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Articles 1  30 of 47
FullText Articles in Physics
Line Tension And Its Influence On Droplets And Particles At Surfaces, Bruce M. Law, Sean P. Mcbride, Jiang Yong Wang, Haeng Sub Wi, Govind Paneru, Santigo Betelu, Baku Ushijima, Youichi Takata, Bret Flanders, Fernando Bresme, Hiroki Matsubara, Takanori Takiue, Makoto Aratono
Line Tension And Its Influence On Droplets And Particles At Surfaces, Bruce M. Law, Sean P. Mcbride, Jiang Yong Wang, Haeng Sub Wi, Govind Paneru, Santigo Betelu, Baku Ushijima, Youichi Takata, Bret Flanders, Fernando Bresme, Hiroki Matsubara, Takanori Takiue, Makoto Aratono
Dr. Sean P. McBride
In this review we examine the influence of the line tension s on droplets and particles at surfaces. The line tension influences the nucleation behavior and contact angle of liquid droplets at both liquid and solid surfaces and alters the attachment energetics of solid particles to liquid surfaces. Many factors, occurring over a wide range of length scales, contribute to the line tension. On atomic scales, atomic rearrangements and reorientations of submolecular components give rise to an atomic line tension contribution satom (1 nN), which depends on the similarity/dissimilarity of the droplet/particle surface composition compared with the surface ...
Fluctuations In A Cosmology With A Spacelike Singularity And Their Gauge Theory Dual Description, Robert H. Brandenberger, Elisa G.M. Ferreira, Ian A. Morrison, YiFu Cai, Sumit R. Das, Yi Wang
Fluctuations In A Cosmology With A Spacelike Singularity And Their Gauge Theory Dual Description, Robert H. Brandenberger, Elisa G.M. Ferreira, Ian A. Morrison, YiFu Cai, Sumit R. Das, Yi Wang
Ian Morrison
We consider a timedependent deformation of anti–de Sitter (AdS) spacetime which contains a spacelike “singularity”—a spacelike region of high curvature. Making use of the AdS/CFT correspondence we can map the bulk dynamics onto the boundary. The boundary theory has a time dependent coupling constant which becomes small at times when the bulk spacetime is highly curved. We investigate the propagation of small fluctuations of a test scalar field from early times before the bulk singularity to late times after the singularity. Under the assumption that the AdS/CFT correspondence extends to deformed AdS spacetimes, we can map ...
NeutronAntineutron Oscillations: Theoretical Status And Experimental Prospects, David G. Phillips, William M. Snow, Kaladi Babu, S. Banerjee, David V. Baxter, Zurab Berezhiani, Marc Bergevin, Satyaki Bhattacharya, Gustaaf Brooijmans, Luis Castellanos, Mark C. Chen, C.E. Coppola, Ramanath K. Cowsik, J.A. Crabtree, Pragya Das, Eric Dees, Aleksander D. Dolgov, Phillip D. Ferguson, Matthew Frost, Tony A. Gabriel, A. Gal, Franz X. Gallmeier, Kenneth S. Ganezer, E. Golubeva, Geoffrey L. Greene, B. Hartfiel, Ayman Hawari, Lawrence H. Heilbronn, Colin D. Johnson, Yu A. Kamyshkov, Boris O. Kerbikov, Masaaki Kitaguchi, B.Z. Kopeliovich, V.B. Kopeliovich, Vadim A. Kuzmin, Chenyu Liu, P. Mcgaughey, M. Mocko, Rabindra N. Mohapatra, Nikolai V. Mokhov, Guenter Muhrer, H.P. Pieter Mumm, Lev B. Okun, Robert W. Pattie, C. Quigg, E. Ramberg, A. Ray, A. Roy, A. Ruggles, U. Sarkar, Andy Saunders, A. P. Serebrovv, H. M. Shimizu, R. Shrock, A. K. Sikdara, Sky Sjue, S. Striganov, L. W. Townsend, R. Tschirhart, A. Vainshtein, R Van Kooten, Z. Wang, A. R. Young
NeutronAntineutron Oscillations: Theoretical Status And Experimental Prospects, David G. Phillips, William M. Snow, Kaladi Babu, S. Banerjee, David V. Baxter, Zurab Berezhiani, Marc Bergevin, Satyaki Bhattacharya, Gustaaf Brooijmans, Luis Castellanos, Mark C. Chen, C.E. Coppola, Ramanath K. Cowsik, J.A. Crabtree, Pragya Das, Eric Dees, Aleksander D. Dolgov, Phillip D. Ferguson, Matthew Frost, Tony A. Gabriel, A. Gal, Franz X. Gallmeier, Kenneth S. Ganezer, E. Golubeva, Geoffrey L. Greene, B. Hartfiel, Ayman Hawari, Lawrence H. Heilbronn, Colin D. Johnson, Yu A. Kamyshkov, Boris O. Kerbikov, Masaaki Kitaguchi, B.Z. Kopeliovich, V.B. Kopeliovich, Vadim A. Kuzmin, Chenyu Liu, P. Mcgaughey, M. Mocko, Rabindra N. Mohapatra, Nikolai V. Mokhov, Guenter Muhrer, H.P. Pieter Mumm, Lev B. Okun, Robert W. Pattie, C. Quigg, E. Ramberg, A. Ray, A. Roy, A. Ruggles, U. Sarkar, Andy Saunders, A. P. Serebrovv, H. M. Shimizu, R. Shrock, A. K. Sikdara, Sky Sjue, S. Striganov, L. W. Townsend, R. Tschirhart, A. Vainshtein, R Van Kooten, Z. Wang, A. R. Young
Robert W. Pattie Jr.
