Particle Physics Day 2021

Tuesday 16 Nov 2021, 10:40 → 18:00 Europe/Helsinki

Eija Tuominen (Helsinki Institute of Physics (FI)), Hannu Paukkunen, Hannu Paukkunen (University of Jyväskylä), Henning Kirschenmann (Helsinki Institute of Physics (FI)), Mikko Voutilainen (Helsinki Institute of Physics (FI)), Sami Sakari Rasanen (Helsinki Institute of Physics (FI)), Sami Sakari Rasanen (University of Jyvaskyla (FI))

Annual meeting of the Particle Physics Division of the Finnish Physical Society

This is in-person meeting in Jyväskylä's Paviljonki.

Previous meetings linked from PP Division home pages and instructions to sign up to pp-findiv list:

https://www.mv.helsinki.fi/home/hitu_www/partdiv.html

10:40 → 11:00 Morning coffee

11:00 → 12:30 Morning session: Standard Model and Beyond

Convener: Henning Kirschenmann (Helsinki Institute of Physics (FI))

11:00 CMS+TOTEM Run 2 results and Run 3 start

Speaker: Tapio Lampen (Helsinki Institute of Physics (FI))

CMSTOTEM_PPD2021_TL_v2.pdf

11:30 BSM summary

Speaker: Kimmo Tuominen (University of Helsinki)

PPD2021_bsm.pdf

12:00 Pixel detector upgrade

Speaker: Jens Erik Brucken (Helsinki Institute of Physics (FI))

20211116_PPD_CMSPixelUpgrade.pdf

12:30 → 13:30 Buffet lunch

13:30 → 15:00 Afternoon session: Quark Matter

Convener: Sami Sakari Rasanen (University of Jyvaskyla (FI))

13:30 ALICE overview

Speaker: Dong Jo Kim (University of Jyvaskyla (FI))

PPD2021_alice_djkim.pdf

14:00 ALICE FoCal - first results from 2021 test beam

Speaker: Heidi Maria Rytkonen (University of Jyvaskyla (FI))

PPD_2021-rytkonen.pdf

14:15 Exclusive vector meson production as a probe of gluon saturation

Speakers: Heikki Mäntysaari (University of Jyvaskyla (FI)), Heikki Mäntysaari (University of Jyväskylä)

ppday_mantysaari.pdf

14:40 Gluon PDF from low x central exclusive production data

Speakers: Dr Chris Flett (University of Jyväskylä), Dr Chris Flett (University of Jyväskylä)

Particle_Physics_Day_2021.pdf

15:00 → 15:30 Afternoon coffee

15:30 → 17:00 Evening session: Cosmic Connections

Convener: Hannu Paukkunen (University of Jyväskylä)

15:30 COSINUS

Dark matter search using cryogenic scintillating NaI calorimeter to provide model-independent cross-check of DAMA/LIBRA

Speaker: Matti Heikinheimo (Helsinki Institute of Physics)

cosinus.pdf

16:00 MoEDAL

Monopole and Exotics Detector at the LHC

Speaker: Matti Kalliokoski (Helsinki Institute of Physics (FI))

Kalliokoski_MoEDAL_PPD21.pdf

16:25 When axion cosmology meets the SUBARU HSC data

This talk is based on arXiv:2109.13153 [hep-ph] (accepted for publication in PRD). Please find a more detailed abstracts saved in "minutes" of this contribution.

Speaker: ENRICO D. SCHIAPPACASSE (University of Jyväskylä)

ParticlePhysicsDay_EDS.pdf

I careful analyze different scenarios for the QCD axion to determine the real chances that the single microlensing candidate detected by the Subaru HSC survey is sourced by Bose-Einstein Condensates (BECs) of QCD axion. Such astrophysical objects are known as axion stars or axion clumps and may compose today a sizeable fraction of the dark matter in galactic halos. Depending on the Peccei-Quinn symmetry breaking scale versus the scale of inflation and the details of the dark matter scenario under study, QCD axion clumps may form via three main mechanisms: thermalization and gravitational condensation during radiation domination, nucleation in the dense core of axion miniclusters, or nucleation within ultracompact minihalos around primordial black holes. Considering aspects such as axion clump masses and source magnifications, I conclude that the microlensing candidate found in the Subaru HSC data is likely not caused by QCD axion stars in standard cosmologies. This talk is based on arXiv:2109.13153 [hep-ph] (accepted for publication in PRD).

16:45 Relativistic fluid dynamics in heavy-ion collisions

Speaker: Harri Niemi (University of Jyväskylä)

niemi_hitu2021.pdf

17:10 → 18:00 Agenda: Division meeting

1. Opening of the meeting, choosing the chair and secretary, and two persons for counting votes
2. Accepting the agenda
3. Choosing the board
4. Activity of the division 2020-2021
5. Meetings organized in Finland 2020-2021
6. Meetings to be organized in Finland 2021-2022
7. RECFA representative report
8. ECFA ECR representatives report
9. AOB
10. Closing the meeting

Convener: Mikko Voutilainen (Helsinki Institute of Physics (FI))

Last 2020 minutes

New 2021 agenda (commentable)