Dear all,
On Tuesday June 18 we will have an IIHE seminar from Dr. Stefan Maier:
"The future CMS Tracking system and its Outer Tracker module concept"
at 14h30 in the Sacton seminar room (G.1.03)
Note the exceptional date on a Tuesday!
Abstract and short bio are below; the event's agenda can be found here:
https://indico.iihe.ac.be/event/1926/
See you there/then,
Pascal and Steven
-----
Abstract:
The talk shortly summarizes the needs to upgrade the current tracking
system of the CMS detector and gives insights on some of the key
features of the future silicon tracker focusing on the novel
double-layered module concept supporting the Level 1 trigger of CMS.
Short Bio:
Stefan Maier graduated in physics at the Karlsruhe Institute of
Technology (KIT) in 2016. His bachelor thesis in 2014 was about the
p-stop concentration in 2S sensors, and his master thesis was about an
alternative CMS outer tracker (OT) upgrade module concept. He then did
his PhD at the Institute of Experimental Particle Physics (ETP) at KIT
in 2019 on the subject of high-rate tests on CBC ships for the CMS OT
upgrade, and module assembly and test procedures. Since then, He is a
Postdoc at the ETP working on the preparation for the OT module assembly
and quality control.
--
Steven Lowette
https://cern.ch/lowette/
Dear all,
On Friday Jun 7 we will have an IIHE seminar from Prof. Dr. Matthias Schott:
"Precision Measurement of the Strong Coupling Constant with Z Boson
Kinematics"
at 14h30 in the Sacton seminar room (G.1.03)
Abstract and short bio are below; the event's agenda can be found here:
https://indico.iihe.ac.be/event/1925/
Have a nice weekend!
Steven.
-----
Abstract:
The strong coupling constant, alphaS, is one of the fundamental
parameters of the Standard Model (SM) of particle physics and describes
the strength of the strong interaction. It determines how strongly
quarks and gluons as building blocks of protons and neutrons interact
with each other. More concretely, alphaS, is one of the three coupling
constants within the SM and therefore plays a fundamental role in our
ability to describe the universe. The precision measurement of alphaS,
is notorious difficult and most experimental measurements yield relative
uncertainties of several percent. In recent years, we developed a
fundamentally new approach to measure the strong coupling constant using
the kinematic properties of Z bosons produced in proton-proton
collisions, yielding a relative uncertainty of 0.8% and being the most
precise measurement to date. Our approach of this measurement lies in
the study of the Z boson kinematics in proton-proton collisions. Using
the Z boson for this purpose provides three huge advantages: First of
all, its kinematics in proton-proton collisions show a significant
dependence on the strong coupling constant; secondly, the kinematics can
be precisely predicted and thirdly, once the Z boson is created and
decayed in electrons or muons, it does not experience any further
effects from the strong interaction. In this talk, we summarize the
basic concepts of this measurement.
Bio:
https://mschott.web.cern.ch/mschott/
--
Steven Lowette
https://cern.ch/lowette/
Dear all,
On Friday May 31 we will have an IIHE seminar from Dr. Isabelle De Bruyn:
"The CMS Cathode Strip Chamber Upgrade for HL-LHC"
at 14h30 in the Sacton seminar room (G.1.03)
Abstract and short bio are below; the event's agenda can be found here:
https://indico.iihe.ac.be/event/1924/
Kind regards,
Steven.
-----
Abstract:
The CMS muon system consists of 4 different types of muon chambers:
drift tubes (DTs), cathode strip chambers (CSCs), resistive plate
chambers (RPCs), and gas electron multipliers (GEMs). After an
introduction to the CMS muon system, the functioning of the CSCs will be
described. The performed upgrade of the CSC electronics during long
shutdown 2 will be covered, as well as the remaining upgrade, in view of
the HL-LHC.