Holographic Renormalization Of Asymptotically Lifshitz Spacetimes, Robert Mcnees, Robert Mann
Holographic Renormalization Of Asymptotically Lifshitz Spacetimes, Robert Mcnees, Robert Mann
Robert A McNees IV
A variational formulation is given for a theory of gravity coupled to a massive vector in four dimensions, with Asymptotically Lifshitz boundary conditions on the fields. For theories with critical exponent z=2 we obtain a welldefined variational principle by explicitly constructing two actions with local boundary counterterms. As part of our analysis we obtain solutions of these theories on a neighborhood of spatial infinity, study the asymptotic symmetries, and consider different definitions of the boundary stress tensor and associated charges. A constraint on the boundary data for the fields figures prominently in one of our formulations, and in that ...
Black Holes In The Conical Ensemble, Robert Mcnees, Daniel Grumiller
Black Holes In The Conical Ensemble, Robert Mcnees, Daniel Grumiller
Robert A McNees IV
We consider black holes in an “unsuitable box”: a finite cavity coupled to a thermal reservoir at a temperature different than the black hole’s Hawking temperature. These black holes are described by metrics that are continuous but not differentiable due to a conical singularity at the horizon. We include them in the Euclidean path integral sum over configurations, and analyze the effect this has on black hole thermodynamics in the canonical ensemble. Black holes with a small deficit (or surplus) angle may have a smaller internal energy or larger density of states than the nearby smooth black hole, but ...
Conventions, Definitions, Identities, And Other Useful Formulae, Robert Mcnees
Conventions, Definitions, Identities, And Other Useful Formulae, Robert Mcnees
Robert A McNees IV
As the name suggests, these notes contain a summary of important conventions, definitions, identities, and various formulas that I often refer to. They may prove useful for researchers working in General Relativity, Supergravity, String Theory, Cosmology, and related areas.
Boundary Terms Unbound! Holographic Renormalization Of Asymptotically Linear Dilaton Gravity, Robert Mcnees, Robert Mann
Boundary Terms Unbound! Holographic Renormalization Of Asymptotically Linear Dilaton Gravity, Robert Mcnees, Robert Mann
Robert A McNees IV
A variational principle is constructed for gravity coupled to an asymptotically linear dilaton and a pform field strength. This requires the introduction of appropriate surface terms—also known as 'boundary counterterms'—in the action. The variation of the action with respect to the boundary metric yields a boundary stress tensor, which is used to construct conserved charges that generate the asymptotic symmetries of the theory. In most cases a minimal set of assumptions leads to a unique set of counterterms. However, for certain examples we find families of actions that depend on one or more continuous parameters. We show that ...
Bps Brane Cosmology In N=2 Supergravity, Moataz Emam
Bps Brane Cosmology In N=2 Supergravity, Moataz Emam
Moataz Emam
We study the embedding of flat BPS 3branes in five dimensional N=2 supergravity theory. We derive the branes' dynamical equations as well as general expressions for the hypermultiplet fields then focus on a single brane and study its time evolution. It is shown that the brane's Hubble parameter correlates with the moduli of the underlying manifold's complex structure. For certain particular solutions, the moduli seem to exhibit an instability; being large valued at early times then rapidly decaying to either zero or some convergent constant value. The possibility of extending these results to the cosmology of our ...
