New physics in spin entanglement
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arXiv
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| Main Authors: | , , |
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| Format: | Preprint |
| Published: |
2024
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| _version_ | 1866915114823712768 |
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| author | Duch, Mateusz Strumia, Alessandro Titov, Arsenii |
| author_facet | Duch, Mateusz Strumia, Alessandro Titov, Arsenii |
| contents | 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 | Preprint |
| id |
arxiv_https___arxiv_org_abs_2403_14757 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | New physics in spin entanglement Duch, Mateusz Strumia, Alessandro Titov, Arsenii High Energy Physics - Phenomenology High Energy Physics - Experiment High Energy Physics - Theory Quantum Physics 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. |
| title | New physics in spin entanglement |
| topic | High Energy Physics - Phenomenology High Energy Physics - Experiment High Energy Physics - Theory Quantum Physics |
| url | https://arxiv.org/abs/2403.14757 |