Dear All,
I'm happy to announce the seminar of Yann Gouttenoire (Tel Aviv University) next week Tuesday 27 June at 14:00 in the room G.1.03 - J. Sacton (Building G) at IIHE.
Here the webpage of the event:
https://indico.iihe.ac.be/event/1797/
Yann will talk about:
Title:
Primordial black holes from supercooled phase transition and implications for Pulsar Timing Arrays
Abstract:
Cosmological first-order phase transitions are said to be supercooled when the nucleation temperature is much smaller than the critical temperature. They are typical of potentials which feature nearly scale-invariance, for which the bounce action decreases only logarithmically with time. The phase transition takes place slowly and the probability distribution of bubble nucleation time is maximally spread. Hubble patches which get percolated later than the average are hotter than the background after reheating and potentially collapse into primordial black holes (PBH). In the first part of the talk, I will discuss the formation of PBH by supercooled phase transitions. In the second part, I will discuss the search for supercooled phase transitions in pulsar timing arrays and how it affects the search for PBH in LIGO-Virgo.
Yann will be visiting us from Tuesday to Friday, so there will be plenty of time for discussions.
Best,
Alberto
#---------------------------------------------------------------------#
Alberto Mariotti
Vrije Universiteit Brussel (VUB)
https://we.vub.ac.be/HEPVUB
Phone: +32 (0) 2 629 32 15
E-mail: alberto.mariotti(a)vub.be
Address: Vrije Universiteit Brussel
Physics Department
Elementary Particles Research Group
Pleinlaan 2, 1050 Brussels, Belgium
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Hello everyone,
next JC by Hannah on Tuesday 2pm in the Lemonne room, who will talk about the ability of LIGO and LISA to probe the equation of state in the early universe https://arxiv.org/pdf/1905.11960.pdf .
Hope to see you there,
Best,
Miguel
Hi All,
an interesting workshop about axions.
Cheers,
Alberto
> Begin forwarded message:
>
> From: Diego Guadagnoli <diego.guadagnoli(a)lapth.cnrs.fr <mailto:diego.guadagnoli@lapth.cnrs.fr>>
> Subject: axions++ workshop, Sep. 25-28, 2023, Annecy
> Date: 15 June 2023 at 22:44:44 GMT+2
> To: Alberto Mariotti <alberto.mariotti(a)vub.be <mailto:alberto.mariotti@vub.be>>
> Resent-From: <alberto.mariotti(a)vub.be <mailto:alberto.mariotti@vub.be>>
>
>
> ___________________________________________________________
> Subject: Workshop axions++, 25-28 Sept 2023, Annecy, France
>
>
> The workshop axions++ will take place in Annecy, France, from the 25th to the 28th of September, 2023.
>
> The workshop is aimed at providing a sweeping snapshot of the most topical aspects in the theory, phenomenology and experiments on axions and other light particles (that's the ++).
>
> The workshop includes one day (i.e. two successive half days) of invited lectures (1h 15' each) providing broad and accessible overviews on all the core topics, followed by two days of invited and contributed talks.
>
> We aim for a truly collaborative atmosphere, with ample room for discussions.
>
> The lectures topics are:
>
> • Theory motivations for light new particles (John March-Russell, Oxford Univ.)
> • Axions and gravity (Georgi Dvali, MPI Munich & NYU)
> • Experimental landscape for axions and other light particles (Julia K. Vogel, Zaragoza)
> • HEP phenomenology of axions and other light particles (Veronica Sanz, Sussex and Valencia)
> • Astrophysical aspects (Maurizio Giannotti, Barry Univ.)
> • Axions and gravitational waves (Valerie Domcke, CERN TH Dept.)
>
> After the lectures, a number of talks, of which some are invited, will present topical research results in the theory, phenomenology and experiments on axions and other light particles.