Lorentz Violation With An Antisymmetric Tensor, Brett Altschul, Quentin G. Bailey, V. Alan Kostelecky
Lorentz Violation With An Antisymmetric Tensor, Brett Altschul, Quentin G. Bailey, V. Alan Kostelecky
Quentin Bailey
Field theories with spontaneous Lorentz violation involving an antisymmetric 2tensor are studied. A general action including nonminimal gravitational couplings is constructed, and features of the Nambu Goldstone and massive modes are discussed. Minimal models in Minkowski spacetime exhibit dualities with Lorentzviolating vector and scalar theories. The postNewtonian expansion for nonminimal models in Riemann spacetime involves qualitatively new features, including the absence of an isotropic limit. Certain interactions producing stable Lorentzviolating theories in Minkowski spacetime solve the renormalizationgroup equations in the tadpole approximation.
LorentzViolating Gravitoelectromagnetism, Quentin G. Bailey
LorentzViolating Gravitoelectromagnetism, Quentin G. Bailey
Quentin Bailey
The wellknown analogy between a special limit of general relativity and electromagnetism is explored in the context of the Lorentzviolating standardmodel extension. An analogy is developed for the minimal standardmodel extension that connects a limit of the CPTeven component of the electromagnetic sector to the gravitational sector. We show that components of the postNewtonian metric can be directly obtained from solutions to the electromagnetic sector. The method is illustrated with specific examples including static and rotating sources. Some unconventional effects that arise for Lorentzviolating electrostatics and magnetostatics have an analog in Lorentzviolating postNewtonian gravity. In particular, we show that even ...
Limits On Violations Of Lorentz Symmetry From Gravity Probe B, Quentin G. Bailey, Ryan D. Everett, James M. Overduin
Limits On Violations Of Lorentz Symmetry From Gravity Probe B, Quentin G. Bailey, Ryan D. Everett, James M. Overduin
Quentin Bailey
Generic violations of Lorentz symmetry can be described by an effective field theory framework that contains both general relativity and the Standard Model of particle physics called the StandardModel extension (SME). We obtain new constraints on the gravitational sector of the SME using recently published final results from Gravity Probe B. These include for the first time an upper limit at the 10_3 level on the timetime component of the new tensor field responsible for inducing local Lorentz violation in the theory, and an independent limit at the 10_7 level on a combination of components of this tensor field.
TimeDelay And Doppler Tests Of The Lorentz Symmetry Of Gravity, Quentin G. Bailey
TimeDelay And Doppler Tests Of The Lorentz Symmetry Of Gravity, Quentin G. Bailey
Quentin Bailey
Modifications to the classic timedelay effect and Doppler shift in general relativity (GR) are studied in the context of the Lorentzviolating standardmodel extension (SME). We derive the leading Lorentz violating corrections to the timedelay and Doppler shift signals, for a light ray passing near a massive body. It is demonstrated that anisotropic coefficients for Lorentz violation control a timedependent behavior of these signals that is qualitatively different from the conventional case in GR. Estimates of sensitivities to gravitysector coefficients in the SME are given for current and future experiments, including the recent Cassini solar conjunction experiment.
Catching Relativity Violations With Atoms, Quentin G. Bailey
Catching Relativity Violations With Atoms, Quentin G. Bailey
Quentin Bailey
A Viewpoint on: Atom interferometry tests of local Lorentz invariance in gravity and electrodynamics KengYeow Chung, Shengwey Chiow, Sven Herrmann, Steven Chu and Holger Müller Phys. Rev. D 80, 016002 (2009) – Published July 6, 2009.
LightBending Tests Of Lorentz Invariance, Quentin G. Bailey, Rhondale Tso
LightBending Tests Of Lorentz Invariance, Quentin G. Bailey, Rhondale Tso
Quentin Bailey
Classical lightbending is investigated for weak gravitational fields in the presence of hypothetical local Lorentz violation. Using an effective field theory framework that describes general deviations from local Lorentz invariance, we derive a modified deflection angle for light passing near a massive body. The results include anisotropic effects not present for spherical sources in General Relativity as well as Weak Equivalence Principle violation. We develop an expression for the relative deflection of two distant stars that can be used to analyze data in past and future solarsystem observations. The measurement sensitivities of such tests to coefficients for Lorentz violation are ...
