tipp2014 February 2014

tipp2014@nikhef.nl

28 participants
340 discussions

[Tipp2014] [Indico] New abstract submission: ONEL, Yasar
by noreply-indico-team＠cern.ch 11 Feb '14

11 Feb '14

The following email has been sent to ONEL, Yasar: === Dear Yasar Onel, The submission of your abstract has been successfully processed. Abstract submitted: <https://indico.cern.ch/event/192695/call-for- abstracts/my-abstracts>. Status of your abstract: <https://indico.cern.ch/event/192695/call- for-abstracts/219/>. See below a detailed summary of your submitted abstract: Conference: Tipp 2014 - Third International Conference on Technology and Instrumentation in Particle Physics Submitted by: ONEL, Yasar Submitted on: 11 February 2014 00:26 Title: CMS Hadron Forward Calorimeter Phase I Upgrade Status Abstract content The Hadron Forward Calorimeter of CMS is going through a complete Phase I upgrade. The current photomultiplier tubes (PMTs) are being replaced with thinner window, higher quantum efficiency, four-anode photomultiplier tubes. The new PMTs will provide better light detection performance, a significantly reduced background and unique handles to recover the signal in the presence of background. This report will describe the nature of the essential upgrade elements with supporting beam test results and the status of the upgrade progression. Summary Overview of the CMS Forward Calorimeter HF upgrades during the Phase I Primary Authors: Prof. ONEL, Yasar (University of Iowa) <yasar-onel(a)uiowa.edu> Co-authors: Abstract presenters: Prof. ONEL, Yasar Track classification: Experiments: 2a) Experiments & Upgrades Presentation type: Oral Comments: I would like to deliver my talk as early as possible during the conference since I have to return to the US for the US-CMS yearly meeting (June 5th). Thanks

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[Tipp2014] [Indico] New abstract submission: SANI, Matteo
by noreply-indico-team＠cern.ch 10 Feb '14

10 Feb '14

The following email has been sent to SANI, Matteo: === Dear Matteo Sani, The submission of your abstract has been successfully processed. Abstract submitted: <https://indico.cern.ch/event/192695/call-for- abstracts/my-abstracts>. Status of your abstract: <https://indico.cern.ch/event/192695/call- for-abstracts/218/>. See below a detailed summary of your submitted abstract: Conference: Tipp 2014 - Third International Conference on Technology and Instrumentation in Particle Physics Submitted by: SANI, Matteo Submitted on: 10 February 2014 21:07 Title: Preparing Electrons and Photons High Level Trigger Reconstruction in CMS for Run II data taking Abstract content The CMS experiment has been designed with a 2-level trigger system. The first level is implemented on custom-designed electronics. The second level is the so-called High Level Trigger (HLT), a streamlined version of the CMS offline reconstruction software running on a computer farm. For Run II of the Large Hadron Collider, the increase in center-of-mass energy and luminosity will raise the event rate to a level challenging for the HLT algorithm. New approaches have been studied to keep the HLT output rate manageable while maintaining thresholds low enough to cover physics analyses. The strategy mainly relies on porting online the ingredients that have been successfully applied in the offline reconstruction, thus allowing to move HLT selection closer to offline cuts. We will present such improvements in the definitions of HLT electrons and photons, focusing in particular on the deployment of a new superclustering algorithm allowing pileup mitigation, a new Particle-Flow-based isolation replacing the less powerful detector-based approach, and an electron-dedicated track fitting algorithm based on a Gaussian Sum Filter. Summary Primary Authors: SANI, Matteo (Univ. of California San Diego (US)) <matteo.sani(a)cern.ch> Co-authors: REGNARD, Simon (Ecole Polytechnique (FR)) <simon.regnard(a)cern.ch> Abstract presenters: REGNARD, Simon Track classification: Data-processing: 3b) Trigger and Data Acquisition Systems Presentation type: Oral Comments:

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[Tipp2014] [Indico] New abstract submission: TRIOSSI, Andrea
by noreply-indico-team＠cern.ch 10 Feb '14

