spellingShingle | Mateusz Duch Alessandro Strumia Arsenii Titov New physics in spin entanglement European Physical Journal C: Particles and Fields |
| title | New physics in spin entanglement |
| title_full | New physics in spin entanglement |
| title_fullStr | New physics in spin entanglement |
| title_full_unstemmed | New physics in spin entanglement |
| title_short | New physics in spin entanglement |
| title_sort | new physics in spin entanglement |
| url | https://doi.org/10.1140/epjc/s10052-025-13836-4 |
| work_keys_str_mv | AT mateuszduch newphysicsinspinentanglement AT alessandrostrumia newphysicsinspinentanglement AT arseniititov newphysicsinspinentanglement |