The Spatial Distribution Of Electric Field Intensity When The Motion Of Electric Charge In Absolute Space, Vildyan Yanbikov
The Spatial Distribution Of Electric Field Intensity When The Motion Of Electric Charge In Absolute Space, Vildyan Yanbikov
Vildyan Yanbikov
When driving an electric or gravitational charge in absolute space. Field created by these particles will have a different distribution in space. In comparison with by a stationary charge. When the charge motion of the deformation field.
Determination Of The Free Neutron Lifetime, J. David Bowman, Leah J. Broussard, Stephen M. Clayton, M. S. Dewey, Nadia Fomin, Keith B. Grammer, G. L. Greene, Paul R. Huffman, Anthony T. Holley, Geoffrey L. Jones, Chenyu Liu, Mark Makela, Michael P. Mendenhall, Charles L. Morris, Jonathan Mulholland, K. M. Nollett, Robert W. Pattie, Seppo Penttila, M. RamseyMusolf, Daniel J. Salvat, Andy Saunders, Susan J. Seestrom, William M. Snow, A. Steyerl, F. E. Wietfeldt, Albert R. Young, Andrew T. Yue
Determination Of The Free Neutron Lifetime, J. David Bowman, Leah J. Broussard, Stephen M. Clayton, M. S. Dewey, Nadia Fomin, Keith B. Grammer, G. L. Greene, Paul R. Huffman, Anthony T. Holley, Geoffrey L. Jones, Chenyu Liu, Mark Makela, Michael P. Mendenhall, Charles L. Morris, Jonathan Mulholland, K. M. Nollett, Robert W. Pattie, Seppo Penttila, M. RamseyMusolf, Daniel J. Salvat, Andy Saunders, Susan J. Seestrom, William M. Snow, A. Steyerl, F. E. Wietfeldt, Albert R. Young, Andrew T. Yue
Robert W. Pattie Jr.
Dark Matter As An Integral Part Of An Alternative Gravity Model, Hontas Farmer
Dark Matter As An Integral Part Of An Alternative Gravity Model, Hontas Farmer
Hontas F Farmer
The purpose of this paper is to reconcile observations of dark matter effects on the galactic and cosmological scales with the null results of astroparticle physics observations such as CDMS and ANTARES. This paper will also provide a candidate unified and simpler mathematical formulation for the Lambda CDM model. Unification is achieved by a combination of the f(R) approach, with the standard LCDM approach and inflationary models. It is postulated that dark matterenergy fields depend on the Ricci curvature R. Standard methods of classical and quantum field theory on curved space time are applied. When this model is treated ...
A Method For Measuring Coherent Elastic NeutrinoNucleus Scattering At A Far OffAxis HighEnergy Neutrino Beam Target
Robert W. Pattie Jr.
Conformal Gravity Holography In Four Dimensions, Robert Mcnees
Conformal Gravity Holography In Four Dimensions, Robert Mcnees
Robert A McNees IV
We formulate fourdimensional conformal gravity with (anti–)de Sitter boundary conditions that are weaker than Starobinsky boundary conditions, allowing for an asymptotically subleading Rindler term concurrent with a recent model for gravity at large distances. We prove the consistency of the variational principle and derive the holographic response functions. One of them is the conformal gravity version of the Brown–York stress tensor, the other is a “partially massless response”. The on shell action and response functions are finite and do not require holographic renormalization. Finally, we discuss phenomenologically interesting examples, including the most general spherically symmetric solutions and rotating ...