10 Feb '14

The following email has been sent to TRIOSSI, Andrea: === Dear Andrea Triossi, The submission of your abstract has been successfully processed. Abstract submitted: <https://indico.cern.ch/event/192695/call-for- abstracts/my-abstracts>. Status of your abstract: <https://indico.cern.ch/event/192695/call- for-abstracts/217/>. See below a detailed summary of your submitted abstract: Conference: Tipp 2014 - Third International Conference on Technology and Instrumentation in Particle Physics Submitted by: TRIOSSI, Andrea Submitted on: 10 February 2014 18:10 Title: A New Data Concentrator for the CMS Muon Barrel Track Finder - Phase I Upgrade Abstract content The CMS muon trigger will undergo considerable enhancements during Phase I upgrade. In order to improve rate reduction and efficiency the full muon trigger chain will be completely redesigned: the plan is to move from a redundant scheme, where the three subdetectors (CSC, DT, RPC) have a separate track finder, to three geographical track finders (barrel, endcap and overlap) that combine trigger primitives of each subdetector. In particular, the muon barrel track finder (MBTF) will host a new algorithm, that aggregating DT and RPC trigger data, will be able to improve the fake rejection and the muon momentum measurement. This report will focus on the adaptive layer of the MBTF called TwinMux. Its primary role will be to merge, arrange and fan-out the slow optical links from the chambers in faster links (10Gbps). It will realize a full connectivity matrix between the on-detector electronics and the MBTF allowing for different processing schemes. Such new hardware will be implemented in MicroTCA boards compliant with all the CMS standards in terms of clock distribution, slow control and data acquisition. TwinMux will be centered around a powerful Virtex-7 FPGA able to exchange data on up to 96 optical lanes. The gigabit connectivity on the backplane will guarantee the connection with the central DAQ, allowing the adoption of the TwinMux for the DT read out as well. Summary Primary Authors: TRIOSSI, Andrea (Universita e INFN (IT)) <andrea.triossi(a)cern.ch> Co-authors: BELLATO, Marco Angelo (Universita e INFN (IT)) <marco.angelo.bellato(a)cern.ch> MONTECASSIANO, Fabio (Universita e INFN (IT)) <fabio.montecassiano(a)cern.ch> VENTURA, Sandro (Universita e INFN (IT)) <sandrov(a)pd.infn.it> ISOCRATE, Roberto (Univ. + INFN) <isocrate(a)pd.infn.it> Abstract presenters: TRIOSSI, Andrea Track classification: Data-processing: 3b) Trigger and Data Acquisition Systems Presentation type: Oral Comments:

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[Tipp2014] [Indico] New abstract submission: KRIEGER, Christoph
by noreply-indico-team＠cern.ch 10 Feb '14

10 Feb '14

The following email has been sent to KRIEGER, Christoph: === Dear Christoph Krieger, The submission of your abstract has been successfully processed. Abstract submitted: <https://indico.cern.ch/event/192695/call-for- abstracts/my-abstracts>. Status of your abstract: <https://indico.cern.ch/event/192695/call- for-abstracts/216/>. See below a detailed summary of your submitted abstract: Conference: Tipp 2014 - Third International Conference on Technology and Instrumentation in Particle Physics Submitted by: KRIEGER, Christoph Submitted on: 10 February 2014 15:02 Title: An InGrid based Low Energy X-ray Detector for the CAST Experiment Abstract content The CERN Axion Solar Telescope (CAST) is searching for axions and other new particles coupling to photons and emerging from the sun. Those particles are converted into soft X-ray photons in a high magnetic field. To enhance sensitivity for physics beyond the Standard Model it is necessary to cope with weak couplings and low energies, thus requiring an efficient background discrimination as well as a detection threshold below 1 keV. A promising candidate for a future CAST detector is an InGrid based X-ray detector. This detector combines the high spatial resolution of a pixelized readout with a highly granular Micromegas gas amplification stage. Fabrication by photolithographic postprocessing techniques allows to match the amplification grid to the pixels. The thereby achieved overall high granularity facilitates detection of single electrons which allows to determine the X-ray energy by electron counting. Additionally, rejection of background events mostly originating from cosmic rays is provided by an event shape analysis exploiting the high spatial resolution. A first prototype achieved a background reduction of roughly 120 and an energy resolution of 5.2 % at 5.9 keV. In order to demonstrate its low detection threshold an InGrid based detector was tested in the CAST Detector Lab where an X-ray generator for energies down to a few hundred eV is available. Results of these tests demonstrating the detector's ability to detect the carbon K$_\alpha$ line at 277 eV will be presented as well as a short report on the installation at the CAST experiment. Summary Primary Authors: KRIEGER, Christoph (Universitaet Bonn (DE)) <christoph.krieger(a)cern.ch> Co-authors: KAMINSKI, Jochen (Universitaet Bonn (DE)) <jochen.kaminski(a)cern.ch> DESCH, Klaus (Universitaet Bonn (DE)) <desch(a)physik.uni-bonn.de> LUPBERGER, Michael (University of Bonn) <lupberger(a)physik.uni-bonn.de> VAFEIADIS, Theodoros (CERN) <theodoros.vafeiadis(a)cern.ch> Abstract presenters: KRIEGER, Christoph Track classification: Sensors: 1c) Gaseous Detectors Sensors: 1d) Photon Detectors Presentation type: Oral Comments:

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[Tipp2014] [Indico] New abstract submission: Prof. MAZUMDAR, Kajari
by noreply-indico-team＠cern.ch 10 Feb '14

10 Feb '14

The following email has been sent to Prof. MAZUMDAR, Kajari: === Dear Kajari Mazumdar, The submission of your abstract has been successfully processed. Abstract submitted: <https://indico.cern.ch/event/192695/call-for- abstracts/my-abstracts>. Status of your abstract: <https://indico.cern.ch/event/192695/call- for-abstracts/215/>. See below a detailed summary of your submitted abstract: Conference: Tipp 2014 - Third International Conference on Technology and Instrumentation in Particle Physics Submitted by: Prof. MAZUMDAR, Kajari Submitted on: 10 February 2014 13:29 Title: Upgrade of the CMS Outer Tracker Abstract content With the foreseen upgrade of the LHC to the High-Luminosity LHC in the next decade an instantaneous luminosity of 5x10^34 cm^-2 s^-1 and an integrated luminosity of 3000 fb-1 are expected. This, together with the expected average pileup of 140 leads to high occupancy and high radiation levels and thus necessitates an upgrade of the CMS Tracker. In order to cope with these challenges imposed by the HL-LHC environment, the silicon strip granularity will be increased and the sensors will be cooled to -20^oC. Moreover, tracker information will be made available to the Level 1 trigger. For this purpose CMS will introduce pT modules, a dedicated module design in which the clusters from two closely spaced sensors can be correlated and high momentum tracks can be selected. This talk will motivate and introduce the concept of the CMS Outer Tracker upgrade and will give an overview of the ongoing R&D activities. Summary Primary Authors: Prof. MAZUMDAR, Kajari (Tata Inst. of Fundamental Research (IN)) <kajari.mazumdar(a)cern.ch> Co-authors: Abstract presenters: Prof. MAZUMDAR, Kajari Track classification: Sensors: 1b) Semiconductor Detectors Presentation type: Oral Comments: Kajari Mazumdar submits this abstract on behalf of Conference committee of CMS collaboration at LHC. The name of the actual speaker will be specified later.

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[Tipp2014] [Indico] New abstract submission: Prof. MAZUMDAR, Kajari
by noreply-indico-team＠cern.ch 10 Feb '14

10 Feb '14

The following email has been sent to Prof. MAZUMDAR, Kajari: === Dear Kajari Mazumdar, The submission of your abstract has been successfully processed. Abstract submitted: <https://indico.cern.ch/event/192695/call-for- abstracts/my-abstracts>. Status of your abstract: <https://indico.cern.ch/event/192695/call- for-abstracts/214/>. See below a detailed summary of your submitted abstract: Conference: Tipp 2014 - Third International Conference on Technology and Instrumentation in Particle Physics Submitted by: Prof. MAZUMDAR, Kajari Submitted on: 10 February 2014 13:25 Title: The CMS Electromagnetic Calorimeter: lessons learned during LHC run 1, overview and future projections Abstract content The Electromagnetic Calorimeter (ECAL) of the Compact Muon Solenoid (CMS) experiment at the LHC is a hermetic, fine grained, homogeneous calorimeter, comprising 75,848 lead tungstate scintillating crystals. We highlight the key role of the ECAL in the discovery and elucidation of the Standard Model Higgs boson during LHC Run I. We discuss, with reference to specific examples from LHC Run I, the challenges of operating a crystal calorimeter at a hadron collider. Particular successes, chiefly in terms of achieving and maintaining the required detector energy resolution in the harsh radiation environment of the LHC, are described. The prospects for LHC Run II (starting in 2015) are discussed, building upon the experience gained from Run I. The high luminosity upgrade of the LHC (HL-LHC) is expected to be operational from about 2025 to 2035 and will provide instantaneous and integrated luminosities of around 5 x 10^34 cm-2 s-1 and 3000 fb-1 respectively. We outline the challenges that ECAL will face and motivate the evolution of the detector that is thought to be necessary to maintain its performance throughout LHC and High-Luminosity LHC operation. Summary Primary Authors: Prof. MAZUMDAR, Kajari (Tata Inst. of Fundamental Research (IN)) <kajari.mazumdar(a)cern.ch> Co-authors: Abstract presenters: Prof. MAZUMDAR, Kajari Track classification: Experiments: 2a) Experiments & Upgrades Presentation type: --not specified-- Comments: Kajari Mazumdar submits this abstract on behalf of Conference committee of CMS collaboration at LHC. The name of the actual speaker will be specified later,