>
> The workshop's indico page
>
> https://indico.in2p3.fr/e/axionsplusplus2023 <https://indico.in2p3.fr/e/axionsplusplus2023>
>
> is open for registration and abstract submission. We anticipate one or more dedicated sessions for young researchers (PhD students and early-career postdocs), and thus strongly encourage them to submit talk proposals.
>
> Registration is subject to approval due to the limited capacity of the venue.
>
> Deadline for registration and abstract submission is the 5th of July 2023.
> Notification of abstract acceptance will follow a few weeks after the deadline.
>
> Hoping to see many of you in beautiful Annecy!
>
> The organizers
> Francesca Calore
> Christopher Eckner
> Mark Goodsell
> Diego Guadagnoli
> Jérémie Quevillon
> Christopher Smith
> Ludovico Vittorio
>
> PS: apologies if you received this announcement more than once.
> _______________________________________________________________
>
#---------------------------------------------------------------------#
Alberto Mariotti
Vrije Universiteit Brussel (VUB)
https://we.vub.ac.be/HEPVUB <https://we.vub.ac.be/HEPVUB>
Phone: +32 (0) 2 629 32 15
E-mail: alberto.mariotti(a)vub.be
Address: Vrije Universiteit Brussel
Physics Department
Elementary Particles Research Group
Pleinlaan 2, 1050 Brussels, Belgium
#---------------------------------------------------------------------#
> Begin forwarded message:
>
> From: Eucapt Secretariat <Eucapt.secretariat(a)cern.ch <mailto:Eucapt.secretariat@cern.ch>>
> Subject: EuCAPT School
> Date: 8 June 2023 at 14:01:24 GMT+2
> To: "EuCAPT-members (EuCAPT-members)" <EuCAPT-members(a)cern.ch <mailto:EuCAPT-members@cern.ch>>
> Resent-From: <alberto.mariotti(a)vub.be <mailto:alberto.mariotti@vub.be>>
>
> Dear Colleagues,
>
> we are delighted to announce that registration is now open for the first EuCAPT School,
> to be held at the
> Botanical Gardens of the University of Valencia from the 18th to the 22nd of September,
> 2023.
>
> The School is designed for Master and PhD Students as well early career researchers
> working in the areas of cosmology and astro-particle physics. The training program combines
> scientific and soft-skills components. The School website can be found at
>
> https://eucaptcosmo.blogs.uv.es/ <https://eucaptcosmo.blogs.uv.es/>
>
> Scientific program (approximately 2/3 of the lectures):
> inflation, primordial black holes, gravitational waves, dark energy, amplitudes in
> cosmology, data analysis/statistical methods, lattice simulations.
> Confirmed speakers include:
> -- Daniel Figueroa (CSIC – University of Valencia)
> -- Alessandra Silvestri (University of Leiden)
> -- Andrew Tolley (Imperial College London)
> -- David Wands (ICG, University of Portsmouth)
> ***Additional speakers will be announced in the coming weeks (please check the website
> for updates).
>
> Soft-skills program (approximately 1/3 of the lectures):
> effective communication (oral, written/digital), communication and interaction skills
> that favor teamwork, organization and time management, conflict management and negotiation,
> leadership.
>
> The school will have no registration fee and will amount to a study load of 3 ECTS.
>
> We would kindly ask you to please forward this message to any young researchers who may
> be interested in attending.
>
> Kind regards,
>
> Gabriela Barenboim (on behalf of the organizers)
>
> ------------------------------------------------------
> Gabriela Barenboim Gabriela.Barenboim(a)uv.es <mailto:Gabriela.Barenboim@uv.es>
> Departamento de Fisica Teorica & IFIC (UV - CSIC)
> Universidad de Valencia te (34) 96 354 3023
> Av. Moliner 50 96 354 4349
> Burjassot, E-46100 fax (34) 96 354 3381
> ------------------------------------------------------
Hello everyone,
next JC on the tuesday 06/06 in the Lemonne room at 2.30 pm. Simone will talk about https://arxiv.org/abs/2305.09712 Gravitational wave signature of reheating.
Hope to see you there,
Miguel
