OLYMPUS GEM LUMINOSITY MONITORS ÖZGÜR ATES HAMPTON UNIVERSITY
|
|
|
- Lionel Short
- 5 years ago
- Views:
Transcription
1 OLYMPUS GEM LUMINOSITY MONITORS ÖZGÜR ATES HAMPTON UNIVERSITY 8 December 2011-DESY STUDENT TALK SERIES
2 CONTENTS Two Photon Exchange in Elastic ep Scattering Principle of OLYMPUS Experiment Control of Systematics MC Geant4 Studies Triple-GEM Telescope Construction at Hampton U Testing at DESY TestBeam@22 Installation and Rolling-in at DORIS 8 December 2011-DESY STUDENT TALK SERIES 2
3 Proton Form Factor Ratio All Rosenbluth data from SLAC and Jlab in agreement Dramatic discrepancy between Rosenbluth and recoil polarization technique Multi-photon exchange considered the best candidate to explain the dramatic discrepancy. Dramatic Discrepancy! 3
4 Elastic e + -p /e - -p Ratio Two-photon exchange theoretically suggested : Interference of one- and twophoton amplitudes Measure ratio of positron-proton to electron-proton unpolarized elastic scattering to 1% Precision!! in stat.+sys. 4
5 Electrons/positrons (100mA) in multi-gev storage ring DORIS at DESY, Hamburg, Germany Unpolarized internal hydrogen target (buffer system) Large acceptance detector for e-p in coincidence Previous BLAST detector from MIT-Bates available 5
6 The OLYMPUS Detector 6
7 GEM LUMINOSITY MONITORS Luminosity monitors for LEPTON in coincidence with Recoil PROTON detected in the opposite sector, and vice versa 2 tgem telescopes, 1.2msr, 12 o, R=187/237/287cm, dr=50cm, 3 tracking planes PROTON Forward telescopes LEPTON 12 o LEPTON PROTON TOF
8 Control of Systematics Triple Super Ratio: Run the Exp. For the 4 different states i= e - vs e + j=toroidal magnet polarity(+-) Repeat cycle many times Ratio of counts Ratio of luminosities Ratio of acceptances (phase space integrals) Forward-angle (high-epsilon, low-q) elastic scattering (s e+ = s e- ) means there is no two-photon exchange Separately determine three super ratios Left-right symmetry = Redundancy 8
9 Monte Carlo Studies by using Geant4 Resolutions Generated and reconstructed variables Theta, Phi, P, Z electron/proton Residuals: Redundancy of variables / elastic scattering 4 variables: Pe, Pp, Te, Tp 3 constraints: 3 conservation equations 4 3 = 1 (DEGREES OF FREEDOM) TeTp: Te Te(Tp) TePe: Te Te(Pe) TePp: Te Te(Pp) Coplanarity: PhePhp: Phe Php 180 Common vertex: ZeZp: Ze Zp
10 TpTe: Simu. Data Points(TpTe) and Calculation(TpTe) 10
11 LUMI Acceptance: Resolution: generated-reconstructed 100mu, 50cm, LuMo only (Te=6-13 dg, Phe=+-5 dg) δzp δze δtp δte δphp δphe δpp δpe
12 Design Parameters: Resolutions & Distance Left Sec. RESOLUTIONS Proton DeltaZ Electron DeltaZ Proton Del.Theta Electron Del.Theta Proton DeltaPhi Electron DeltaPhi Proton DeltaP Electron DeltaP 100mic./50cm LuMo Only 1.70 mm 1.68 cm 0.59 Deg Deg Deg Deg. 21 MeV 78 MeV Many configurations were simulated. Varied intrinsic res. and distance between tracking planes. 100 µm intrinsic res. and 50 cm gap between Gem1/2 and Gem2/3 show the optimum performance. 12
13 12 0 Luminosity Monitors: GEM + MWPC Forward elastic scattering of lepton at 12 o in coincidence with proton in main detector Two GEM + MWPC telescopes with interleaved elements operated independently Scintillator for triggering and timing Sub-percent (relative) luminosity measurement per hour at 2.0 GeV, per day at 4.5 GeV High redundancy alignment, efficiency Two independent groups (Hampton, PNPI) Designed to fit into forward cone
14 Manufacturing The GEMs at HU-GEM LAB Test each GEM Foil (Optically + by HV) individually at MIT and HU Glue the GEMs, PV, HV Foils into their frames at HU Test the triple GEMs in GEM2D Box at HV with ArCO 2 (70:30) at HU Glue 9 stacks of tgems with their Readout Boards at HU Again test those GEM stacks at Cosmic Ray Test Stand and Ship them to DESY
15 How does a GEM Detector work? GEM = Gas Electron Multiplier introduced by F. Sauli in mid 90 s, F. Sauli et al., NIMA 386 (1997) 531 High Rate Capability Good spatial and angular resolution
16 An uncut, raw OLYMPUS GEM foil from Tech-Etch Co
17 Optical inspection by using CCD Camera at MIT
18
19 2 ND Batch Foil #8
20 Initial HV testing at MIT
21 GEM Lab at HU
22 Stretching and gluing of GEM foils at HU
23 Gluing of The First Stack January 19, 2011
