PublicaciΓ³n:
Interpretation of the LHCb 𝑃𝑐⁒(4312)+ Signal

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2019-08-29
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info:eu-repo/semantics/openAccess
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American Physical Society
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We study the nature of the new signal reported by LHCb in the 𝐽/πœ“β’π‘ spectrum. Based on the 𝑆-matrix principles, we perform a minimum-bias analysis of the underlying reaction amplitude, focusing on the analytic properties that can be related to the microscopic origin of the 𝑃𝑐⁒(4312)+ peak. By exploring several amplitude parametrizations, we find evidence for the attractive effect of the Ξ£+𝑐⁒¯𝐷0 channel, which is not strong enough, however, to form a bound state.
DescripciΓ³n
The registered version of this article, first published in β€œPhysical Review Letters, 123(9)092001", is available online at the publisher's website: American Physical Society, https://doi.org/10.1103/PhysRevLett.123.092001
La versiΓ³n registrada de este artΓ­culo, publicado por primera vez en β€œPhysical Review Letters, 123(9)092001", estΓ‘ disponible en lΓ­nea en el sitio web del editor: American Physical Society, https://doi.org/10.1103/PhysRevLett.123.092001
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CitaciΓ³n
FernΓ‘ndez-RamΓ­rez, Pilloni, Albaladejo, Mathieu, Mikhasenko, Silva-Castro, & Szczepaniak. (2019). Interpretation of the LHCb Pc (4312)+ Signal. Physical Review Letters, 123(9). https://doi.org/10.1103/PHYSREVLETT.123.092001
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Facultades y escuelas::Facultad de Ciencias
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FΓ­sica Interdisciplinar
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