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Physics at 13-14 TeV with the CMS experiment at the LHC

English title Physics at 13-14 TeV with the CMS experiment at the LHC
Applicant Dissertori Günther
Number 149870
Funding scheme Project funding
Research institution Institut für Teilchen- und Astrophysik ETH Zürich
Institution of higher education ETH Zurich - ETHZ
Main discipline Particle Physics
Start/End 01.10.2013 - 30.09.2015
Approved amount 870'000.00
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Keywords (7)

Electromagnetic Calorimeter; Supersymmetry; Standard Model; CMS Detector; Studies of the Higgs Boson; Scintillating Crystals; LHC Large Hadron Collider

Lay Summary (German)

Lead
Der LHC Beschleuniger befindet sich z.Z. in einer Instandhaltungsphase, nach einem erfolgreichen Betrieb in den letzten 3 Jahren. Das Institut für Teilchenphysik der ETH Zürich ist führend involviert im CMS Experiment. Beim Neustart der Datennahme in 2015 wird der Fokus der Forschungsaktivitäten auf der Suche nach supersymmetrischen Teilchen, sowie auf den Studien des Higgs Bosons liegen. Dieses Projekt hat zum Ziel, dass die ETH Gruppe eine führende Rolle bei diesen Aktivitäten einnehmen wird.
Lay summary

Nach 3 sehr erfolgreichen Jahren mit dem CMS Experiment beim LHC Beschleuniger am CERN in Genf befinden wir uns nun in einer Instandhaltungsphase, bis Anfang 2015. Der Höhepunkt der vergangenen Datennahme war die Entdeckung des lang gesuchten Higgs Bosons. Die ETH Gruppe, die unter der Leitung von Prof. G. Dissertori führend am CMS Experiment beteiligt ist, war massgeblich an dieser Entdeckung beteiligt. Bei der Wiederaufnahme der Forschungsaktivitäten im Jahre 2015, mit erhöhter Schwerpunktsenergie, wird es vor allem darum gehen, die Suche nach bisher unentdeckten Teilchen, z.B. sogenannten supersymmetrischen Teilchen, fortzuführen, sowie die Eigenschaften des neu entdeckten Higgs Bosons genauer zu vermessen. Ziel des vorliegenden Projekt ist es, der ETH Gruppe wieder eine führende Rolle bei diesen Aktivitäten zu verschaffen. Hierzu werden die Datenanalysen, welche im Jahre 2015 durchgeführt werden, im Jahre 2014 im Detail vorbereitet werden müssen, anhand von Simulationen. Ein Schwerpunkt wird die optimale Ausnutzung des elektromagnetischen Kalorimeters sein, u.a. zur genauen Vermessung von Photonen. Ein weiterer Aspekt der Arbeiten besteht in der Entwicklungs- und Forschungsarbeit zu neuen Materialien und Technologien im Hinblick auf eine mögliche Erneuerung von Komponenten des elektromagnetischen Kalorimeters, vorgesehen für ca. 2022.

Diese Grundlagenforschung erfolgt in einem sehr kompetitiven internationalen Umfeld. Das Projekt ermöglicht den beteiligten Doktorierenden und Postdoktoranden, am weltweit bedeutensten Projekt der Teilchenphysik führende Beiträge zu leisten. 