24 Schematic View of a Triple GEM
25 FIRST SIGNALS FROM GEMS
26 GEMs tested at Preamplified signal from 3rd GEM (2 GeV e + beam) Initial efficiency study (before APV readout was available): GEM trigger signal (from the voltage divider) Beam trigger signal (triple coinc. from three plastics)
27 Clear correlation between the (green) signal from the GEM and the (yellow) beam trigger (triple plastic coincidence)
28 HOMOGENEITY SCAN ON Y AXIS HOMOGENEITY SCAN ON X AXIS
29 GEMs tested at GEM telescope with APV readout COLLIMATOR 130cm 42cm 33cm 507.7cm BEAMSPOTS: 2 GeV Electrons, Triggered Plastic Scint. Finger 4
30 GEMs tested at GEM telescope with APV readout COLLIMATOR 130cm 42cm 33cm 507.7cm BEAMSPOTS: 2 GeV Electrons, Triggered Plastic Scint. Finger 4
31 Data Results mm 130cm 42cm 33cm 507.7cm BEAMSPOTS: 2GeV Electrons, Triggered Plastic Scint. Finger 4 mm
32 Data Results m m COLLIMATOR 130cm 42cm 33cm 507.7cm BEAMSPOTS: 2GeV Electrons, Triggered Plastic Scint. Finger 4 mm
33 Data Results: HIGH VOLTAGE SCAN mm mm mm m mm
34 mm Data Results: MOMENTUM SCAN m mm mm mm m m
35 Data Results: XX and YY Correlations mm GEM 2:3 GEM 1:3 GEM 1:2 : XX and YY CORRELATIONS X-> mm mm Y-> mm
36 Data Results: Summed up all Charge Ampl. Histogram All Amplitude s Landau Distribution
37 Track Candidates from GEM Elements DS Yaxis DS Xaxis MI Yaxis MI Xaxis US Yaxis US Xaxis
38 OLYMPUS: July
39 Left arm installed (July 5, 2011) 39
40 After cabelling (July 18, 2011) 40
41 Cluster Sizes of Right Sector GEMs at 4 strips 4 strips 4 strips 3 strips 3 strips 3 strips
42 Cluster charge Y Cluster charge Y Cluster Charge Sharing of Right Sector GEMs at BeamTest@Doris Cluster Charge difference between XY axis Cluster charge X Cluster charge X Cluster Charge difference between XY axis Cluster Charges are matched
43 SUMMARY Two GEM Telescopes are manufactured and initially tested at Hampton University. All 9 GEM elements are tested at DESY TesBeam@22. They are working fine! 6 GEM Chambers installed on both left and right 12 0 arms. 3 working spare GEM Chambers Olympus will determine Two Photon contribution to elastic ep scattering with %1 precision.
The Luminosity Monitor
OLYMPUS Technical Review, DESY, September 15, 2009 The Luminosity Monitor Michael Kohl Hampton University, Hampton, VA 23668 Jefferson Laboratory, Newport News, VA 23606 Proposed Experiment Electrons/positrons
PoS(INPC2016)259. Latest Results from The Olympus Experiment. Axel Schmidt Massachusetts Institute of Technology
Massachusetts Institute of Technology E-mail: schmidta@mit.edu The two experimental techniques for determining the proton s elastic form factors unpolarized cross section measurements and polarization
Beyond the Born Approximation
Beyond the Born Approximation Measuring the Two Photon Exchange Correction in Hall D Robert Paul Bennett Old Dominion University D. Adikaram, D. Rimal, P. Khetharpal, B. Raue, L. Weinstein Hall D PWG Newport
Positron-proton to electron-proton elastic cross section ratios from CLAS: Systematic uncertainties and Implications of the results
Positron-proton to electron-proton elastic cross section ratios from CLAS: Systematic uncertainties and Implications of the results Dasuni Adikaram Old Dominion University Dipak Rimal, Larry Weinstein,
Simulation for Proton Charge Radius (PRad) Experiment at Jefferson Lab1 Li Ye Mississippi State University For the PRad Collaboration The Proton Charg
Simulation for Proton Charge Radius (PRad) Experiment at Jefferson Lab1 Li Ye Mississippi State University For the PRad Collaboration The Proton Charge Radius Puzzle refers to 7 σ discrepancy between the
GEANT4 simulation of the testbeam set-up for the ALFA detector
GEANT4 simulation of the testbeam set-up for the detector V. Vorobel a and H. Stenzel b a Faculty of Mathematics and Physics, Charles University in Prague, Czech Republic b II. Physikalisches Institut,
Proton Radius Puzzle and the PRad Experiment at JLab
Proton Radius Puzzle and the PRad Experiment at JLab NC A&T State University, NC USA for the PRad collaboration Spokespersons:, H. Gao, M. Khandaker, D. Dutta Outline The Proton Radius Puzzle Recent status
Neutron Structure Functions and a Radial Time Projection Chamber
