- Hep-pheno - listserv.vub.be

Fwd: ULB PhysTH Seminar by Hyungjin Kim - 01/12/2023 at 11 am
by Alberto Mariotti 30 Nov '23

30 Nov '23

Hi guys, interesting seminar on Friday at 11 at ULB. Cheers, 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 #---------------------------------------------------------------------# > Begin forwarded message: > > From: VERMA Sonali <sonali.verma(a)ulb.be> > Subject: ULB PhysTH Seminar by Hyungjin Kim - 01/12/2023 at 11 am > Date: 28 November 2023 at 13:47:51 CET > To: GRP_ULB_Sem_Add <GRP_physth_sem(a)ulb.be>, GRP_ULB_PhysTh <GRP_phys_th(a)ulb.be> > Resent-From: <alberto.mariotti(a)vub.be> > > Dear All, > > This Friday, at 11 am the 01st of December, we will have the pleasure of welcoming Hyungjin Kim (DESY Hamburg) who will give us a seminar in room 2.N7.110 (building NO, campus Plaine). Hyungjin will tell us about > > "Probing fluctuations of ultralight dark matter with gravitational wave detectors" > > Ultralight dark matter is a compelling dark matter candidate. Recent numerical simulations have shown that it exhibits large-scale order-one density fluctuations due to wave interference. These density fluctuations could be understood as a quasiparticle whose size and mass could be of astronomical values. In this talk, I will discuss how these density fluctuations interact with gravitational wave (GW) detectors and the prospects of current and future GW detectors in probing dark matter density within or near the solar system. I will show that with future GW detectors, we could probe a few hundred times the local dark matter density within the solar system. > > Best regards, > Sonali > Gaétan > > > > > You're receiving this message because you're a member of the GRP_ULB_Sem_Add group from Université Libre de Bruxelles. To take part in this conversation, reply all to this message. > > View group files <https://outlook.office365.com/owa/GRP_physth_sem@ulb.be/groupsubscription.a…> | Leave group <https://outlook.office365.com/owa/GRP_physth_sem@ulb.be/groupsubscription.a…> | Learn more about Microsoft 365 Groups <https://aka.ms/o365g>

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JC 28/11 2pm (tomorrow)
by Miguel Vanvlasselaer 27 Nov '23

27 Nov '23

Dear everyone, JC tomorrow by Kevin on The unresolved stochastic background from compact binary mergers detectable by next-generation ground-based gravitational-wave observatories. This will be based on the paper [2310.02517] (arxiv.org)<https://aps.arxiv.org/abs/2310.02517> in the Sancton room tomorrow at 2pm. Best, hope to see you there, Miguel

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seminar of Noam Levi tomorrow at 14:00
by Alberto Mariotti 20 Nov '23

20 Nov '23

Dear All, this is a last minute announcement of a seminar for tomorrow Tuesday November 21 at 14:00 in the large seminar room 1G003 at the IIHE. Noam Levi (EPFL) will talk about "Supercooling window at weak and strong coupling" https://indico.iihe.ac.be/event/1855/ <https://indico.iihe.ac.be/event/1855/> Please share this announcement with possible interested people in your group. See you all there, Best, AM #---------------------------------------------------------------------# 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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Fwd: EuCAPT Colloquium Tue Nov 14th 15.00 CET: Cosmology with gravitational-wave standard sirens, Nicola Tamanini
by Alberto Mariotti 09 Nov '23

