The first announcement of the twenty-fourth workshop

“What Comes Beyond the Standard Models?"

Organizing Committee:

Norma Susana Mankoč Borštnik

Holger Bech Nielsen

Maxim Yu. Khlopov

Please click here for the follow-up page (including talks and Proceedings)

We have successfully concluded the 24^{th} International Workshop

Please click on the poster to open the presentation slide show.

This workshop had traditionally taken place at Plemelj's Villa in Bled, which is owned by the Society of Mathematicians, Physicists and Astronomers of Slovenia.

This year's workshop was held
at a distance (using Zoom), from ** July 5 ^{th} to July 11^{th}, 2021 (Monday to Sunday).**

We will also prepare the Proceedings
with contributions of the participants, to be
published in December 2021 (deadline

for the contributions being early November 2021).

Like last year, this year's virtual workshop was also organized with rhe help of cosmovia (Astroparticle Physics Center, Paris, France, Prof. Maxim Yu. Khlopov), but this year we used Zoom as the conference platform.

Some of you have already participated at this workshop and know it. Others may find the following links of interest:

- home page of the 2020 workshop containing workshop announcements and presentations of most talks with pdf of the Workshop Proceedings (vol. 1 and vol. 2) also available (links to workshop pages for previous years can be found here);
- home page of VIA (Virtual Institute of
Astroparticle Physics)which hosts video conferences at our

conferences for the last several years, courtesy of Prof. Maxim Yu. Khlopov (on the cosmovia home page click 'enter', then go to the link for older conferences; pdf files of proceedings can also be found there); - Proceedings of our workshops are also available at arxiv.org; proceedings for the last six years are available there as (index submissions) arXiv:1403.4441 (2013), arXiv:1502.06786 (2014), arXiv:1605.03406 (2015), arXiv:1703.09699 (2016), arXiv:1806.01629 (2017), arXiv:1902.10628 (2018) and arXiv:2012.09639 (2019).

Our workshop is organized for the purpose of answering the open questions in the standard model of the electroweak and colour interactions, and the cosmological standard model, like (every participant can suggest a new topic):

o What is the most promising first step beyond the standard model, explaining the assumptions of the standard model like:

* the origin of massless family members with their related spin and charges,

* the origin of families of fermions - quarks and leptons,

* the origin of massless vector gauge fields,

* the origin of the Higgs's scalar and Yukawa couplings for quarks and leptons,

* the origin of differences in masses of family members?

o And going beyond, while explaining:

* the origin of dark matter and its properties (when comparing cosmological observation, direct detections and all the proposed models),

* the masses and charges of the dark matter,

* the contribution of primordial black holes to the dark matter,

* the origin of the dark energy,

* the origin of ordinary matter-antimatter asymmetry.

o How to interpret the so far made searches for new physics?

* How many families shall we be able to observe at the LHC and at which energies?

* How many scalar fields shall the LHC observe?

* What are masses of new families?

* What are properties of new scalar fields?

o What properties has the dark matter?

* What are masses and charges of the dark matter?

* Are there charge asymmetries in the dark matter?

* Do primordial black holes contribute to the dark matter?

o Origin of the lepton number nonconservation:

* What can different models and experiments say about the lepton number nonconservation?

o What is the origin of the two energy scales:

* the colour phase transition scale and

* the electroweak phase transition scale?

o What can strings and membranes contribute to our understanding of elementary particle physics and cosmology?

* What do string theories really mean?

o What does the complex action bring into the understanding of the properties of our universe?

o What can we learn from the model in which all fermions have come by fermionization from original bosons?

o Why has Nature made a choice of four (noticeable) dimensions while all the others (if existing) are hidden?

* How does the compactification occur?

* What are properties of space-time in the hidden dimensions?

o How can one understand the discrete symmetries in Kaluza-Klein like theories?

o How can all gauge fields (including gravity and scalar fields) be unified and quantized?

o What is the origin of the field which caused inflation?

o What can new measurements of gravitational waves contribute to understanding the cosmology (and elementary fields)?

o Quantum mechanics and the black hole singularity?

o The role of black holes in the history of the universe.

o Could the fermions have the integer spin and yet be second quantized fields, obeying the Pauli principle?

o Can one observe the phenomena of high energy physics at solid or fluid at low temperature?

o Many other open problems.

The aim of the workshop is to bring together physicists, who are
trying to find the answers to some of these and other open questions
from the field of the elementary particles and cosmology and who would
enjoy to actively discuss these questions in a small group.

In the last twenty two years we have organized workshops entitled “What Comes Beyond the Standard Models?" They took place annually in
July since 1998, except 2018, which was in June. Each year we spent about ten days, trying to answer
these questions in a very pleasant and relaxing atmosphere. We have
published twenty volumes of Proceedings to these workshops (one in
1999, and then one volume every year since 2001). In the year 2003 we
have also organized, in addition and with the help of EURESCO, the
conference titled "Euroconference on symmetries beyond the Standard
models" from 12. -- 17. of July 2003 in Portorož,Slovenia. Proceedings
volume published in 2003 contains write-ups of the talks at this
conference.

The workshop is organized by the DMFA (Society of Mathematicians, Physicists and Astronomers of Slovenia). The workshop is sponsored by DMFA and the Department of Physics, FMF, University of Ljubljana with the computer equipment. We are also grateful to VIA, Beyond Semiconductor, journal Symmetry by MDPI, journal Physics by MDPI and journal Universe by MDPI for sponsoring our workshop.

Thank you for your attention and best regards,

Workshop Organizing Committee:

Prof. Norma Susana Mankoč Borštnik, Prof. Holger Bech Nielsen, Prof. Maxim Yu. Khlopov