Neutron Structure Functions and a Radial Time Projection Chamber Stephen Bültmann Old Dominion University for the BoNuS Collaboration The Structure of the Neutron The BoNuS Experiment at CLAS A New Proton
Proton Form Factor Puzzle and the CLAS Two-Photon Exchange Experiment
Proton Form Factor Puzzle and the CLAS Two-Photon Exchange Experiment Dipak Rimal Florida International University April 15, 2014 University of Virginia Nuclear Physics Seminar, 2014 TPE in CLAS D. Rimal
Results from HARP. Malcolm Ellis On behalf of the HARP collaboration DPF Meeting Riverside, August 2004
Results from HARP Malcolm Ellis On behalf of the HARP collaboration DPF Meeting Riverside, August 2004 The HAdRon Production Experiment 124 physicists 24 institutes2 Physics Goals Input for precise calculation
Particle Energy Loss in Matter
Particle Energy Loss in Matter Charged particles, except electrons, loose energy when passing through material via atomic excitation and ionization These are protons, pions, muons, The energy loss can
Introduction Polarimeters at MAMI Analysis Future Conclusion. Polarimetry at MAMI. V. Tyukin, Inst. of Nuclear Physics, Mainz, Germany
Polarimetry at MAMI V. Tyukin, Inst. of Nuclear Physics, Mainz, Germany Workshop to Explore Physics Opportunities with Intense, Polarized Electron Beams up to 3 MeV MIT 213 15 March 213 Contents Introduction
A Triple-GEM Telescope for the TOTEM Experiment
A Triple-GEM Telescope for the TOTEM Experiment Giuseppe Latino (Siena University & Pisa INFN) IPRD06 Siena October 4, 2006 TOTEM Experiment @ LHC T2 Telescope 3-GEM Technology Detailed Detector Simulation
Total Cross Section, Elastic Scattering and Diffraction Dissociation at the LHC
Total Cross Section, Elastic Scattering and Diffraction Dissociation at the LHC Marco Bozzo INFN Genova and University of Genova (Italy) on behalf of the TOTEM Collaboration Overview: The experiment and
GMp Experiment. M. Eric Christy. Hall A/C Summer Meeting For the GMp Collaboration
GMp Experiment M. Eric Christy For the GMp Collaboration Hall A/C Summer Meeting 2017 Overview of GMp Experiment Performed measurements of elastic e-p cross section over a Q2 range of 2-16 GeV2 Improve
A Precision Measurement of Elastic e+p Beam Normal Single Spin Asymmetry and Other Transverse Spin Measurements from Qweak
A Precision Measurement of Elastic e+p Beam Normal Single Spin Asymmetry and Other Transverse Spin Measurements from Qweak Buddhini P. Waidyawansa For the Qweak Collaboration JLab Users Group Meeting June
Building a Tracking Detector for the P2 Experiment
Building a Tracking Detector for the P Experiment DPG Frühjahrstagung, Hamburg 016 Marco Zimmermann Institute for Nuclear Physics March 3, 016 The P Experiment: Overview The Idea Precision measurement
E (GMp) Precision Measurement of the Proton Elastic Cross Section at High Q 2. Thir Gautam Hampton University
E12-07-108 (GMp) Precision Measurement of the Proton Elastic Cross Section at High Q 2 Thir Gautam Hampton University On behalf of the GMp Collaboration Hall A Collaboration Meeting January 18, 2017 GMp
Aspects of The Standard Model and Beyond
Aspects of The Standard Model and Beyond Hadronic Physics Town Meeting at DNP2012 October 25, 2012 Mark Pitt Virginia Tech Parity violating electron scattering at JLab Proton s weak charge: Qweak Electron
Experimental Aspects of Deep-Inelastic Scattering. Kinematics, Techniques and Detectors
1 Experimental Aspects of Deep-Inelastic Scattering Kinematics, Techniques and Detectors 2 Outline DIS Structure Function Measurements DIS Kinematics DIS Collider Detectors DIS process description Dirac
Threshold photoproduction of J/y with the GlueX experiment. Lubomir Pentchev Jefferson Lab for the GlueX collaboration
Threshold photoproduction of J/y with the GlueX experiment Lubomir Pentchev Jefferson Lab for the GlueX collaboration 7 th Workshop of the APS Topical Group on Hadron Physics, Washington, DC February 1-3
DESY Summer Students Program 2008: Exclusive π + Production in Deep Inelastic Scattering
DESY Summer Students Program 8: Exclusive π + Production in Deep Inelastic Scattering Falk Töppel date: September 6, 8 Supervisors: Rebecca Lamb, Andreas Mussgiller II CONTENTS Contents Abstract Introduction.