09 Nov '23

FWI Also see below the planned colloquia in the next year. Ciao, A #---------------------------------------------------------------------# 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 #---------------------------------------------------------------------# > Begin forwarded message: > > From: Andrew Taylor <andrew.taylor(a)desy.de> > Subject: EuCAPT Colloquium Tue Nov 14th 15.00 CET: Cosmology with gravitational-wave standard sirens, Nicola Tamanini > Date: 9 November 2023 at 13:12:57 CET > To: EuCAPT-members(a)cern.ch > Resent-From: <alberto.mariotti(a)vub.be> > > Dear All, > > We are very pleased to announce the first colloquium in the EuCAPT virtual colloquia series for this academic year. > > The colloquium is scheduled at 15.00 CET on Tuesday, November 14: > > TITLE: Cosmology with gravitational-wave standard sirens > SPEAKER: Nicola Tamanini, Laboratoire des 2 Infinis-Toulouse, France > > ABSTRACT: Gravitational-wave (GW) cosmology has recently been established as a new observationally-driven research field, and is expected to expand rapidly in the future thanks to the increasing number of ever more accurate GW observations. In this talk I will review the current status of GW cosmological results and will survey the expectations for the future. I will first introduce the concept of "standard siren” reviewing its theoretical foundations and phenomenological applications. Standard sirens represent the most common methodology employed to extract cosmological information from GW data, including new tests of LCDM which cannot be performed with standard electromagnetic observations. I will then show how these methods are employed to produce cosmological constraints with current GW data collected by LIGO and Virgo, and how they will usher an era of precise GW cosmology with next generation GW observatories, such as the Einstein Telescope on the Earth and LISA in space. > > Full details (including zoom link): https://indico.cern.ch/category/12056/ <https://indico.cern.ch/category/12056/>. > > Best regards, > > Alessandra Silvestri > (on behalf of the EuCAPT colloquium task force) > > ************************************************************************************************* > > Calendar of upcoming EuCAPT virtual colloquia > (also available at https://indico.cern.ch/category/12056/ <https://indico.cern.ch/category/12056/>) > > > 12th December - speaker: Elisa Resconi (Technical University of Munich, Germany); topic: NGC1068 as a neutrino source > > 9th January - speaker: Jocelyn Bell Burnell (University of Oxford, UK); topic: Women in Physics > > 13th February - speaker: Antonella Castellina (INFN Torino, Italy); topic: UHECR recent results > > 12th March - speaker: Paolo Creminelli (ICTP Trieste, Italy); topic: Inflation > > 9th April - speaker: Sam Witte (University of Barcelona, Spain); topic: Axions > > 14th May - speaker: Shinji Mukohyama (Kyoto University, Japan); topic: Dark Energy > > 11th June - speaker: Antonio Riotto (University of Geneva, Switzerland); topic: Primordial Black Holes > > >

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JC 17/10
by Miguel Vanvlasselaer 06 Nov '23

06 Nov '23

Dear all, Next JC tomorrow tuesday at 2 pm in the Sancton room. Xander will talk about Glueball dark matter with https://inspirehep.net/literature/333829 and 1704.01804 . See you, Best, Miguel

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next visitors in our group: book this in your agenda
by Alberto Mariotti 03 Nov '23

03 Nov '23

Dear All, here a list of the visitors/seminar in the coming 4 months, so that we can plan in advance. Sachiko Kuroyanagi (Madrid): 4-8 December 2023 Sokratis Trifinopoulos (MIT): 11-15 December 2023 Germano Nardini, TBC (Stavanger U): 29-31 January 2024 Ville Vaskonen (Tallinn and Padua): 19-21 February 2024 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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Fwd: [allusers-iihe] HEP@VUB seminar: Dylan Frikken on the Radar Echo Telescope
by Alberto Mariotti 02 Nov '23