Direct link to Lay Summary Last update: 03.10.2013

Responsible applicant and co-applicants

Employees

Publications

Publication
Beam test results for a tungsten-cerium fluoride sampling calorimeter with wavelength-shifting fiber readout
R. Becker et al. (2015), Beam test results for a tungsten-cerium fluoride sampling calorimeter with wavelength-shifting fiber readout, in JINST, 10, P07002.
Combined measurement of the Higgs boson mass in pp collisions at sqrt(s) = 7 and 8 TeV with the ATLAS and CMS experiments
ATLAS and CMS collaborations (2015), Combined measurement of the Higgs boson mass in pp collisions at sqrt(s) = 7 and 8 TeV with the ATLAS and CMS experiments, in PRL, 114, 191803.
Performance of a Tungsten-Cerium Fluoride Sampling Calorimeter in High-Energy Electron Beam Tests
R. Becker at al. (2015), Performance of a Tungsten-Cerium Fluoride Sampling Calorimeter in High-Energy Electron Beam Tests, in Nucl.Instrum.Meth. , A804, 79.
Precise determination of the mass of the Higgs boson and tests of compatibility of its couplings with the standard model predictions using proton collisions at 7 and 8 TeV
CMS collaboration (2015), Precise determination of the mass of the Higgs boson and tests of compatibility of its couplings with the standard model predictions using proton collisions at 7 and 8 TeV, in EPJC, 75, 212.
Results on damage induced by high-energy protons in LYSO calorimeter crystals
G. Dissertori D. Luckey F. Nessi-Tedaldi F. Pauss M. Quittnat R. Wallny M. Glaser (2015), Results on damage induced by high-energy protons in LYSO calorimeter crystals, in Nucl.Instrum.Meth, A745, 1-6.
Search for physics beyond the standard model in events with two leptons, jets, and missing transverse momentum in pp collisions at sqrt(s) = 8 TeV
CMS Collaboration (2015), Search for physics beyond the standard model in events with two leptons, jets, and missing transverse momentum in pp collisions at sqrt(s) = 8 TeV, in JHEP, 04, 124.
Searches for supersymmetry using the MT2 variable in hadronic events produced in pp collisions at 8TeV
CMS Collaboration (2015), Searches for supersymmetry using the MT2 variable in hadronic events produced in pp collisions at 8TeV, in JHEP, 05, 078.
Beam test results for a tungsten-cerium fluoride sampling calorimeter with wavelength-shifting fiber readout
V. Candelise et al. (2014), Beam test results for a tungsten-cerium fluoride sampling calorimeter with wavelength-shifting fiber readout, in Proc. IEEE Nuclear Science Symposium, paper N17.6 (Seoul, Rep. of Korea, 2014)., Seoul, Rep. of Korea.
Evolution Studies of the CMS ECAL Endcap Response and Upgrade Design Options for High-Luminosity LHC
M. Peruzzi (2014), Evolution Studies of the CMS ECAL Endcap Response and Upgrade Design Options for High-Luminosity LHC, in PANIC 2014, Hamburg.
FLUKA studies of hadron-irradiated scintillating crystals for calorimetry at the High-Luminosity LHC
M. Quittnat (2014), FLUKA studies of hadron-irradiated scintillating crystals for calorimetry at the High-Luminosity LHC, in Proc. CALOR 2014; J. Phys.: Conf. Ser. 587, Giessen.
Irradiations with 24 GeV/c protons 