Study of di-muon production with the ZEUS detector at HERA
Submitted to the International Conference on High Energy Physics 16-22 August 2004, Beijing, China Abstract: EW 4-0231, BSM 12-0230 Sessions: Electro Weak, Beyond the Standard Model Study of di-muon production
The reaction p(e,e'p)π 0 to calibrate the Forward and the Large Angle Electromagnetic Shower Calorimeters
The reaction p(e,e'p)π 0 to calibrate the Forward and the Large Angle Electromagnetic Shower Calorimeters M.Battaglieri, M.Anghinolfi, P.Corvisiero, A.Longhi, M.Ripani, M.Taiuti Istituto Nazionale di Fisica
Status of PRad Experiment
Status of PRad Experiment Chao Gu Duke University For PRad Collaboration Outline The Proton Charge Radius Experiment Setup Analysis Status and Preliminary Results 2 The Proton Charge Radius Puzzle Proton
The Hermes Recoil Silicon Detector
The Hermes Recoil Silicon Detector Introduction Detector design considerations Silicon detector overview TIGRE microstrip sensors Readout electronics Test beam results Vertex 2002 J. Stewart DESY Zeuthen
G-APD + plastic scintillator: fast timing in high magnetic fields
NDIP 2011 Wir schaffen Wissen heute für morgen Paul Scherrer Institut Alexey Stoykov, Robert Scheuermann, Kamil Sedlak G-APD + plastic scintillator: fast timing in high magnetic fields Outline Scintillation
Study of the HARPO TPC for a high angular resolution g-ray polarimeter in the MeV-GeV energy range. David Attié (CEA/Irfu)
Study of the HARPO TPC for a high angular resolution g-ray polarimeter in the MeV-GeV energy range David Attié (CEA/Irfu) Outline Motivation of an MeV-GeV polarimeter Scientific case and expected performance
Lecture LHC How to measure cross sections...
Lecture 5b:Luminosity @ LHC How to measure cross sections... Cross Section & Luminosity Luminosities in run-i @ LHC How to measure luminosity Cross Section & Luminosity Methods for Luminosity Measurement
Non-collision Background Monitoring Using the Semi-Conductor Tracker of ATLAS at LHC
WDS'12 Proceedings of Contributed Papers, Part III, 142 146, 212. ISBN 978-8-7378-226-9 MATFYZPRESS Non-collision Background Monitoring Using the Semi-Conductor Tracker of ATLAS at LHC I. Chalupková, Z.
Micro Pixel Chamber Operation with Gas Electron Multiplier
Contents ts Micro Pixel Chamber Operation with Gas Electron Multiplier Kyoto University dept. of physics Cosmic-ray ygroup K. Hattori 1. μ-pic (Micro Pixel Chamber), micro-tpc (Time Projection Chamber
Detectors in Nuclear and High Energy Physics. RHIG summer student meeting June 2014
Detectors in Nuclear and High Energy Physics RHIG summer student meeting June 2014 Physics or Knowledge of Nature Experimental Data Analysis Theory ( application) Experimental Data Initial Conditions /
Flux and neutron spectrum measurements in fast neutron irradiation experiments
Flux and neutron spectrum measurements in fast neutron irradiation experiments G.Gorini WORKSHOP A neutron irradiation facility for space applications Rome, 8th June 2015 OUTLINE ChipIr and SEE: New Istrument
The LHCb detector. Eddy Jans (Nikhef) on behalf of the LHCb collaboration
The LHCb detector Eddy Jans (Nikhef) on behalf of the LHCb collaboration design of sub-detectors, trigger and DAQ performance: resolutions and PID-properties commissioning with cosmics and beam induced
Status of the PRad Experiment (E )
Status of the PRad Experiment (E12-11-106) NC A&T State University for the PRad collaboration Outline PRad Physics goals ep-scattering and the proton radius PRad experiment experimental setup development
Two-Photon-Exchange Effects in Nucleon EM Form Factors
Two-Photon-Exchange Effects in Nucleon EM Form Factors Introduction Radiative Corrections TPE Extraction TPE Calculations Future Experiments Summary Kees de Jager Jefferson Lab MAMI & Beyond March 3 -
GEM upgrade of the ALICE TPC. Markus Ball Physics Department E18 Technische Universität München On Behalf of the ALICE TPC upgrade
GEM upgrade of the ALICE TPC Markus Ball Physics Department E18 Technische Universität München On Behalf of the ALICE TPC upgrade 1 Outline Motivation for the GEM upgrade Ion Backflow Suppression with
First results of W ± boson production in high-energy polarized p+p collisions at RHIC at BNL
1 First results of W ± boson production in high-energy polarized p+p collisions at RHIC at BNL Outline 2 W production - Recent Results First W + /W - Cross-section and A L Measurement at STAR Experimental
Transition Radiation Detector for GlueX
Transition Radiation Detector for GlueX Test with Argon S.Furletov, L. Pentchev Jefferson Lab GlueX Collaboration Meeting Feb 19, 2016 Outline Test setup in Hall D Monte Carlo simulation First results
A novel design of the MeV gamma-ray imaging detector with Micro-TPC
Elsevier Science 1 Journal logo A novel design of the MeV gamma-ray imaging detector with Micro-TPC R.Orito *,H.Kubo,K.Miuchi,T.Nagayoshi,A.Takada,T.Tanimori,M.Ueno Department of Physics,Graduate School
PoS(HEP2005)177. Status of the OPERA experiment. Francesco Di Capua. Universita Federico II and INFN.
