Author
T.J. Peterson
Bio: T.J. Peterson is an academic researcher from Fermilab. The author has contributed to research in topics: Superconducting magnet & Large Hadron Collider. The author has an hindex of 11, co-authored 58 publications receiving 451 citations.
Papers published on a yearly basis
Papers
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TL;DR: The Mu2e experiment at Fermilab will search for charged lepton flavor violation via the coherent conversion process with a sensitivity approximately four orders of magnitude better than the current world's best limits for this process.
Abstract: Author(s): Project, The Mu2e; Collaboration; Abrams, RJ; Alezander, D; Ambrosio, G; Andreev, N; Ankenbrandt, CM; Asner, DM; Arnold, D; Artikov, A; Barnes, E; Bartoszek, L; Bernstein, RH; Biery, K; Biliyar, V; Bonicalzi, R; Bossert, R; Bowden, M; Brandt, J; Brown, DN; Budagov, J; Buehler, M; Burov, A; Carcagno, R; Carey, RM; Carosi, R; Cascella, M; Cauz, D; Cervelli, F; Chandra, A; Chang, JK; Cheng, C; Ciambrone, P; Coleman, RN; Cooper, M; Corcoran, MC; Cordelli, M; Davydov, Y; Gouvea, AL de; Lorenzis, L De; Debevec, PT; DeJongh, F; Densham, C; Deuerling, G; Dey, J; Falco, S Di; Dixon, S; Djilkibaev, R; Drendel, B; Dukes, EC; Dychkant, A; Echenard, B; Ehrlich, R; Evans, N; Evbota, D; Fang, I; Fast, JE; Feher, S; Fischler, M; Frank, M; Frlez, E; Fung, SS; Gallo, G; Galucci, G; Gaponenko, A; Genser, K; Giovannella, S; Glagolev, V; Glenzinski, D; Gnani, D; Goadhouse, S; Gollin, GD; Grace, C; Grancagnolo, F; Group, C; Hanson, J; Hanson, S; Happacher, F; Heckmaier, E; Hedin, D; Hertzog, DW; Hirosky, R; Hitlin, DG; Ho, E; Huang, X | Abstract: Mu2e at Fermilab will search for charged lepton flavor violation via the coherent conversion process mu- N --g e- N with a sensitivity approximately four orders of magnitude better than the current world's best limits for this process. The experiment's sensitivity offers discovery potential over a wide array of new physics models and probes mass scales well beyond the reach of the LHC. We describe herein the conceptual design of the proposed Mu2e experiment. This document was created in partial fulfillment of the requirements necessary to obtain DOE CD-1 approval, which was granted July 11, 2012.
114 citations
TL;DR: Fermilab, in collaboration with LBNL and BNL, is developing a quadrupole for installation in the interaction region inner triplets of the LHC, which is required to have an operating gradient of 215 T/m across a 70 mm coil bore, and operates in superfluid helium at 1.9 K.
Abstract: Fermilab, in collaboration with LBNL and BNL, is developing a quadrupole for installation in the interaction region inner triplets of the LHC. This magnet is required to have an operating gradient of 215 T/m across a 70 mm coil bore, and operates in superfluid helium at 1.9 K. A 2 m magnet program addressing mechanical, magnetic, quench protection, and thermal issues associated with the design was completed earlier this year, and production of the first full length, cryostatted prototype magnet is underway. This paper summarizes the conclusions of the 2 m program, and the design and status of the first full-length prototype magnet.
24 citations
TL;DR: In this article, the concept of 90mm aperture high-gradient quadrupoles based on the Nb/sub 3/Sn superconductor was developed at Fermilab for possible 2nd generation IRs with the similar optics as in the current low-beta insertions.
Abstract: Conceptual designs of 90-mm aperture high-gradient quadrupoles based on the Nb/sub 3/Sn superconductor, are being developed at Fermilab for possible 2nd generation IRs with the similar optics as in the current low-beta insertions. Magnet designs and results of magnetic, mechanical, thermal and quench protection analysis for these magnets are presented and discussed.
19 citations
01 Aug 1998
TL;DR: The conceptual design for the cryogenics of the interaction region final focus superconducting magnets and the integration of this magnet system into the overall LHC cryogenic system was discussed in this article.