Bio:
Isabelle graduated in Physics from Ghent University in Belgium and
completed her Master thesis in a research group working with the CMS
experiment. During her PhD (obtained in 2018) she continued her
involvement with the CMS experiment at the VUB in Brussels and worked on
a dark matter search using trackless jets. She then moved to CERN and
started working for the University of Wisconsin, Madison, USA. She
supervised students working on data analysis, but mostly worked on the
Cathode Strip Chamber (CSC) upgrade and operation. More recently, she
also took up the role of Muon Upgrade Coordinator and was responsible
for the operation of the CSCs.
--
Steven Lowette
https://cern.ch/lowette/
Dear all,
On Friday May 17 we will have an IIHE seminar from our own Barbara Clerbaux:
"Experimental review of highlights at this year's Moriond conference"
at 14h30 in the Sacton seminar room (G.1.03).
The event's agenda can be found here:
https://indico.iihe.ac.be/event/1922/
Kind regards,
Steven.
--
Steven Lowette
https://cern.ch/lowette/
Dear all,
On Friday May 3 we will have an IIHE seminar from Dr. Cecile Caillol:
"Observation of the photon-induced production of tau leptons in pp
collisions at CMS and constraints on tau g-2"
at 14h30 in the Sacton seminar room (G.1.03)
Abstract and short bio are below; the event's agenda can be found here:
https://indico.iihe.ac.be/event/1922/
Kind regards,
Steven.
-----
Abstract:
The photon-induced production of a pair of tau leptons had been observed
in proton-proton collisions with data collected in Run-2 by the CMS
detector at the CERN LHC. Signal events are identified thanks to their
low track multiplicity around the di-tau vertex. These events are used
to set constraints on the anomalous magnetic moment of the tau lepton,
significantly improving previous measurements from the LEP era
Bio:
Dr. Cecile Caillol did her PhD at the Universite Libre de Bruxelles
(Belgium) and graduated in 2016. She then joined the University of
Wisconsin-Madison until July 2021, when she became an LD staff
researcher at CERN. During her PhD and after, she worked on Higgs boson
decays to tau leptons, including the first observation of H->tautau
decays with 2016 data, and other Higgs boson measurements with tau
leptons. She also played a leading role in several exotic Higgs
searches. More recently, she has worked on the study of photon-induced
processes (this seminar), and the lepton-induced production of
leptoquarks. She is currently convener of one of the 3 search groups of
CMS (SUS ˜= supersymmetry, dark matter, exotic Higgs).
--
Steven Lowette
https://cern.ch/lowette/
Dear all,
On Friday April 12 we will have an IIHE seminar from Dr. Elisa Wursten:
"Experiments at the antimatter factory of CERN"
at 14h30 in the Sacton seminar room (G.1.03)
Abstract and short bio are below; the event's agenda can be found here:
https://indico.iihe.ac.be/event/1920/
Kind regards,
Steven.
-----
Abstract:
The Standard Model of Particle Physics is an extremely powerful model,
but it is known to be incomplete. One of its issues is that it does not
provide an explanation for the striking imbalance of matter over
antimatter observed in our Universe. To better understand the properties
of antimatter, the Antiproton Decelerator was inaugurated at CERN in
2000, providing a facility for dedicated studies of low-energy
antiprotons and antihydrogen. Since then, an impressive amount of
progress has been made, ranging from the efficient production, trapping
and laser cooling of antihydrogen to extremely precise spectroscopic
measurements and studies of its gravitational behaviour.
In this seminar, I will give an overview of the experiments at the
antimatter factory of CERN, concisely summarizing their research
objectives, their measurements concepts and highlighting the most
important results and plans for the future.
Bio:
Dr. Elise Wursten did her PhD at KULeuven, contributing to the neutron
Electric Dipole Moment experiment (nEDM) at the Paul Scherrer Institute
in Switzerland, under supeervision of Prof. Nathal Severijns.