Francesco Di Capua Universita Federico II and INFN E-mail: francesco.di.capua@cern.ch The OPERA experiment has been designed to observe an unambiguous signal of ν µ ν τ oscillation in the parameter region
Information about the T9 beam line and experimental facilities
Information about the T9 beam line and experimental facilities The incoming proton beam from the PS accelerator impinges on the North target and thus produces the particles for the T9 beam line. The collisions
Tracking at the LHC. Pippa Wells, CERN
Tracking at the LHC Aims of central tracking at LHC Some basics influencing detector design Consequences for LHC tracker layout Measuring material before, during and after construction Pippa Wells, CERN
Low-Energy Accelerators for High Precision Measurements Sebastian Baunack
Low-Energy Accelerators for High Precision Measurements Sebastian Baunack Johannes Gutenberg-Universität Mainz EINN 2017, Oct. 31 - Nov 4, 2017 Paphos, Cyprus 1 Outline New type of accelerators: ERL High
PoS(Bormio 2013)024. P2 - The weak charge of the proton. D. Becker, K. Gerz. S. Baunack, K. Kumar, F. E. Maas
Institute for Nuclear Physics, University of Mainz E-mail: beckerd@kph.uni-mainz.de, gerz@kph.uni-mainz.de S. Baunack, K. Kumar, F. E. Maas In early 2012, preparations for a new high precision measurement
Study of GEM-TPC Performance in Magnetic Fields
Study of GEM-TPC Performance in Magnetic Fields Dean Karlen, Paul Poffenberger, Gabe Rosenbaum University of Victoria and TRIUMF, Canada 2005 International Linear Collider Workshop Stanford, California
CLAS12 at Jefferson Lab
CLAS12 at Jefferson Lab Daria Sokhan University of Glasgow, UK IPPP/NuSTEC Topical Meeting on Neutrino-Nucleus Scattering IPPP, Durham, UK 19 April 2017 Jefferson Lab 6 GeV era Jefferson Lab CEBAF: Continuous
Frigyes Nemes (Eötvös University) on behalf of the TOTEM collaboration
Frigyes Nemes (Eötvös University) on behalf of the TOTEM collaboration http://totem.web.cern.ch/totem/ Hadron Structure'13 2013, 29 June 4 July Hadron Structure'13 6/18/2013 Frigyes Nemes, TOTEM 1 Total
Digital Hadron Calorimetry for the Linear Collider using GEM Technology
Digital Hadron Calorimetry for the Linear Collider using GEM Technology University of Texas at Arlington Andrew Brandt, Kaushik De, Shahnoor Habib, Venkat Kaushik, Jia Li, Mark Sosebee, Andy White* 1,
Muon reconstruction performance in ATLAS at Run-2
2 Muon reconstruction performance in ATLAS at Run-2 Hannah Herde on behalf of the ATLAS Collaboration Brandeis University (US) E-mail: hannah.herde@cern.ch ATL-PHYS-PROC-205-2 5 October 205 The ATLAS muon
Beam diagnostics: Alignment of the beam to prevent for activation. Accelerator physics: using these sensitive particle detectors.
