PIP2-BD: GeV Proton Beam Dump at Fermilab's PIP-II Linac

Toups, M.; Water, R. G. Van de; Batell, Brian; Brice, S. J.; deNiverville, Patrick; Eldred, Jeffrey; Harnik, Roni; Kelly, Kevin J.; Kim, Doojin; Kobilarcik, Tom; Krnjaic, Gordan; Littlejohn, B. R.; Louis, Bill; Machado, Pedro A. N.; Pavlovic, Z.; Pellico, W.; Shaevitz, M. H.; Snopok, P.; Tayloe, R.; Thornton, R. T.; Zettlemoyer, J.; Zwaska, Bob

doi:10.48550/arxiv.2203.08079

Cited by 3 publications

(4 citation statements)

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“…Section 3.2 above provides an outline to the AR design known as PAR, which we can consider as a reference design for the evaluation of PIP-II era capabilities, including a cost analysis in Section 7.10. More compact and/or higher power scenarios have been discussed in [5,6].…”

Section: S0b Experimentsmentioning

confidence: 99%

Report from the Fermilab Proton Intensity Upgrade Central Design Group

Ainsworth¹

2023

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The timeline for power and POT delivery is laid out in Figure 1 compared to the timeline if no improvements were made beyond those of the PIP-II Project.Taking the roughly estimated cost of the Main Injector cycle time reduction and reliability improvements and combining it with the cost ranges of the mid-capability RCS or SRF Linac option produces an expected cost range of $1,000M to $2,500M for the ACE plan to be executed over the 2020's and 2030's. Note this is the full cost and does not take into account international contributions which were substantial for the PIP-II Project.The first component of the ACE plan, the Main Injector modifications, are critical to improve the complex's reliability. The Main Injector cycle time reduction will significantly boost power to LBNF in a timely way, but this extra power at 120 GeV is at the expense of power available at 8 GeV. The Booster replacement is needed to provide the extra power and flexibility at all energies. Overall the ACE program will provide proton spigots to serve experiments exploring neutrinos, the dark sector, dark matter, CLFV, as well as free-energy for new ideas.The Fermilab Booster has served the accelerator complex for 50 years, but it is not capable of serving the laboratory for the next 50 years. A Booster replacement will be needed for its superior capacity, capability, and reliability. The ACE plan delivers a timely, higher POT to LBNF than PIP-II alone could provide, and a Booster Replacement that will provide the needed capacity, capability, and reliability for a broad and diverse program of experiments.Looking ahead toward the vision of a multi-TeV collider based at Fermilab, the Booster replacement could provide an essential first step towards an accelerator complex capable of serving as the front end of such a collider. 7.6.2 Additional Technical Considerations .

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Section: S0b Experimentsmentioning

confidence: 99%

Report from the Fermilab Proton Intensity Upgrade Central Design Group

Ainsworth¹

2023

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“…Significant R&D on target materials will be essential to ensure target reliability in Phase II and allow for accurate prediction of the component lifetimes [99]. Additional information as well as details on physics opportunities with Fermilab beam upgrade paths are discussed in [4,5,13,[100][101][102].…”

Section: Horn-focused Neutrino Beamsmentioning

confidence: 99%

“…The NA61/SHINE, EMPHATIC and DsTau/NA65 experiments are in the midst of program of measurements aimed at improving flux determination at these beamlines. Additionally, upgrades to the Fermilab accelerator complex [5,105] will enable new proton beam dump facilities at PIP II (PIP2-BD [101]) and the SBN (SBN-BD [102]).…”

Section: Horn-focused Neutrino Beamsmentioning

confidence: 99%

Snowmass Neutrino Frontier Report

Huber¹,

Scholberg²,

Worcester³

et al. 2022

Preprint

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“…Great care has been taken in quantifying the phenomenological implications of dark matter in this model considering alternative boundary condition Figure 6.10: Current and future reach (upper bound) on g µτ from neutrino experiments, including Borexino and white dwarfs (first row) and the CEνNS experiments (second row). In addition to the future CEνVS experiments depicted here, the proposed PIP-II linac at Fermilab expects to probe the Z ′ parameter space region favoured by (g − 2) µ through this interaction channel [116]. The dashed curves correspond to the kinetic mixing scenario with ε UV = 0, and the solid curves correspond to the kinetic mixing scenario with ε IR = 0 which are much weaker.…”

Section: Neutrino Probes Of the (G − 2) µ Parameter Spacementioning

confidence: 92%

Dark Matter Phenomenology in the (g − 2)μ Motivated U(1)Lμ−Lτ Model Under a General Treatment of Kinetic Mixing

Hapitas¹

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The gauged U (1) Lµ−Lτ extension of the Standard Model is a very simple framework that can alleviate the discrepancy in the anomalous magnetic dipole moment of the muon, reinforced by the recent Fermilab measurement. In this thesis, we introduce a dark matter (DM) candidate to the theory and proceed to study experimental probes of the model's parameter space with a general treatment of kinetic mixing between the Z ′ gauge boson of the U (1) Lµ−Lτ symmetry and the Standard Model photon. The physical value of the total kinetic mixing depends on a free parameter of the model and the energy scale of a given process. Specifically, after addressing the (g − 2) µ anomaly with the Z ′ boson, L µ − L τ charged dark matter with a thermal origin is explored, where we demonstrate that existing DM direct detection constraints are sensitive to the freedom in the kinetic mixing and can be substantially weakened if the total mixing parameter approaches zero in the low momentum transfer limit. Furthermore, we show for the same kinetic mixing scenario that this model predicts a novel recoil energy spectrum in future direct detection experiments. Finally, the effects of a general treatment of kinetic mixing on neutrino probes of the parameter space of the Z ′ are quantified. We find that constraints derived from the Borexino experiment (measuring solar electron-neutrino scattering), several experiments (both current and future) that study the process of coherent elastic neutrino nucleus scattering (CEνNS), and white dwarf cooling, are collectively not strong enough to rule out the region of the U (1) Lµ−Lτ parameter space that alleviates the (g − 2) µ tension. This is a positive result, since the avoidance of these constraints allows for a simultaneous explanation of both DM and the muon (g − 2) µ anomaly in this model.The joint efforts of future neutrino and DM experiments along with precision spectral measurement will be the key in testing such a theory. i Statement of OriginalityAll of the work presented and contained within this thesis is original material and has been solely created and written by myself, unless explicitly stated and/or referenced from external sources. I acknowledge Carleton's statement regarding academic integrity and recognize the consequences should this policy be breached. iii 6.10 Current and future reach (upper bound) on g µτ from neutrino experiments, including Borexino and white dwarfs (first row) and the CEνNS experiments (second row). In addition to the future CEνVS experiments depicted here, the proposed PIP-II linac at Fermilab expects to probe the Z ′ parameter space region favoured by (g − 2) µ through this interaction channel [116]. The dashed curves correspond to the kinetic mixing scenario with ε UV = 0, and the solid curves correspond to the kinetic mixing scenario with ε IR = 0 which are much weaker. . . . . . 111 xiv

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PIP2-BD: GeV Proton Beam Dump at Fermilab's PIP-II Linac

Cited by 3 publications

References 34 publications

Report from the Fermilab Proton Intensity Upgrade Central Design Group

Report from the Fermilab Proton Intensity Upgrade Central Design Group

Snowmass Neutrino Frontier Report

Dark Matter Phenomenology in the (g − 2)μ Motivated U(1)Lμ−Lτ Model Under a General Treatment of Kinetic Mixing

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