02 Nov '23

Hi guys, if you want free sandwiches, please register. 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 #---------------------------------------------------------------------# > Begin forwarded message: > > From: Mitja Desmet via allusers-iihe <allusers-iihe(a)listserv.vub.be> > Subject: [allusers-iihe] HEP@VUB seminar: Dylan Frikken on the Radar Echo Telescope > Date: 27 October 2023 at 12:00:00 CEST > To: "hep(a)listserv.vub.be" <hep(a)listserv.vub.be> > Cc: IIHE allusers <allusers-iihe(a)listserv.vub.be> > Reply-To: Mitja Desmet <Mitja.Desmet(a)vub.be> > > Dear all, > > We are happy to announce the return of the HEP@VUB seminars. We will kick off the academic year with a talk by Dylan Frikken from the Ohio State University, who will tell us about the Radar Echo Telescope. This new experiment has recently been deployed in Greenland and promises some exciting developments in the field of astroparticle physics. > > The seminar will be held in the J. Sacton room on the 9th of November at 12h. Drinks and sandwiches will be provided, but we kindly ask you to register beforehand on the Indico page: https://indico.iihe.ac.be/event/1909/ <https://indico.iihe.ac.be/event/1909/> . > > For the organisers, > > > > > MITJA DESMET > PhD Student > Physics Department > T +32 (0)2 629 34 55 > K G.1.59/D1 > > > _______________________________________________ > allusers-iihe mailing list -- allusers-iihe(a)listserv.vub.be <mailto:allusers-iihe@listserv.vub.be> > To unsubscribe send an email to allusers-iihe-leave(a)listserv.vub.be <mailto:allusers-iihe-leave@listserv.vub.be>

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seminar Santiago Jaraba Friday 27 October at 11:00 at VUB
by Alberto Mariotti 25 Oct '23

25 Oct '23

Dear All, I'm happy to announce the seminar of Santiago Jaraba (Madrid IFT) next week Friday 27 October at 11:00 in the room G.1.03 - J. Sacton (Building G) at VUB. Here the webpage of the event: https://indico.iihe.ac.be/event/1851/ Santiago will talk about Title: "Black hole hyperbolic encounters: numerical simulations and stochastic gravitational wave backgrounds" Abstract: "In this seminar, I will discuss hyperbolic encounters between black holes from two perspectives. First, from a numerical-relativity approach, with a focus on the emitted gravitational waves and a comparison to the standard binary black hole (BBH) case. Then, I will touch upon the spin-induction effect these black holes undergo when the encounters are close enough, discussing the consequences this has for the field of primordial black holes. The second part of the talk will concentrate on the stochastic gravitational wave backgrounds these hyperbolic encounters generate, discussing the main differences with the one produced by BBHs and addressing their detectability with current and next-generation detectors." Hope to see you all there, 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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Fwd: ULB PhysTH Seminar by Simon Clery - 10/13/2023 at 11 am
by Alberto Mariotti 18 Oct '23

