Poster

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2021-11-18
17:44
[PUBDB-2021-04724] Poster
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Search for contact interactions in inclusive jets at the LHC at 13 TeV with CMS
Students' Poster Session at the 2021 November LHCC meeting, Posters@LHCC, CERN, GenevaCERN, Geneva, Virtual World, 18 Nov 2021 - 18 Nov 20212021-11-182021-11-18
The inclusive jet production cross sections and triple-differential cross sections of top quark-antiquark pair production at the LHC at a center of mass energy of 13 TeV are used together with data of inclusive deep inelastic scattering to extract the parton distributions of the proton, the strong coupling constant and the top quark mass. In an additional analysis of the same data, the standard model cross section is extended with effective couplings for 4-quark contact interactions. [...]
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2021-10-27
17:28
[PUBDB-2021-04226] Poster

Design of a Cavity Beam Position Monitor for the FLASH 2020+ Undulator Intersection Project at DESY
10th International Beam Instrumentation Conference, IBIC2021, PohangPohang, South Korea, 13 Sep 2021 - 17 Sep 20212021-09-132021-09-17
The FLASH 1 beamline at DESY will be upgraded fromfixed to variable gap undulators in the next years. For this thevacuum beamline has to be adapted. [...]
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2021-10-27
17:17
[PUBDB-2021-04223] Poster
; ; ; et al
Tests of the New BPM Long Term Drift Stabilization Scheme Based on External Crossbar Switching at PETRA III
10th International Beam Instrumentation Conference, IBIC2021, PohangPohang, South Korea, 13 Sep 2021 - 17 Sep 20212021-09-132021-09-17
For the new PETRA IV project at DESY, about 800 high 3 resolution BPMs will be installed with the readout electron­ics system based on MTCA.4 as technical platform. In order to fulfill the requested long-term drift requirement to be less than 1 micron over a period of six days ( one week of user operation), due to the machine-specific geometry the BPM cable paths have to be stabilized in addition. [...]
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2021-10-27
16:50
[PUBDB-2021-04222] Poster
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Comparison of Two Long Term Drift Stabilization Schemes for BPM Systems
10th International Beam Instrumentation Conference, IBIC2021, PohangPohang, Rep. of Korea, 13 Sep 2021 - 17 Sep 20212021-09-132021-09-17
For the planned upgrade of synchrotron radiationsources PETRA (called PETRA IV) at DESY a muchhigher beam brilliance is requested. In order to measure accordingbeam positions and to control orbit stability to thecorresponding level of accuracy, a future high-resolutionBPM system has to deliver the necessary requirements onmachine stability. [...]
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2021-09-21
12:46
[PUBDB-2021-03801] Poster

First differential cross section measurement of the associated production of a single top quark and a Z boson at the CMS Experiment
The 40th International Symposium on Physics in Collision 2021, PIC2021, AachenAachen, Germany, 14 Sep 2021 - 17 Sep 20212021-09-142021-09-17
The Large Hadron Collider (LHC) at CERN is the first facility to produce millions of top quark events. In pp collisions, the dominant production mechanism for top quark pairs are the strong interactions, while single top quark production proceeds via electroweak interactions. [...]
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2021-09-21
12:32
[PUBDB-2021-03797] Poster

b jet identification at the CMS High Level Trigger at the HL-LHC
The 40th International Symposium on Physics in Collision 2021, PIC2021, AachenAachen, Germany, 14 Sep 2021 - 17 Sep 20212021-09-142021-09-17
The HL-LHC will ultimately increase the instantaneous luminosity by around a factor of four compared to Run-2 with up to 200 interactions per bunch crossing. This represents a major challenge in terms of triggering, with the trigger system divided into an initial first level trigger using custom electronics and a high level trigger composed of commodity computers.This poster will describe the first detailed and realistic reconstruction algorithms used for bottom quark jet identification at the CMS High Level Trigger for the upgraded detectors in the presence of 200 interactions together with the performance of its inputs. [...]
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2021-08-17
11:50
[PUBDB-2021-03398] Poster
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Search for contact interactions with inclusive jet production at the LHC at 13 TeV with CMS
European Physical Society Conference on High Energy Physics 2021, EPS-HEP2021, Hamburg (video only)Hamburg (video only), Virtual World, 26 Jul 2021 - 30 Jul 20212021-07-262021-07-30
The inclusive jet production cross sections and triple-differential cross sections of top quark-antiquark pair production at the LHC at a center of mass energy of 13 TeV are used together with data of inclusive deep inelastic scattering to extract the parton distributions of the proton and the strong coupling constant. In an additional analysis of the same data, the standard model cross section is extended with effective couplings for 4-quark contact interactions. [...]
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2021-08-17
11:44
[PUBDB-2021-03397] Poster

Measurement of the Differential Cross Section and Spin Asymmetry of the Associated Production of a Single Top Quark and a Z Boson at the CMS Experiment
European Physical Society Conference on High Energy Physics 2021, EPS-HEP2021, Hamburg (video only)Hamburg (video only), Virtual World, 26 Jul 2021 - 30 Jul 20212021-07-262021-07-30
The associated production of a single top quark and a Z boson includes the tZ coupling as well as the coupling of three vector bosons (WWZ) and is therefore a unique process to study the couplings of heavy particles in the SM. The top quark in this process is polarized due to its production through the weak interaction. [...]
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2021-08-02
12:43
[PUBDB-2021-03196] Poster

Precision From Diboson Processes at FCC-hh
The International Workshop on "Higgs as a Probe of New Physics" Special Edition 2021, HPNP2021, Osaka UniversityOsaka, Osaka University, Japan, 25 Mar 2021 - 27 Mar 20212021-03-252021-03-27
Thanks to its high luminosity and center of mass energy, the future FCC-hh collider will allow us to probe processes with clean but rare final states that are unaccessible at the LHC. The study of diboson production processes poses a promising way of indirectly constraining New Physics in the context of the Higgs Boson. [...]
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2021-08-02
12:38
[PUBDB-2021-03195] Poster

Precision from Diboson Processes at FCC-hh
The ninth Annual Conference on Large Hadron Collider Physics, LHCP2021, Sorbonne Universite ParisParis, Sorbonne Universite Paris, France, 7 Jun 2021 - 12 Jun 20212021-06-072021-06-12
Thanks to its high luminosity and center of mass energy, the future FCC-hh collider will allow us to probe processes with clean but rare final states that are unaccessible at the LHC. The study of diboson production processes poses a promising way of indirectly constraining New Physics in the context of the Higgs Boson. [...]
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