Interleaved with short periods as Visiting Scientist Fellow of the Max
Planck Society, she was from 2018-2020 a CERN Senior Research Fellow and
Visiting Scientist at the Ulmer Fundamental Symmetries Laboratory of
RIKEN, Japan, working at the Baryon Antibaryon Symmetry Experiment
(BASE) at the Antiproton Decelerator of CERN, Switzerland. Since 2021,
she is a Special Postdoctoral Researcher affiliated to the Ulmer
Fundamental Symmetries Laboratory of RIKEN, Japan, working again at the
BASE experiment at CERN.
--
Steven Lowette
https://cern.ch/lowette/
Dear all,
On Friday April 5 we will have an IIHE seminar from Prof. Domenico Della
Volpe:
"Opening the PeV era in gamma ray astronomy - LHAASO highlight"
at 14h30 in the Sacton seminar room (G.1.03)
Abstract and short bio are below; the event's agenda can be found here:
https://indico.iihe.ac.be/event/1921/
Kind regards,
Steven.
-----
Abstract:
LHAASO has started taking data in 2021 with its full array. With its
large field of view and good performance, it has collected a huge amount
of high quality data. In this of talk we will illustrate the LHAASO
instruments and its performances. Later we will go over major
achievements and breakthrough results. In the end, we will also give an
outlook at the evolution of the array and LHAASO synergies with future
instruments.
Bio:
Professor Della Volpe currently holds a position as a professor at the
University of Geneva, where he contributes significantly to the
astroparticle pillar of the department. Additionally, he is actively
engaged in medical physics through his leadership role in the POSICS
project, which aims to develop an innovative portable gamma/beta camera,
generously funded by the EU H2020 program.
His primary focus lies within the Cherenkov Telescope Array Observatory
(CTAO), with a particular emphasis on the Large Size Telescope (LST)
collaboration, where he holds the pivotal role of System Lead Engineer.
His significant contribution played a crucial role in the success of the
Critical Design Review (CDR) of the LST, a milestone achievement that
marked it as the first telescope to meet the stringent qualifications
for acceptance into the CTAO.
His engagement with LHAASO began in 2017 through a collaboration on the
WFCTA Camera, where his group supplied the technology for the focal
plane. This contribution was notably acknowledged by LHAASO,
particularly noteworthy as his group was the sole non-Chinese
participant in the experiment and a member of the Institutional Board,
underscoring the significance of their involvement.
From 2018 to 2023, Professor Della Volpe chaired the publication
committee of LHAASO and served as the main editor of the LHAASO science
book. He has also made significant contributions as a contributing
author to seminal papers published in prestigious journals such as
Nature and Science. His main activity is in CTAO, and in particular in
the Large Size telescope collaboration, where he is the System Lead
engineer.
In the end 2023, he left LHAASO to focus on new projects. He is one of
the PI of the QUASAR project, aimed at pushing the boundaries of
Intensity Interferometry to achieve micro arc-second resolution using
picosecond light detectors. Additionally, he is collaborating on the
French-Swiss initiative known as LACTEL, which seeks to implement a
pioneering concept of a water Cherenkov detector in Lake Geneva,
garnering significant interest from the scientific community, including
the South West Galactic Observatory (SWGO).
--
Steven Lowette
https://cern.ch/lowette/
Dear all,
On Friday Mar 29 we will have an IIHE seminar from Prof. Charlotte Van
Hulse:
"Study of hadron structure in ultra-peripheral collisions at the LHC"
at 14h30 in the Sacton seminar room (G.1.03)
Abstract and short bio are below; the event's agenda can be found here:
https://indico.iihe.ac.be/event/1919/
(note that via the top-left you can link the seminar agendas into your
agenda, so you never miss one!)
Kind regards,
Steven.
-----
Abstract:
The study of exclusive processes in lepton-hadron interactions and in
ultra-peripheral hadron-hadron collisions provides information on the
three-dimensional distribution of quarks and gluons as a function of
their longitudinal momentum and transverse position inside the hadron.
Here, the longitudinal direction corresponds to the direction of the
probe used to investigate the hadron. An introduction will be given as
to how exclusive processes in ultra-peripheral hadron-hadron collisions
provide access to the internal structure of the nucleon, and relevant
experimental results will be discussed. Where applicable, parallels with
measurements in lepton-hadron interactions will be highlighted.