18 Oct '23

FYI #---------------------------------------------------------------------# 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 #---------------------------------------------------------------------# > Begin forwarded message: > > From: Facchinetti Gaëtan <gaetan.facchinetti(a)ulb.be> > Subject: Re: ULB PhysTH Seminar by Simon Clery - 10/13/2023 at 11 am > Date: 18 October 2023 at 14:23:53 CEST > To: GRP_ULB_PhysTh <GRP_phys_th(a)ulb.be>, GRP_ULB_Sem_Add <GRP_physth_sem(a)ulb.be> > Resent-From: <alberto.mariotti(a)vub.be> > > Dear All, > > This week we have the pleasure to welcome Simon Clery (IJCLab, Université Paris-Saclay) who will give us a seminar on Friday the 20th of October at 11am in room 2.N7.110 (building NO, campus Plaine). He will tell us about > > Gravitational production of matter and radiation during reheating > I present some new results on particle production during the reheating after inflation. We focus on the late-time evolution of the scalar inflationary field, during its coherent oscillation regime. We specifically consider the production of dark matter and radiation, restricting our attention to gravitational interactions, including minimal and non-minimal coupling to gravity. We also consider leptogenesis through the gravitational production of heavy right-handed neutrinos during reheating. > > Best regards, > > Gaétan > > > > Le 13 oct. 2023 à 10:38, TYTGAT Michel <Michel.Tytgat(a)ulb.be> a écrit : > > Dear All, > We have the pleasure to invite you to the seminar by > Dr Aliaksei Kachanovich (Ruđer Bošković Institute, Zagreb) on > 'Flavour-Changing Neutral Current Processes Within the Standard Model and Beyond'. > The seminar is 11:00 am in the room 2 N7 110 (building NO, Campus Plaine). > In this talk, I will discuss the study of rare flavour-changing processes, which can provide us with insights into how we may need to modify or extend the Standard Model to address open problems such as CP-violation in Baryo- and Lepto-genesis, Dark Matter, the strong CP problem, neutrino mass origins, and more. The Standard Model has proven to be a highly successful theory with excellent experimental agreements, and additional forces or effects may manifest themselves in processes where contributions from known forces and effects are exceedingly small. I will primarily focus on two processes: the decay of the Higgs boson into two leptons and a photon, where the main contribution arises from a one-loop, and the decay of B-mesons into Kaons with a mediator to the Dark Sector. This talk is based on my research conducted during my Ph.D. at KIT, Karlsruhe, and during a short-term postdoc at the same institution (e-Prints: 2001.06516, 2003.01788, 2109.04426). > Kind regards, > Michel Ps: sorry for the late announcement. > -- > Michel H.G. Tytgat > Research Director FNRS – Professor ULB > Université Libre de Bruxelles (ULB) > Service de Physique Théorique > CP225, Bld du Triomphe 1050 Brussels, Belgium > +32 (0)2 650 55 70 > michel.tytgat(a)ulb.be > De : Facchinetti Gaëtan <gaetan.facchinetti(a)ulb.be> > Date : lundi, 28 août 2023 à 10:41 > À : GRP_ULB_PhysTh <GRP_phys_th(a)ulb.be>, GRP_ULB_Sem_Add <GRP_physth_sem(a)ulb.be> > Objet : ULB PhysTH Seminar by Maxim Pospelov, 1 sept. 2023 > Dear All, > > Although the days shorten and the temperatures decrease, there is joy in the air for it is the beginning of the academic year and PhysTh seminars will start again. I am happy to announce that the first one will take place next Friday, the 1st of September, between 11am and 12pm. Maxim Pospelov, from the University of Minnesota, will tell us about Standard Model and EDMs (see abstract below). If you receive no further notifications from me, the seminar will take place in our seminar room: 2.N7.110. > Best regards, > Gaétan > > ———————————————— > Abstract > I review the main mechanisms that convert fundamental CP-violating parameters (theta_QCD and Kobayashi-Maskawa phase) to the observable electric dipole moments (EDMs). In light of recent experimental progress, the EDMs connected to electron spin (paramagnetic EDMs) are calculated. The limit on QCD theta angle is 2 * 10^(-8) and somewhat subdominant to neutron EDM, but can be improved. The Kobayashi-Maskawa phase contributes to paramagnetic EDMs at the level of 10^{-35} e cm in units of equivalent electron EDM, which is much larger than what was previously estimated. > ———————————————— > Seminars and Journal Clubs agenda: http://cp3.irmp.ucl.ac.be/PAI/month.php > ================ > ULB PhysTH Seminar by Maxim Pospelov (U. of Minnesota), 'Standard Model and EDMs', Room 2.N7.110 [BEL-center:pheno] > Dates : 1 sept. 2023, 11:00-12:00, UTC+2 > ================ > > > > You're receiving this message because you're a member of the GRP_ULB_Sem_Add group from Université Libre de Bruxelles. To take part in this conversation, reply all to this message. > > View group files <https://outlook.office365.com/owa/GRP_physth_sem@ulb.be/groupsubscription.a…> | Leave group <https://outlook.office365.com/owa/GRP_physth_sem@ulb.be/groupsubscription.a…> | Learn more about Microsoft 365 Groups <https://aka.ms/o365g>

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JC 10/10 2 pm
by Miguel Vanvlasselaer 07 Oct '23

07 Oct '23

Hello everyone, we restart our JC this week on tuesday. I would present the ideas on supercooling within SUSY symmetries with 2104.00747.pdf (arxiv.org)<https://arxiv.org/pdf/2104.00747.pdf> There is still a chance I have to cancel, in such case I would send a message. Best, hope to see you there, Miguel

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