Abstract: The LHC interaction region final focus magnets will include four superconducting quadrupoles cooled with pressurized, static superfluid helium at 19 K The heat absorbed in pressurized He II, which may be more than 10 Watts per meter due to dynamic heating from the particle beam halo, will be transported to saturated He II at 18 K and removed by the 16 mbar vapor This paper discusses the conceptual design for the cryogenics of the interaction region final focus superconducting magnets and the integration of this magnet system into the overall LHC cryogenic system
18 citations
TL;DR: A double bath superfluid helium dewar has been constructed and operated at Fermilab's Magnet Test Facility as mentioned in this paper, which can also provide a subcooled Helium I environment for tests; the entire temperature range from 4.4 K to 1.8 K at 0.12 MPa.
Abstract: A double bath superfluid helium dewar has been constructed and operated at Fermilab’s Magnet Test Facility. The 1.8 K portion of the dewar is sized to contain a superconducting magnet up to 0.5 meters in diameter and 4 meters long in a vertical orientation in 0.12 MPa pressurized superfluid. The dewar can also provide a subcooled Helium I environment for tests; the entire temperature range from 4.4 K to 1.8 K at 0.12 MPa is available. This paper describes the system design, lambda plate, heat exchanger, and performance.
16 citations
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DOI•
01 Jan 2006
TL;DR: In this article, the authors dealt with TTF/FLASH in the XFEL context, general layout of the X-FEL facility, the X FEL accelerator, undulators for SAES and spontaneous emission, infrastructure and auxiliary systems, commissioning and operation, project management and organization, cost and time schedule.
Abstract: The following topics are dealt with: TTF/FLASH in the XFEL context, general layout of the XFEL facility, the XFEL accelerator, undulators for SAES and spontaneous emission, photon beamlines and scientific instruments, infrastructure and auxiliary systems, commissioning and operation, project management and organization, cost and time schedule. (HSI)
445 citations
TL;DR: In this article, the authors review recent progress in the phenomenology of RH neutrinos and discuss the mass ranges suggested by hints for neutrino oscillation anomalies and DR (eV), sterile NE DM scenarios (keV) and experimentally testable theories of baryogenesis (GeV to TeV).
Abstract: Neutrinos are the only particles in the Standard Model (SM) of particle physics that have only been observed with left handed chirality to date. If right handed (RH) neutrinos exist, they could be responsible for several phenomena that have no explanation within the SM, including neutrino oscillations, the baryon asymmetry of the universe, dark matter (DM) and dark radiation (DR). After a pedagogical introduction, we review recent progress in the phenomenology of RH neutrinos. We in particular discuss the mass ranges suggested by hints for neutrino oscillation anomalies and DR (eV), sterile neutrino DM scenarios (keV) and experimentally testable theories of baryogenesis (GeV to TeV). We summarize constraints from theoretical considerations, laboratory experiments, astrophysics and cosmology for each of these.
365 citations
TL;DR: In this article, the authors overview the current status of τ physics, highlighting the most recent developments, and discuss the prospects for future improvements, as well as discuss the potential of future improvements.
307 citations
TL;DR: In this article, a global fit of the Minimal Unitarity Violation (MUV) scheme parameters to the present experimental data is performed, which yields the up-to-date constraints on leptonic non-unitarity.
Abstract: The non-unitarity of the effective leptonic mixing matrix at low energies is a generic signal of extensions of the Standard Model (SM) with extra fermionic singlet particles, i.e. “sterile” or “right-handed” neutrinos, to account for the observed neutrino masses. The low energy effects of such extensions can be described in a model-independent way by the Minimal Unitarity Violation (MUV) scheme, an effective field theory extension of the SM. We perform a global fit of the MUV scheme parameters to the present experimental data, which yields the up-to-date constraints on leptonic non-unitarity. Furthermore, we investigate the sensitivities and discovery prospects of future experiments. In particular, FCC-ee/TLEP would be a powerful probe of flavour-conserving non-unitarity for singlet masses up to ∼60 TeV. Regarding flavour-violating non-unitarity, future experiments on muon-to-electron conversion in nuclei could even probe extensions with singlet masses up to ∼0.3 PeV.
299 citations
TL;DR: The Mu2e experiment at Fermilab will search for charged lepton flavor violation via the coherent conversion process with a sensitivity approximately four orders of magnitude better than the current world's best limits for this process as discussed by the authors.
Abstract: Author(s): Bartoszek, L; et al. | Abstract: The Mu2e experiment at Fermilab will search for charged lepton flavor violation via the coherent conversion process mu- N --g e- N with a sensitivity approximately four orders of magnitude better than the current world's best limits for this process. The experiment's sensitivity offers discovery potential over a wide array of new physics models and probes mass scales well beyond the reach of the LHC. We describe herein the preliminary design of the proposed Mu2e experiment. This document was created in partial fulfillment of the requirements necessary to obtain DOE CD-2 approval.
228 citations