of Lead Tungstate, LYSO
 and Cerium Fluoride crystals:
a comparison to CMS running conditions
F. Nessi-Tedaldi M. Quittnat (2014), Irradiations with 24 GeV/c protons 
of Lead Tungstate, LYSO
 and Cerium Fluoride crystals:
a comparison to CMS running conditions, e-collection.library.ethz.ch , Zurich.
Jet and photon physics
M. Peruzzi (2014), Jet and photon physics, in Proceedings of the Second Annual Conference on Large Hadron Collider Physics, New York.
Les Houches 2013: Physics at TeV Colliders: Standard Model Working Group Report
N. Chanon et al. (2014), Les Houches 2013: Physics at TeV Colliders: Standard Model Working Group Report, in Les Houches 2013.
Measurement of differential cross sections for the production of a pair of isolated photons in pp collisions at sqrt(s)=7 TeV
CMS Collaboration (2014), Measurement of differential cross sections for the production of a pair of isolated photons in pp collisions at sqrt(s)=7 TeV, in Eur.Phys.J. , C74, 3129.
Observation of the diphoton decay of the Higgs boson and measurement of its properties
CMS Collaboration (2014), Observation of the diphoton decay of the Higgs boson and measurement of its properties, in Eur. Phys. J , C74, 3076.
Proof-of-principle of a new geometry for sampling calorimetry using inorganic scintillator plates
R. Becker et al. (2014), Proof-of-principle of a new geometry for sampling calorimetry using inorganic scintillator plates, in Proc. CALOR 2014, Gießen, Germany 587 (2015)(1), 587 (2015)(1).
Search for Physics Beyond the Standard Model in the Opposite-Sign Same-Flavor Dilepton Final State with the CMS Detector
M.-A. Buchmann (2014), Search for Physics Beyond the Standard Model in the Opposite-Sign Same-Flavor Dilepton Final State with the CMS Detector, e-collection.library.ethz.ch , Zurich.
Search for Supersymmetry in Hadronic Final States using MT2 in pp collisions at sqrt(s) = 8 TeV and Evolution Studies of the CMS Electromagnetic Calorimeter Endcap Signals
H. Weber (2014), Search for Supersymmetry in Hadronic Final States using MT2 in pp collisions at sqrt(s) = 8 TeV and Evolution Studies of the CMS Electromagnetic Calorimeter Endcap Signals, e-collection.library.ethz.ch , Zurich.
Measurement of Differential Cross Sections for Diphoton Production in pp Collisions with the CMS Experiment
M. Peruzzi, Measurement of Differential Cross Sections for Diphoton Production in pp Collisions with the CMS Experiment, ETH PhD Thesis, Zurich.
Measurement of Differential Cross Sections for Higgs Boson Production in the Diphoton Decay Channel in pp Collisions at sqrt(s)=8 TeV
CMS Collaboration, Measurement of Differential Cross Sections for Higgs Boson Production in the Diphoton Decay Channel in pp Collisions at sqrt(s)=8 TeV, in Eur. Phys. J. C., 1.
Search for physics beyond the standard model in events with two leptons, jets, and missing transverse energy in pp collisions at sqrt(s)=8 TeV
CMS Collaboration, Search for physics beyond the standard model in events with two leptons, jets, and missing transverse energy in pp collisions at sqrt(s)=8 TeV, https://cds.cern.ch/record/1751493/, Geneva.