Beam Loss Monitors When energetic beam particles penetrates matter, secondary particles are emitted: this can be e, γ, protons, neutrons, excited nuclei, fragmented nuclei... Spontaneous radiation and
PoS(EPS-HEP2015)232. Performance of a 1 m 2 Micromegas Detector Using Argon and Neon based Drift Gases
Performance of a m Micromegas Detector Using Argon and Neon based Drift Gases a, Otmar Biebel a, Jonathan Bortfeldt a, Ralf Hertenberger a, Ralph Müller a and Andre Zibell b a Ludwig-Maximilians-Universität
The experiment at JINR: status and physics program
The 3rd International Conference on Particle Physics and Astrophysics Volume 2018 Conference Paper The BM@N experiment at JINR: status and physics program D. Baranov, M. Kapishin, T. Mamontova, G. Pokatashkin,
GMp Experiment (E ): An update
GMp Experiment (E12-07-108): An update Kalyan Allada MIT Hall A/C Summer Meeting, Jefferson Lab 17th July 2015 Motivation Accurately measure e-p elastic cross section in kinematics similar to other JLab
Project P2 - The weak charge of the proton
Institute for Nuclear Physics, University of Mainz E-mail: beckerd@kph.uni-mainz.de K. Gerz, S. Baunack, K. S. Kumar, F. E. Maas The goal of Project P2 is to determine the electroweak mixing angle sin
Some studies for ALICE
Some studies for ALICE Motivations for a p-p programme in ALICE Special features of the ALICE detector Preliminary studies of Physics Performances of ALICE for the measurement of some global properties
Gamma-Ray Polarimetry in the Pair Production Regime
Gamma-Ray Polarimetry in the Pair Production Regime Peter F. Bloser (NASA/GSFC) S. D. Hunter (NASA/GSFC) G. O. Depaola (National University of Córdoba) F. Longo (INFN) Gamma-Ray Polarimetry Polarimetry
Performance of high pressure Xe/TMA in GEMs for neutron and X-ray detection
Performance of high pressure Xe/TMA in GEMs for neutron and X-ray detection R. Kreuger, C. W. E. van Eijk, Member, IEEE, F. A. F. Fraga, M. M. Fraga, S. T. G. Fetal, R. W. Hollander, Member, IEEE, L. M.
ALICE A Large Ion Collider Experiment
ALICE A Large Ion Collider Experiment Purpose: study the physics of strongly interacting matter at extreme energy densities CERN LHC: Colliding Pb ions at E CM =5.5 A TeV, p-p, light ions collisions 84
Studies of the hadronic component of the photon light-cone wave function using exclusive di-pion events at HERA
Submitted to the International Conference on High Energy Physics 6-22 August 2004, Beijing, China Abstract: 6-0250 Parallel Session: QCD soft interactions Studies of the hadronic component of the photon
SHMS Aerogel Detector & Calorimeter Status. A. Mkrtchyan
SHMS Aerogel Detector & Calorimeter Status A. Mkrtchyan 1 Super High Momentum Spectrometer Detector Hut Aerogel Detector Aerogel detector is situated between heavy gas (C 4 F 2 O) Čerenkov detector and
Monte Carlo simulations of a first prototype micropattern gas detector system used for muon tomography
2010 Florida Academy of Sciences Indian River State College, Fort Pierce, Florida Monte Carlo simulations of a first prototype micropattern gas detector system used for muon tomography J. B. Locke, K.
CLEO c. Anders Ryd Cornell University June 7, e e cc D D. D K,D K e
CLEOc Cornell University June 7, 25 e e cc D D D K,D K e K K e 1 Outline CLEOc experiment and the physics program Some early results D> Absolute hadronic branching fractions Semileptonic decays 2 Testing
E Update: Measurement of Two-Photon Exchange in Unpolarized Elastic Electron-Proton Scattering
E05-017 Update: Measurement of Two-Photon Exchange in Unpolarized Elastic Electron-Proton Scattering Part of the ROSEN07 Collaboration P. Solvignon, M. Johnson, J. Arrington, R. E. Segel, et al Rosenbluth
Neutron Structure Function from BoNuS
Neutron Structure Function from BoNuS Stephen BültmannB Old Dominion University for the CLAS Collaboration The Structure of the Neutron at Large x The BoNuS Experiment in 005 First Results from the BoNuS
Di-muon electroproduction with CLAS12
Di-muon electroproduction with CLAS1 S. Stepanyan (JLAB) CLAS collaboration meeting, June 16-18, 016 Ø Physics motivation for LOI: Double DVCS J/ψ-electroproduction Ø Detector configuration Background
Electron Beam Polarimetry: Status and Prospects. DIS 2005, Madison, April 2005 E. Chudakov (JLab)
Electron Beam Polarimetry: Status and Prospects DIS 2005, Madison, April 2005 E. Chudakov (JLab) Motivation: what accuracy is required for various experiments Methods in use: Optical methods Mott scattering
The Silicon-Tungsten Tracker of the DAMPE Mission
The Silicon-Tungsten Tracker of the DAMPE Mission Philipp Azzarello, DPNC, University of Geneva for the DAMPE-STK collaboration 10th International Hiroshima Symposium on the Development and Application
Edward Brash Christopher Newport University and JLab Hall C Winter Workshop January 25/26, 2007
G Ep -III in Hall C Measurement of G Ep /G Mp to Q 2 =9 GeV 2 via Recoil Polarization Edward Brash Christopher Newport University and JLab Hall C Winter Workshop January 25/26, 2007 Graduate Students Andrew
János Sziklai. WIGNER RCP On behalf of the TOTEM Collaboration:
Elastic scattering, total cross-section and charged particle pseudorapidity density in 7 TeV pp reactions measured by the TOTEM Experiment at the LHC János Sziklai WIGNER RCP On behalf of the TOTEM Collaboration:
