New physics in spin entanglement.
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| Title: | New physics in spin entanglement. |
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| Authors: | Duch, Mateusz1,2 (AUTHOR) mateusz.duch@df.unipi.it, Strumia, Alessandro1 (AUTHOR) alessandro.strumia@unipi.it, Titov, Arsenii1,2 (AUTHOR) arsenii.titov@df.unipi.it |
| Source: | European Physical Journal C -- Particles & Fields. Feb2025, Vol. 85 Issue 2, p1-11. 11p. |
| Subjects: | Lorentz groups, Top quarks, Particle spin, Physics, Trees |
| 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. [ABSTRACT FROM AUTHOR] |
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| Database: | Engineering Source |
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| 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. [ABSTRACT FROM AUTHOR] |
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| ISSN: | 14346044 |
| DOI: | 10.1140/epjc/s10052-025-13836-4 |
