FYI, Seminar at ULB on Friday at 11:00.

#---------------------------------------------------------------------# Alberto Mariotti Vrije Universiteit Brussel (VUB) https://we.vub.ac.be/HEPVUB Phone: +32 (0) 2 629 32 15 E-mail: alberto.mariotti@vub.be Address: Vrije Universiteit Brussel Physics Department Elementary Particles Research Group Pleinlaan 2, 1050 Brussels, Belgium #---------------------------------------------------------------------#

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From: FACCHINETTI Gaëtan gaetan.facchinetti@ulb.be Subject: ULB PhysTH Seminar by Andrea Caputo - 24/05/2024 at 11 am Date: 21 May 2024 at 10:11:12 CEST To: GRP_ULB_PhysTh GRP_phys_th@ulb.be, GRP_ULB_Sem_Add GRP_physth_sem@ulb.be Resent-From: alberto.mariotti@vub.be

Dear All,

We are happy to announce that Andrea Caputo (CERN) will give us a seminar this Friday, the 24th of May, at 11am in room 2.N7.110 (building NO, campus Plaine). His presentation will be about

Axion hunting using (proto)-neutron stars In this talk I will describe some new ideas to discover (or constrain) new hypothetical particles, such as axions and axion-like particles. In the first part of the talk, in particular, I will show how we can use luminosity curves and spectra of low-energy supernovae to detect exotic energy injection due to particles produced in the newborn proto neutron star. Then, in the second part of the talk, I will advance the clock in the life of the neutron star and study the impact on new particles on the cooling of old neutron stars and the dynamics of the magnetosphere.

Best regards,

Gaétan (for the seminar organizers)

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