E : Ratio of the electric form factor in the mirror nuclei 3 He and 3 H (The 3 He 3 H Charge Radius Difference)
E12 14 009: Ratio of the electric form factor in the mirror nuclei 3 He and 3 H (The 3 He 3 H Charge Radius Difference) Luke Myers Hall A Winter Meeting December 9, 2014 Measuring r 2 Absolute methods
Form Factors with Electrons and Positrons
HUGS2013, JLab, May 28 June 14, 2013 Form Factors with Electrons and Positrons Part 2: Proton form factor measurements Michael Kohl Hampton University, Hampton, VA 23668 Jefferson Laboratory, Newport News,
Preparations for BONuS12 experiment
Preparations for BONuS12 experiment Aruni Nadeeshani Hampton University On behalf of BONuS12 Detector design group CLAS collaboration- Deep processing working group 8 March 2018 1 Outline Overview of BONuS12
Measurements of Proton-Proton Elastic Scattering and Total Cross-Section at the LHC by TOTEM Diffraction 2012 Lanzarote, 15 September
Measurements of Proton-Proton Elastic Scattering and Total Cross-Section at the LHC by TOTEM Diffraction 2012 Lanzarote, 15 September Mario Deile on behalf of the TOTEM Collaboration p. 1 Experimental
HARPO: Measurement of polarised gamma rays (1.7 to 72MeV) with the HARPO TPC
HARPO: Measurement of polarised gamma rays (1.7 to 72MeV) with the HARPO TPC Philippe Gros for the HARPO collaboration 1/39 Gamma Astronomy HARPO project Setup at the NewSUBARU photon beam Gas monitoring
Two Photon Exchange (TPE) and the Proton Form Factor Problem
Two Photon Exchange (TPE) and the Proton Form Factor Problem Larry Weinstein Old Dominion University With Dasuni Adikaram, Dipak Rimal, Robert Bennett, Puneet Khetarpal, Mauri Ungaro, Brian Raue, Will
Calorimeter ECAL (tungsten silicon) HCAL (tile, iron - scintillator)
Calorimeter ECAL (tungsten silicon) HCAL (tile, iron - scintillator) Vasiliy Morgunov DESY, Hamburg and ITEP, Moscow Workshop, Padova - May 00 Vasiliy Morgunov Padova, - May 00 Calorimeter parameters ECAL
The First Results of K2K long-baseline Neutrino Oscillation Experiment
The First Results of K2K long-baseline Neutrino Oscillation Experiment Taku Ishida, representing K2K collaboration arxiv:hep-ex/0008047v1 23 Aug 2000 Institute for Particle and Nuclear Studies(IPNS) High
5 MeV Mott Polarimeter at Jefferson Lab
5 MeV at Jefferson Lab The George Washington University Hampton University Graduate Studies 2012 Outline 1 Mott Scattering Single Scattering Sherman Function Scattering Asymmetry 2 Mott Schematics Polarization
Richard Hall-Wilton University College London. July 2002
PPRP, Richard Hall-Wilton University College London July 2002 July 2002, RAL Overview Introduction to HERA and ZEUS Detector Status Central Tracking Detector Microvertex Detector Global Tracking Trigger
HERMES status and future running
HERMES status and future running Benedikt Zihlmann University of Gent on behalf of the collaboration DESY PRC Mai 24 p.1/18 Access to Transversity Single spin azimuthal asymmetries on a transverse polarized
GEANT4 Simulation of Pion Detectors for the MOLLER Experiment
GEANT4 Simulation of Pion Detectors for the MOLLER Experiment A thesis submitted in partial fulfillment of the requirement for the degree of Bachelor of Science in Physics from the College of William and
Near detector tracker concepts. D. Karlen / U. Vic. & TRIUMF T2K ND280m meeting August 22, 2004
Near detector tracker concepts D. Karlen / U. Vic. & TRIUMF T2K ND280m meeting August 22, 2004 Longitudinal extent of tracker modules Consensus has developed that the near detector should consist of a
Qweak Transverse Asymmetry Measurements
Qweak Transverse Asymmetry Measurements Buddhini Waidyawansa For the Qweak Collaboration Hall C Collaboration Meeting 02-21-2014 Outline Physics of transverse asymmetries Qweak transverse data set Analysis
Particle Energy Loss in Matter
Particle Energy Loss in Matter Charged particles loose energy when passing through material via atomic excitation and ionization These are protons, pions, muons, The energy loss can be described for moderately
Time-like Compton Scattering with transversely polarized target
Time-like Compton Scattering with transversely polarized target Vardan Tadevosyan AANSL (YerPhI) Foundation JLab 1/19/2017 Outline Physics case and motivation Experimental setup Simulation results Latest
Der Silizium Recoil Detektor für HERMES Ingrid-Maria Gregor
Der Silizium Recoil Detektor für HERMES Introduction HERMES at DESY Hamburg What do we want to measure? Recoil Detector Overview Silicon Recoil Detector Principle First measurements Zeuthen activities
for the HARPO Collaboration: *
Polarimetry and high-angular-resolution gamma-ray observations in the MeV regime using a novel detector concept for the HARPO Collaboration: * * Author list from recent publication: https://arxiv.org/abs/1706.06483
1 Introduction The structure of the proton is a matter of universal interest in nuclear and particle physics. Charge and current distributions are obt
New Measurement of (GE/GM) for the Proton R. E. Segel (Spokesperson) Northwestern University, Evanstan, IL J. Arrington (Spokesperson), F. Dohrmann, D. Gaskell, D. F. Geesaman, K. Hadi, R. J. Holt, H.