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[Tipp2014] [Indico] New abstract submission: CASTANEDA HERNANDEZ, Alfredo Martin
by noreply-indico-team＠cern.ch 10 Feb '14

10 Feb '14

The following email has been sent to CASTANEDA HERNANDEZ, Alfredo Martin: === Dear Alfredo Martin Castaneda Hernandez, The submission of your abstract has been successfully processed. Abstract submitted: <https://indico.cern.ch/event/192695/call-for- abstracts/my-abstracts>. Status of your abstract: <https://indico.cern.ch/event/192695/call- for-abstracts/213/>. See below a detailed summary of your submitted abstract: Conference: Tipp 2014 - Third International Conference on Technology and Instrumentation in Particle Physics Submitted by: CASTANEDA HERNANDEZ, Alfredo Martin Submitted on: 10 February 2014 13:24 Title: Impact of the radiation background on the CMS muon high-eta upgrade for the LHC high luminosity scenario Abstract content The CMS experiment is preparing an upgrade of its muon detection system, one of the main purposes is to extend the muon detection capabilities in the very forward region (|eta|>1.6) with the installation of new stations of Cathode Strip Chambers (CSC) and Gas Electron Multiplier (GEM) detector technologies for the second (2019) and third (2023) CMS upgrade scenarios. With the increase of the LHC luminosity to 10E34cm-2s-1 an unprecedented and hostile radiation environment will be created, the subsystems most affected will be the ones located in the very forward region where the intense flux of neutrons and photons (from nuclear interactions) can potentially degrade the performance in terms of muon detection and triggering. Using FLUKA simulation the expected radiation background rates are calculated for the regions of interest, the impact on the detector performance is evaluated and possible radiation shielding scenarios are studied. Summary Primary Authors: CASTANEDA HERNANDEZ, Alfredo Martin (Texas A & M University (US)) <alfredo.martin.castaneda.hernandez(a)cern.ch> Co-authors: Abstract presenters: CASTANEDA HERNANDEZ, Alfredo Martin Track classification: Sensors: 1c) Gaseous Detectors Sensors: 1e) Novel technologies Experiments: 2a) Experiments & Upgrades Presentation type: Oral Comments: The present work is part of the performances studies for the upgrade of the CMS muon system in the forward region, new technology detector and the impact of radiation backgrounds in the performance is reviewed.

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[Tipp2014] [Indico] New abstract submission: Prof. MAZUMDAR, Kajari
by noreply-indico-team＠cern.ch 10 Feb '14

10 Feb '14

The following email has been sent to Prof. MAZUMDAR, Kajari: === Dear Kajari Mazumdar, The submission of your abstract has been successfully processed. Abstract submitted: <https://indico.cern.ch/event/192695/call-for- abstracts/my-abstracts>. Status of your abstract: <https://indico.cern.ch/event/192695/call- for-abstracts/212/>. See below a detailed summary of your submitted abstract: Conference: Tipp 2014 - Third International Conference on Technology and Instrumentation in Particle Physics Submitted by: Prof. MAZUMDAR, Kajari Submitted on: 10 February 2014 13:21 Title: The CMS electromagnetic calorimeter barrel upgrade for High- Luminosity LHC Abstract content The High Luminosity LHC (HL-LHC) will provide unprecedented instantaneous and integrated luminosity. The lead tungstate crystals forming the barrel part of the CMS Electromagnetic Calorimeter (ECAL) will still perform well, even after the expected 3000 fb-1 at the end of HL-LHC. The avalanche photodiodes (APDs) used to detect the scintillation light have recently been exposed to the levels of radiation expected at the end of HL-LHC. Although they will continue to be operational, there will be some increase in noise due to radiation-induced dark-currents. Triggering on electromagnetic objects with ~140 pileup events necessitates a change of the front-end electronics. New developments in high-speed optical links will allow single-crystal readout at 40 MHz to upgraded off-detector processors, allowing maximum flexibility and enhanced triggering capabilities. The very-front-end system will also be upgraded, to provide improved rejection of anomalous signals in the APDs as well as to mitigate the increase in APD noise. We are also considering lowering the ECAL barrel operating temperature from 18 degrees C to about 8-10 degrees C, in order to increase the scintillation light output and reduce the APD dark current. Summary Primary Authors: Prof. MAZUMDAR, Kajari (Tata Inst. of Fundamental Research (IN)) <kajari.mazumdar(a)cern.ch> Co-authors: Abstract presenters: Prof. MAZUMDAR, Kajari Track classification: Sensors: 1a) Calorimetry Presentation type: --not specified-- Comments: Kajari Mazumdar submits this abstract on behalf of conference committee of CMS collaboration at LHC. Name of the actual speaker will be specified later.