Project X: Physics Opportunities, Andreas S. Kronfeld, Robert S. Tschirhart, Usama AlBinni, Wolfgang Altmannshofer, Charles Ankenbrandt, Kaladi Babu, Sunanda Banerjee, Matthew Bass, Brian Batell, David V. Baxter, Zurab Berezhiani, Marc Bergevin, Robert Bernstein, Sudeb Bhattacharya, Mary Bishai, Thomas Blum, S. Alex Bogacz, Stephen J. Brice, Joachim Brod, Alan Bross, Michael Buchoff, Thomas W. Burgess, Marcela Carena, Luis A. Castellanos, Subhasis Chattopadhyay, MuChun Chen, Daniel Cherdack, Norman H. Christ, Tim Chupp, Vincenzo Cirigliano, Pilar Coloma, Christopher E. Coppola, Ramanath Cowsik, J. Allen Crabtree, André De Gouvêa, JeanPierre Delahaye, Dmitri Denisov, Patrick Deniverville, Ranjan Dharmapalan, Alexander Dolgov, Georgi Dvali, Estia Eichten, Jürgen Engelfried, Phillip D. Ferguson, Tony Gabriel, Avraham Gal, Franz Gallmeier, Kenneth S. Ganezer, Susan Gardner
Project X: Physics Opportunities, Andreas S. Kronfeld, Robert S. Tschirhart, Usama AlBinni, Wolfgang Altmannshofer, Charles Ankenbrandt, Kaladi Babu, Sunanda Banerjee, Matthew Bass, Brian Batell, David V. Baxter, Zurab Berezhiani, Marc Bergevin, Robert Bernstein, Sudeb Bhattacharya, Mary Bishai, Thomas Blum, S. Alex Bogacz, Stephen J. Brice, Joachim Brod, Alan Bross, Michael Buchoff, Thomas W. Burgess, Marcela Carena, Luis A. Castellanos, Subhasis Chattopadhyay, MuChun Chen, Daniel Cherdack, Norman H. Christ, Tim Chupp, Vincenzo Cirigliano, Pilar Coloma, Christopher E. Coppola, Ramanath Cowsik, J. Allen Crabtree, André De Gouvêa, JeanPierre Delahaye, Dmitri Denisov, Patrick Deniverville, Ranjan Dharmapalan, Alexander Dolgov, Georgi Dvali, Estia Eichten, Jürgen Engelfried, Phillip D. Ferguson, Tony Gabriel, Avraham Gal, Franz Gallmeier, Kenneth S. Ganezer, Susan Gardner
Robert W. Pattie Jr.
A Lagrangian Which Mathematically Models Lambda Cdm Cosmology And Explains The Null Results Of Dark Astroparticle Searches., Hontas Farmer
A Lagrangian Which Mathematically Models Lambda Cdm Cosmology And Explains The Null Results Of Dark Astroparticle Searches., Hontas Farmer
Hontas F Farmer
Background: The Lambda CDM model or is the standard model of modern cosmology. It is named for dark energy and cold dark matter. This model contains a number of separate components with different mathematical formulations. Strong observational evidence for dark matter has been found by astronomy. At the same time astroparticle physics observations have not found solid evidence of dark matter. Purpose: The purpose of this paper is to reconcile observations of dark matter effects on the galactic and cosmological scales with the null results of astroparticle physics observations such as CDMS and ANTARES. This paper will also provide a ...
Supersymmetric MultiHiggs Doublet Model With NonLinear Electroweak Symmetry Breaking, T. E. Clark, S. T. Love, Tonnis Ter Veldhuis
Supersymmetric MultiHiggs Doublet Model With NonLinear Electroweak Symmetry Breaking, T. E. Clark, S. T. Love, Tonnis Ter Veldhuis
Tonnis ter Veldhuis
No abstract provided.
Holographic Renormalization Of Asymptotically Lifshitz Spacetimes, Robert Mcnees, Robert Mann
Holographic Renormalization Of Asymptotically Lifshitz Spacetimes, Robert Mcnees, Robert Mann
Robert A McNees IV
A variational formulation is given for a theory of gravity coupled to a massive vector in four dimensions, with Asymptotically Lifshitz boundary conditions on the fields. For theories with critical exponent z = 2 we obtain a welldefined variational principle by explicitly constructing two actions with local boundary counterterms. As part of our analysis we obtain solutions of these theories on a neighborhood of spatial infinity, study the asymptotic symmetries, and consider different definitions of the boundary stress tensor and associated charges. A constraint on the boundary data for the fields figures prominently in one of our formulations, and in that ...
Results From A Beam Test Of A Prototype Plt Diamond Pixel Telescope, R. HallWilton, R. Loos, V. Ryjov, M. Pernicka, S. Schmied, H. Steninger, V. Halyo, B. Harrop, A. Hunt, D. Marlow, B. Sands, D. Strickland, O. Atramentov, E. Bartz, J. Doroshenko, Y. Gershtein, D. Hits, S. Schnetzer, R. Stone, P. Bulter, S. Lansley, N. Rodrigues, W. Bugg, M Hollingsworth, Stefan Spanier, W. Johns
Results From A Beam Test Of A Prototype Plt Diamond Pixel Telescope, R. HallWilton, R. Loos, V. Ryjov, M. Pernicka, S. Schmied, H. Steninger, V. Halyo, B. Harrop, A. Hunt, D. Marlow, B. Sands, D. Strickland, O. Atramentov, E. Bartz, J. Doroshenko, Y. Gershtein, D. Hits, S. Schnetzer, R. Stone, P. Bulter, S. Lansley, N. Rodrigues, W. Bugg, M Hollingsworth, Stefan Spanier, W. Johns
stefan spanier
We describe results from a beam test of a telescope consisting of three planes of singlecrystal, diamond pixel detectors. This telescope is a prototype for a smallangle luminosity monitor, the Pixel Luminosity Telescope (PLT), for CMS. We recorded the pixel addresses and pulse heights of all pixels over threshold as well as the fastor signals from all three telescope planes. We present results on the telescope performance including occupancies, pulse heights, fastor efficiencies and particle tracking. These results show that the PLT design meets all required specifications.
