Solving the puzzle of the seasonal flux variation of multiple-muon events at the MINOS and NOvA Near Detector

Martes 21 de marzo - 14:00 hs

Estimadas/os,

Quedan todas/os invitadas/os al primer seminario del Ciclo de Coloquios y Seminarios 2023 del IFLP, a realizarse el martes 21 de marzo a las 14hs.

El mismo estará a cargo de la Prof. Eva Santos, del Institute of Physics of the Czech Academy of Sciences, Praga, República Checa.

Su charla será sobre ¨Solving the puzzle of the seasonal flux variation of multiple-muon events at the MINOS and NOvA Near Detector ”, y a continuación enviamos un breve resumen de la misma:

Muons are the best messengers of the hadronic interactions in extensive air showers occurring high in the atmosphere, out of reach for arrays of particle detectors. Of relevance is the flux of high-energy muons measured by many underground experiments. The explanation for the observed seasonal variations in the flux of multiple-muon events measured by the MINOS and NOvA Near Detectors still puzzles researchers. Although Monte Carlo simulations can reasonably describe the overall muon flux observed in several experiments, accurately modeling the seasonal variation of multiple-muon events remains challenging. In a recent study, Gaisser and Verpoest used CORSIKA simulations to predict the amplitude of multiple-muon events at the NOvA Near Detector. However, their predicted values were a factor of four lower than what was observed.
Using FLUKA simulations, we were able, for the first time, to quantitatively describe the seasonal differences in the fluxes of single and multiple-muon events. Since most of these events should come from cosmic ray energies with E ~ 1015 eV, we do not expect significant systematic uncertainties from hadronic interaction model predictions. We investigate whether inaccuracies in the Monte Carlo simulations, such as the modeling of the atmosphere, may be responsible for the observed discrepancies.

El seminario tendrá lugar en el auditorio del IFLP, sito en la diagonal 113 entre 63 y 64..

Para quienes no puedan asistir en forma presencial tendrán la opción de seguirla por el canal de youtube del instituto

https://www.youtube.com/channel/UC5TjsUrIuVU6BobUdIFyHAg

Esperamos contar con su participación.

Solving the puzzle of the seasonal flux variation of multiple-muon events at the MINOS and NOvA Near Detector

INSTITUTO DE FÍSICA LA PLATA - CONICET/ UNLP