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[Tipp2014] [Indico] New abstract submission: ORFANELLI, Stella
by noreply-indico-team＠cern.ch 10 Feb '14

10 Feb '14

The following email has been sent to ORFANELLI, Stella: === Dear Stella Orfanelli, The submission of your abstract has been successfully processed. Abstract submitted: <https://indico.cern.ch/event/192695/call-for- abstracts/my-abstracts>. Status of your abstract: <https://indico.cern.ch/event/192695/call- for-abstracts/211/>. See below a detailed summary of your submitted abstract: Conference: Tipp 2014 - Third International Conference on Technology and Instrumentation in Particle Physics Submitted by: ORFANELLI, Stella Submitted on: 10 February 2014 12:08 Title: Design of CMS Beam Halo Monitor system Abstract content A fast and directional monitoring system for the CMS experiment is designed to provide an online, bunch-by-bunch measurement of beam background induced by beam halo interactions, separately for each beam. The background detection is based on Cherenkov radiation produced in synthetic fused silica read out by a fast, UV sensitive photomultiplier tube. Twenty detector units per end will be azimuthally distributed around the rotating shielding of CMS, covering ~408 cm2 at 20.6m from the interaction point, at a radius of ~180 cm. The directional and fast response of the system allows the discrimination of the background particles from the dominant flux in the cavern induced by pp collision debris, produced within the 25 ns bunch spacing. A robust multi-layered shielding will enclose each detector unit to protect the photomultiplier tube from the magnetic field and to eliminate the occupancy from low energy particles. The design of the front-end units is validated by experimental results. An overview of the new system to be integrated in CMS during the current shutdown of LHC will be presented, and its perspective for monitoring in High Luminosity LHC. Summary Primary Authors: ORFANELLI, Stella (National Technical Univ. of Athens (GR)) <styliani.orfanelli(a)cern.ch> Co-authors: DABROWSKI, Anne (CERN) <anne.evelyn.dabrowski(a)cern.ch> GIUNTA, Marina (A.D.A.M. Applications of Detectors and accelerators to Medicine) <marina.giunta(a)cern.ch> AMBROSE, Mitchell James (University of Minnesota (US)) <ambr0071(a)umn.edu> FINKEL, Alexey (University of Minnesota (US)) <alexeyfinkel01(a)gmail.com> RUSACK, Roger (University of Minnesota (US)) <roger.rusack(a)cern.ch> STICKLAND, David Peter (Princeton University (US)) <david.peter.stickland(a)cern.ch> Abstract presenters: ORFANELLI, Stella Track classification: Experiments: 2a) Experiments & Upgrades Presentation type: Oral Comments:

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[Tipp2014] [Indico] New abstract submission: Prof. MAZUMDAR, Kajari
by noreply-indico-team＠cern.ch 10 Feb '14

10 Feb '14

The following email has been sent to Prof. MAZUMDAR, Kajari: === Dear Kajari Mazumdar, The submission of your abstract has been successfully processed. Abstract submitted: <https://indico.cern.ch/event/192695/call-for- abstracts/my-abstracts>. Status of your abstract: <https://indico.cern.ch/event/192695/call- for-abstracts/210/>. See below a detailed summary of your submitted abstract: Conference: Tipp 2014 - Third International Conference on Technology and Instrumentation in Particle Physics Submitted by: Prof. MAZUMDAR, Kajari Submitted on: 10 February 2014 12:06 Title: Luminosity measurement at CMS Abstract content The measurement of the luminosity delivered by the LHC is pivotal for several key physics analyses. During the first three years of running, tremendous steps forwards have been made in the comprehension of the subtleties related to luminosity monitoring and calibration, which led to an unprecedented accuracy at a hadron collider. The detectors and corresponding algorithms employed to estimate online and offline the luminosity in CMS are described. Details are given concerning the procedure based on the Van der Meer scan technique that allowed a very precise calibration of the luminometers from the determination of the LHC beams parameters. What is being prepared in terms of detector and online software upgrades for the next LHC run is also summarized. Summary Primary Authors: Prof. MAZUMDAR, Kajari (Tata Inst. of Fundamental Research (IN)) <kajari.mazumdar(a)cern.ch> Co-authors: Abstract presenters: Prof. MAZUMDAR, Kajari Track classification: Experiments: 2a) Experiments & Upgrades Presentation type: --not specified-- Comments: Kajari Mazumdar submits this abstract on behalf of Conference Committee of CMS collaboration at LHC. Name of the actual presenter will be specified later.

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tipp2014 February 2014