Bio:
Charlotte Van Hulse is a professor at the University of Alcala in Spain.
She did her PhD at Ghent University, where she studied exclusive and
semi-inclusive QCD processes in lepton-hadron collisions at the HERMES
experiment, at DESY, Hamburg. Subsequently she studied hadron formation
in e+e- collisions, at the Belle experiment in Japan, and performed
studies for a fixed target at ALICE. Nowadays she focuses on QCD
(exclusive and semi-inclusive processes) at the LHCb experiment as well
as feasibility/R&D studies for the future electron-ion collider at BNL, USA.
--
Steven Lowette
https://cern.ch/lowette/
Hello everyone!
Last reminder for the seminar, see you at 2.30!
Cheers,
Steven.
On Mar 19, 2024 10:07, Steven Lowette <Steven.Lowette(a)cern.ch> wrote:
Hello everyone,
This is a reminder that you have the IIHE seminar this Friday on top
entanglement in your agenda.
See you there numerously,
Steven.
On 26/02/2024 14:28, Steven Lowette wrote:
> Dear all,
>
> On Friday Mar 22 we will have an IIHE seminar from Dr. James Howarth:
> "Exploring quantum entanglement at hadron colliders using top quarks at
> the ATLAS experiment"
> at 14h30 in the Sacton seminar room (G.1.03)
>
> Abstract and short bio are below; the event's agenda can be found here:
> https://indico.iihe.ac.be/event/1918/
>
> Kind regards,
> Steven.
>
> -----
>
> Abstract:
> ATLAS recently observed quantum entanglement in pairs of top quarks
> using 13 TeV data, the first time that entanglement has been observed in
> fundamental quarks and at the highest ever energy scales. In this
> seminar I will explain how this ground breaking measurement was
> achieved, how it highlights limitations in our current state-of-the-art
> Monte Carlo simulations, and the implications of the result in the wider
> context of quantum information. I will also explain what direction this
> exciting new field of study at collider experiments might take and
> highlight new opportunities for collaborations between quantum
> information and collider physics.
>
> Bio:
> Dr James (Jay) Howarth is a Lecturer at the University of Glasgow and
> Royal Society University Research Fellow. He obtained his PhD at the
> University of Manchester in 2013, followed by a research fellowship at
> DESY and a postdoctoral research position at the University of
> Manchester. His research focuses on top quark physics in general,
> particularly on the properties of top quarks at hadron colliders and is
> a member of the ATLAS collaboration.
>
>
--
Steven Lowette
https://cern.ch/lowette/
Dear all,
On Friday Mar 22 we will have an IIHE seminar from Dr. James Howarth:
"Exploring quantum entanglement at hadron colliders using top quarks at
the ATLAS experiment"
at 14h30 in the Sacton seminar room (G.1.03)
Abstract and short bio are below; the event's agenda can be found here:
https://indico.iihe.ac.be/event/1918/
Kind regards,
Steven.
-----
Abstract:
ATLAS recently observed quantum entanglement in pairs of top quarks
using 13 TeV data, the first time that entanglement has been observed in
fundamental quarks and at the highest ever energy scales. In this
seminar I will explain how this ground breaking measurement was
achieved, how it highlights limitations in our current state-of-the-art
Monte Carlo simulations, and the implications of the result in the wider
context of quantum information. I will also explain what direction this
exciting new field of study at collider experiments might take and
highlight new opportunities for collaborations between quantum
information and collider physics.
Bio:
Dr James (Jay) Howarth is a Lecturer at the University of Glasgow and
Royal Society University Research Fellow. He obtained his PhD at the
University of Manchester in 2013, followed by a research fellowship at
DESY and a postdoctoral research position at the University of
Manchester. His research focuses on top quark physics in general,
particularly on the properties of top quarks at hadron colliders and is
a member of the ATLAS collaboration.
--
Steven Lowette
https://cern.ch/lowette/