Collaboration

Group / person Country
Types of collaboration
International CMS Collaboration Switzerland (Europe)
- in-depth/constructive exchanges on approaches, methods or results
- Publication
- Research Infrastructure

Scientific events

Active participation

Title Type of contribution Title of article or contribution Date Place Persons involved
SPG-OEPG: Joint annual meeting of the Austrian Physical Society and the Swiss Physical Society at TU Wien Talk given at a conference Search of extra dimensions in the high mass diphoton spectrum at 13 TeV 01.09.2015 Vienna, Austria Quittnat Milena Eleonore;
The 3rd annual Large Hadron Collider Physics conference (LHCP) Talk given at a conference Inclusive searches for squark and gluinos at CMS 01.09.2015 St. Petersberg, Russia Casal Laraña Bruno;
ICNFP 2015 Talk given at a conference SUSY (CMS) 23.08.2015 Kolymbari, Greece Masciovecchio Mario;
Photons Physics at the LHC Talk given at a conference Higgs boson measurements with photons 21.05.2015 Paris, France Musella Pasquale;
CERN-LHC Seminar Individual talk Higgs boson mass and couplings determination from CMS Run I 21.01.2015 CERN, Geneva, Switzerland Musella Pasquale;
seminar at CPPM (Marseille, France) Individual talk Higgs boson physics at CMS 20.01.2015 Marseille, France Chanon Nicolas Pierre;
Multi-Boson Interactions Workshop 2014 Talk given at a conference Recent Diboson Results from CMS 28.10.2014 Brookhaven National Laboratory , United States of America Chanon Nicolas Pierre;
Higgs Couplings 2014 conference Talk given at a conference Quartic Gauge Couplings, Vector Boson Scattering at the LHC 01.10.2014 Torino , Italy Chanon Nicolas Pierre;
PANIC2 014 Talk given at a conference Evolution studies of the CMS ECAL endcap response and upgrade design options for High-Luminosity LHC 24.08.2014 Hamburg, Germany Peruzzi Marco;
PANIC 2014 Talk given at a conference Search for electroweak SUSY production at CMS 24.08.2014 Hamburg, Germany Masciovecchio Mario;
ICHEP 2014 Poster Search for Supersymmetry with Higgs bosons in the final state 02.07.2014 Valencia, Spain Masciovecchio Mario;
SPS 2014 Talk given at a conference Search for Supersymmetry in hadronic final states using MT2 with the CMS detector at the LHC 30.06.2014 Fribourg, Switzerland Quittnat Milena Eleonore; Masciovecchio Mario;
SPS 2014 Talk given at a conference Measurement of the differential isolated diphoton production cross section at CMS 30.06.2014 Fribourg, Switzerland Peruzzi Marco;
ESHEP2014: The 2014 European School of High-Energy Physics Poster FLUKA studies of hadron-irradiated scintillating crystals for calorimetry at the High-Luminosity LHC 18.06.2014 Garderen, Netherlands Quittnat Milena Eleonore;
ESHEP 2014 Poster Search for Supersymmetry in hadronic final states using MT2 with the CMS detector 18.06.2014 Garderen, Netherlands Masciovecchio Mario;
LHCP 2014 Talk given at a conference Jet and photon physics 02.06.2014 New York , United States of America Peruzzi Marco;
LHCP 2014: Large Hadron Collider Physics Conference, Columbia University, N.Y. Talk given at a conference 3rd generation SUSY searches at CMS 02.06.2014 New York , United States of America Weber Hannsjörg Artur;
CALOR2014: 16th Int. Conf. on Calorimetry for High-Energy Physics Talk given at a conference FLUKA studies of hadron-irradiated scintillating crystals for calorimetry at the High-Luminosity LHC 06.04.2014 Giessen, Germany Quittnat Milena Eleonore;
seminar IPNL (Lyon, France) Individual talk Photon physics at CMS - from a calorimeter to Higgs 06.03.2014 Lyon, France Chanon Nicolas Pierre;
3rd annual CMS SUSY workshop Talk given at a conference All hadronic triggers for SUSY searches 05.03.2014 Lisbon, Portugal Casal Laraña Bruno;
Posters at the meeting of the LHCC Poster Search for Higgs boson production within supersymmetric cascades in hadronic final states using invariant mass distribution and MT2 at CMS 05.03.2014 Geneva, Switzerland Masciovecchio Mario;
Lake Louise 2014 Poster Search for Higgs boson production in supersymmetric cascades using fully hadronic final states with MT2 at CMS 16.02.2014 Univ. of Alberta, Chateau Lake Louise , Canada Masciovecchio Mario;
Rencontres de Physique des Particules 2014, IPHC, Strasbourg Talk given at a conference LHC Higgs Results 20.01.2014 Strasbourg, France Chanon Nicolas Pierre;
Seminar Orsay Individual talk Photon physics at CMS 13.12.2013 Orsay, France Chanon Nicolas Pierre;
Electroweak physics measurements at CMS Talk given at a conference 19th International Symposium on Particles, Strings and Cosmology (PASCOS 2013) 24.11.2013 Taipeh, Taiwan Chanon Nicolas Pierre;


Communication with the public

Communication Title Media Place Year
Talks/events/exhibitions Outreach talk at Italian Liceo Scientifico, Liceo R. Corso, Correggio (RE) International 2014
Talks/events/exhibitions Dance show ”Quantum”, from the swiss choreographer Gilles Jobin, in residency at CERN in 2013 International 2013
Talks/events/exhibitions Expand you horizon (workshop from female scientists for girls International 2013
Talks/events/exhibitions International Master Classes German-speaking Switzerland 2013

Awards

Title Year
Springer Theses Recognizing Outstanding PhD Research 2015
CHIPP Prize: The CHIPP Prize is to reward annually the best student preparing his/her PhD thesis in Experimental or Theoretical Particle Physics in Switzerland 2014

