2024-10-28
13:35 |
Non-resonant Di-Higgs searches with the CMS experiment
/ Dutta, Irene (Fermilab)
/CMS Collaboration
The measurement of the production of Higgs boson pairs (HH) at the LHC allows the exploration of the Higgs boson interaction with itself, which is a fundamental test of the Standard Model theory. The most recent results from the CMS collaboration on measurements of non-resonant HH production using different final states and their combination using the data set collected by the CMS experiment at a centre of mass energy of 13 TeV will be presented here..
CMS-CR-2024-254.-
Geneva : CERN, 2024 - 7 p.
Fulltext: PDF;
In : 12th Edition of the Large Hadron Collider Physics Conference, Boston, Us, 3 - 7 Jun 2024
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2024-10-28
13:35 |
b-hive: a modern start-to-finish flavor tagging framework
/ Philipp Alexander Jung
/CMS Collaboration
Deep-learning-based algorithms have become essential for a large fraction of tasks in high-energy-physics (HEP) research, like the identification of jets originating from heavy quarks at the Compact Muon Solenoid (CMS) Experiment at the Large Hadron Collider (LHC) at CERN. Existing frameworks are often limited in capability and based on older software libraries by today's industry standards.With our newly developed framework b-hive, we aim to build a full package capable of handling a flavor tagging model with modern tools. [...]
CMS-CR-2024-271.-
Geneva : CERN, 2024 - 7 p.
Fulltext: PDF;
In : 12th Edition of the Large Hadron Collider Physics Conference, Boston, Us, 3 - 7 Jun 2024
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2024-10-28
13:35 |
The Phase-2 CMS BRIL system for precision luminometry
/ Mallows, Sophie (KIT, Karlsruhe, EKP)
/CMS Collaboration
The CMS Beam Radiation, Instrumentation and Luminosity (BRIL) system aims to provide high-precision bunch-by-bunch luminosity determination in the harsh conditions of the High-Luminosity LHC. Luminosity instrumentation will use diverse technologies, including a dedicated detector, the fast beam conditions monitor (FBCM) with Si-pad sensors and a fast triggerless readout. [...]
CMS-CR-2024-270.-
Geneva : CERN, 2024 - 7 p.
Fulltext: PDF;
In : 42nd International Conference on High Energy Physics (ICHEP 2024), Prague, Czech Republic, 18 - 24 Jul 2024
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2024-10-28
13:35 |
Anomaly detection in CMS
/ Kaur, Amandeep (Purdue U.)
/CMS Collaboration
With current advancements in computational resources and algorithmic developments, the CMS experiment at the LHC has been incorporating machine learning (ML) techniques to further enhance its physics potential. While ML offers powerful computational tools, the foundational building blocks remain rooted in the underlying physics phenomena. [...]
CMS-CR-2024-268.-
Geneva : CERN, 2024 - 8 p.
Fulltext: PDF;
In : 12th Edition of the Large Hadron Collider Physics Conference, Boston, Us, 3 - 7 Jun 2024
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Detaljert visning - Lignende elementer
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2024-10-28
13:35 |
Detaljert visning - Lignende elementer
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2024-10-28
13:35 |
Anomaly detection in CMS
/ Kaur, Amandeep (Purdue U.)
/CMS Collaboration
With current advancements in computational resources and algorithmic developments, the CMS experiment at the LHC has been incorporating machine learning (ML) techniques to further enhance its physics potential. While ML offers powerful computational tools, the foundational building blocks remain rooted in the underlying physics phenomena. [...]
CMS-CR-2024-268.-
Geneva : CERN, 2024 - 8 p.
Fulltext: PDF;
In : 12th Edition of the Large Hadron Collider Physics Conference, Boston, Us, 3 - 7 Jun 2024
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Detaljert visning - Lignende elementer
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2024-10-28
13:35 |
CMS results on flavour spectroscopy
/ Pompili, Alexis (INFN, Bari ; Bari U.)
/CMS Collaboration
Two recent results in conventional and exotic heavy hadron spectroscopy with the CMS detector are presented and discussed. They concern the first observation of the $\Lambda_{b}^{0} \rightarrow J/\psi \, \Xi^{-} K^{+}$ decay and the observation of two, possibly exotic, near-threshold structures in the di-charmonium mass spectrum and the evidence for a third one. [...]
CMS-CR-2024-263.-
Geneva : CERN, 2024 - 6 p.
Fulltext: PDF;
In : 42nd International Conference on High Energy Physics (ICHEP 2024), Prague, Czech Republic, 18 - 24 Jul 2024
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2024-10-28
13:35 |
CSC Calibration Constants and Validation Using 2022 Calibration run results
/ Israr, Israr (Northeastern U.)
/CMS Collaboration
The reconstruction of data from the CSC requires calibration data including electronic constants, such as gains and pedestals, timing constants used in triggering, and electronic channels and full chamber validity information. These calibration conditions, also called conditions data, are produced in dedicated calibration runs or dedicated studies taken between periods of data taking. [...]
CMS-CR-2024-253.-
Geneva : CERN, 2024 - 6 p.
Fulltext: PDF;
In : 12th Edition of the Large Hadron Collider Physics Conference, Boston, Us, 3 - 7 Jun 2024
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Detaljert visning - Lignende elementer
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2024-10-28
13:35 |
Non-resonant Di-Higgs searches with the CMS experiment
/ Dutta, Irene (Fermilab)
/CMS Collaboration
The measurement of the production of Higgs boson pairs (HH) at the LHC allows the exploration of the Higgs boson interaction with itself, which is a fundamental test of the Standard Model theory. The most recent results from the CMS collaboration on measurements of non-resonant HH production using different final states and their combination using the data set collected by the CMS experiment at a centre of mass energy of 13 TeV will be presented here..
CMS-CR-2024-254.-
Geneva : CERN, 2024 - 7 p.
Fulltext: PDF;
In : 12th Edition of the Large Hadron Collider Physics Conference, Boston, Us, 3 - 7 Jun 2024
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Detaljert visning - Lignende elementer
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2024-10-28
13:35 |
Search for charged lepton flavor violation in top quark interaction with an up-type quark, a muon, and a $\tau$ lepton with the CMS experiment
/ Park, Jiwon (DESY)
/CMS Collaboration
A search for charged-lepton flavor violation (CLFV) in top quark (t)
interactions is presented.
Proton-proton collision data collected with the CMS experiment corresponding to an integrated luminosity of 138 fb$^{-1}$ are used.
The analysis selects events containing a single muon, a hadronically decaying $\tau$ lepton, and three jets where one has been identified to originate from the fragmentation of a bottom quark.
Machine learning multiclass classification techniques are used to distinguish signal from
standard model background events.
The results of this search are consistent with the standard model expectations.
The upper limits at 95\% confidence level on the branching fraction $\mathcal{B}$ for CLFV top quark decays to a muon, a $\tau$ lepton, and an up or a charm quark are $\mathcal{B}(\mathrm{t} \to \mu\tau\mathrm{u}) < (0.04$, $0.078$, and $0.118) \times 10^{-6}$, and $\mathcal{B}(\mathrm{t} \to \mu\tau\mathrm{c}) < (0.81$, $1.71$, and $2.05) \times 10^{-6}$ for scalar, vector, and tensor-like operators, respectively..
CMS-CR-2024-249.-
Geneva : CERN, 2024 - 5 p.
Fulltext: PDF;
In : 42nd International Conference on High Energy Physics (ICHEP 2024), Prague, Czech Republic, 18 - 24 Jul 2024
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