Observation Of LongRange NearSide Angular Correlations In ProtonProton Collisions At The Lhc, Stefan Spanier
Observation Of LongRange NearSide Angular Correlations In ProtonProton Collisions At The Lhc, Stefan Spanier
stefan spanier
Results on twoparticle angular correlations for charged particles emitted in protonproton collisions at centerofmass energies of 0.9, 2.36, and 7 TeV are presented, using data collected with the CMS detector over a broad range of pseudorapidity (eta) and azimuthal angle (phi). Shortrange correlations in Delta(eta), which are studied in minimum bias events, are characterized using a simple "independent cluster" parametrization in order to quantify their strength (cluster size) and their extent in eta (cluster decay width). Longrange azimuthal correlations are studied differentially as a function of charged particle multiplicity and particle transverse momentum using a 980 inverse ...
Commissioning And Performance Of The Cms Pixel Tracker With Cosmic Ray, Serguei Chatrchyan Muons, Stefan Spanier
Commissioning And Performance Of The Cms Pixel Tracker With Cosmic Ray, Serguei Chatrchyan Muons, Stefan Spanier
stefan spanier
The pixel detector of the Compact Muon Solenoid experiment consists of three barrel layers and two disks for each endcap. The detector was installed in summer 2008, commissioned with charge injections, and operated in the 3.8 T magnetic field during cosmic ray data taking. This paper reports on the first running experience and presents results on the pixel tracker performance, which are found to be in line with the design specifications of this detector. The transverse impact parameter resolution measured in a sample of high momentum muons is 18 microns.
The Many Symmetries Of Calabi–Yau Compactifications, Moataz Emam
The Many Symmetries Of Calabi–Yau Compactifications, Moataz Emam
Moataz Emam
No abstract provided.
Polarimetry Studies For The Npdgamma Experiment At The Sns, Jonny Dadras
Polarimetry Studies For The Npdgamma Experiment At The Sns, Jonny Dadras
Jonny Dadras
The NPDGamma collaboration aims to measure a parityviolating directional gammaray asymmetry from the capture of polarized cold neutrons on protons. The asymmetry, predicted to be on the order of 50 ppb, is a result of the weak interaction between mesons and nucleons during the neutron capture reaction. The experiment is designed to make a statistics limited measurement of the asymmetry at the level of about 20%. The experiment will be carried out at the Fundamental neutron Physics Beamline (FnPB) at the Spallation Neutron Source (SNS). The neutron beam is polarized by a supermirror polarizer. A 9.5 G magnetic field ...
Performance Of A SingleCrystal DiamondPixel Telescope, R. HallWilton, V. Ryjov, M. Pernicka, V. Halyo, B. Harrop, A. Hunt, D. Marlow, E. Bartz, J. Doroshenko, D. Hits, S. Schnetzer, R. Stone, W. Bugg, M. Hollingsworth, Stefan Spanier, W. Johns
Performance Of A SingleCrystal DiamondPixel Telescope, R. HallWilton, V. Ryjov, M. Pernicka, V. Halyo, B. Harrop, A. Hunt, D. Marlow, E. Bartz, J. Doroshenko, D. Hits, S. Schnetzer, R. Stone, W. Bugg, M. Hollingsworth, Stefan Spanier, W. Johns
stefan spanier
We describe the results from a beam test of a telescope consisting of three planes of singlecrystal, diamond pixel detectors. This telescope is a prototype for a proposed smallangle luminosity monitor, the Pixel Luminosity Telescope (PLT), for CMS. We recorded the pixel addresses and pulse heights of all pixels over threshold as well as the fastor signals from all three telescope planes. We present results on the telescope performance including occupancies, pulse heights, fastor efficiencies and particle tracking. These results show that the PLT design concept is sound and indicate that the project is ready to proceed with the next ...
The Cms Experiment At The Cern Lhc, Cms Collaboration, R. Adolphi, Stefan Spanier
The Cms Experiment At The Cern Lhc, Cms Collaboration, R. Adolphi, Stefan Spanier
stefan spanier
No abstract provided.