Associated projects

Number Title Start Funding scheme
138111 Search for New Physics with the CMS experiment at LHC 01.10.2011 Project funding
146398 Search for New Physics and Measurements of Higgs boson properties with CMS 01.04.2013 Project funding
147470 FLARE - GRID Infrastructure for LHC Experiments 01.04.2013 FLARE
138111 Search for New Physics with the CMS experiment at LHC 01.10.2011 Project funding
162665 Physics at 13 TeV with the CMS experiment at the LHC 01.10.2015 Project funding
162665 Physics at 13 TeV with the CMS experiment at the LHC 01.10.2015 Project funding
154216 FLARE 2014-16: Operation, Computing and Upgrades of the CMS Experiment 01.04.2014 FLARE
141847 Particle Physics with high-quality data from the CERN LHC 01.10.2012 Sinergia
147468 FLARE: Maintenance & Operation for the LHC Experiments 2013 01.04.2013 FLARE
141280 FORCE Request: Operations and Upgrades of the Electromagnetic Calorimeter of the CMS experiment at the LHC 01.06.2012 FORCE / CERN
147466 FLARE Request: Operation, Computing and Upgrades of the CMS Experiment 01.04.2013 FLARE
152601 Preparation for and exploitation of the CMS data taking at the next LHC run 01.05.2014 SCOPES
160814 Particle Physics with high-quality data from the CERN LHC 01.10.2015 Sinergia

Abstract

This funding proposal seeks support by the SNF in order to carry out a world-class research programme in the context of the CMS experiment at the Large Hadron Collider (LHC) at CERN, Geneva. The first three years of very successful LHC running at 7 and 8 TeV have shown that CMS in general, and the ETH group within CMS in particular, have taken important roles in this unique quest for Physics beyond the Standard Model and for understanding the mechanism behind electroweak symmetry breaking. Regarding the latter, the discovery of a new scalar boson with mass ~125 GeV, consistent with the long-sought Standard Model Higgs boson, represents a major breakthrough for the whole field.The overarching aim of the CMS groups of ETH Zurich, led by Prof. G. Dissertori, Prof. C. Grab, Prof. F. Pauss and Prof. R. Wallny, is to maintain and consolidate the leadership role of the ETH group within CMS on a level commensurate with the important investments made by the Swiss funding agencies into the CMS experiment (Electromagnetic Calorimeter (ECAL), Barrel Pixel Detector, Solenoid, Silicon Strip Tracker). This continuation proposal, under the leadership of the PI G. Dissertori, specifically requests funds to exploit the potential of CMS centred on the ECAL and to continue our R&D program towards future upgrades of the CMS forward calorimetry system. The proposal also presents a streamlined physics analysis program with a clear emphasis on searches for supersymmetric particles and on studies of the Higgs boson in the di-photon channel, building on the development of event reconstruction software in the context of the general event description of CMS. Our proposal is driven by the LHC schedule, which foresees a long shutdown in the years 2013 and 2014, followed by the re-start of proton-proton running in spring 2015, at an increased centre-of-mass energy of ~13 TeV. This increased energy, together with the expected high luminosity, gives extremely promising prospects for an early discovery of new physics, and for further studies of the newly discovered boson. The period of this SNF grant will thus be used in order to first prepare the future high-energy analyses during the shutdown period in 2014, and then to execute them with the early LHC data in 2015. Furthermore, this period coincides with an important phase of the CMS long-term calorimetry upgrade studies, to which we plan to contribute in an essential manner by research on novel scintillating materials and related calorimeter prototypes.The planned research efforts are in excellent synergy, complementarity and close coordination with the other CMS efforts at ETH (groups of R. Wallny and C. Grab), which focus on the optimal Physics exploitation of the CMS Pixel detector and on its upgrades. Close ties also exist to other Swiss CMS groups at PSI and the University of Zurich. The analysis efforts of the PI and the Co-PIs follow a common analysis master plan, sharing the overall responsibilities in order to increase efficiency and exploit synergies between the different groups. It is very important to highlight that the CMS data analysis environment is extremely competitive, with notably very strong and large groups from the US, the UK and Germany, such as MIT, UCSB, UCSD, Fermilab, Imperial College and KIT, to mention a few. Given the experience gained over the last years, we will have the necessary know-how to compete with such groups and thus make visible impacts, provided strong support is given by the SNF in terms of funding for Postdocs and PhD students, thus complementing other investments related to detector operations and upgrade efforts.
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