EM Energy Spectrum from 17.6 MeV photons. Eduardo do Couto e Silva and Xin Chen Feb 13, 2002
EM Energy Spectrum from 17.6 MeV photons Eduardo do Couto e Silva and Xin Chen Feb 13, 2002 Event display of a muon passing through EM Using GLEAM V3 the official version for EM Mechanical support structure
SciBar and future K2K physics. F.Sánchez Universitat Aútonoma de Barcelona Institut de Física d'altes Energies
SciBar and future K2K physics F.Sánchez Universitat Aútonoma de Barcelona Institut de Física d'altes Energies ICRR, 29 th October 2003 Outline Introduction: K2K SciBar detector: Physics goals Design Electron
Exclusive Physics with the HERMES Recoil Detector
Exclusive Physics with the HERMES Recoil Detector Erik Etzelmüller on behalf of the HERMES Collaboration!!! workshop on! Exploring Hadron Structure with Tagged Structure Functions! Thomas Jefferson National
Transverse momentum and pseudorapidity distributions with minimum bias events in CMS at the LHC
Transverse momentum and pseudorapidity distributions with minimum bias events in CMS at the LHC Christof Roland/ MIT For the CMS Collaboration Rencontres de Moriond QCD Session 14 th March, 2010 Moriond
Status of the LHCb Experiment. Ueli Strauman, University of Zurich, Switzerland. Sept. 13, 2001
Status of the LHCb Experiment Ueli Strauman, University of Zurich, Switzerland. Sept. 13, 2001 1 P b b P Number of pp inelastic interactions in one bunch crossing (σ inelastic = 80 mb): b b correlation
Neutral particles energy spectra for 900 GeV and 7 TeV p-p collisions, measured by the LHCf experiment
Neutral particles energy spectra for 900 GeV and 7 TeV p-p collisions, measured by the LHCf experiment Raffaello D Alessandro 1 Department of Physics Università di Firenze and INFN-Firenze I-50019 Sesto
The HERMES Dual-Radiator Ring Imaging Cerenkov Detector N.Akopov et al., Nucl. Instrum. Meth. A479 (2002) 511
The HERMES Dual-Radiator Ring Imaging Cerenkov Detector N.Akopov et al., Nucl. Instrum. Meth. A479 (2002) 511 Shibata Lab 11R50047 Jennifer Newsham YSEP student from Georgia Institute of Technology, Atlanta,
GEM at CERN. Leszek Ropelewski CERN PH-DT2 DT2-ST & TOTEM
GEM at CERN Leszek Ropelewski CERN PH-DT2 DT2-ST & TOTEM MicroStrip Gas Chamber Semiconductor industry technology: Photolithography Etching Coating Doping A. Oed Nucl. Instr. and Meth. A263 (1988) 351.
Study of Baryon Form factor and Collins effect at BESIII
Study of Baryon Form factor and Collins effect at BESIII Wenbiao Yan On behalf of BESIII Collaboration INT Program INT-17-3 Hadron imaging at Jefferson Lab and at a future EIC 1 Bird s View of BEPCII &
Near Detector Tracker. Dean Karlen / U. Victoria & TRIUMF NP04 Neutrino Session - KEK August 25, 2004
Near Detector Tracker Dean Karlen / U. Victoria & TRIUMF NP04 Neutrino Session - KEK August 25, 2004 Overview This talk is a summary of the current ideas for the tracking system for the near detector Draws
Forward Tagger Status
A. Celentano On behalf of the FT team March 6th, 2018 FT Status All three detectors fully operational Calorimeter: - Cooking circuit leak developed in December repaired early January - Calorimeter operated