HyperCP: A high-rate spectrometer for the study of charged hyperon and kaon decays

Burnstein, R. A.; Chakravorty, A.; Chan, A. W.; Chen, Y.C.; Choong, Woon-Seng; Clark, K.; Dukes, E. C.; Durandet, C.; Félix, J.; Fuzesy, R.; Gidal, G.; Gu, Ping; Gustafson, H. R.; Ho, C.; Holmstrom, T.; Huang, M.; James, C.; Jenkins, C.M.; Jones, T. D.; Kaplan, Daniel M.; Lederman, L. M.; Leros, N.; Longo, Michael J.; Lopez, F.; Lu, L. C.; Luebke, W.; Luk, Kam Biu; Nelson, K. S.; Park, H.K.; Perroud, J. P.; Rajaram, D.; Rubin, H. A.; Teng, P. K.; Turko, B.; Volk, J.; White, C.; White, S. L.; Żyla, P.

doi:10.1016/j.nima.2004.12.031

Cited by 32 publications

(28 citation statements)

References 19 publications

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“…This region is disfavoured by visible B decays and invisible kaon decays. Even so, the lifetime of such a particle along with the expected boost factor of 100-200 suggested by the hyperon momentum gives γβcτ > 13 m, much larger than the longitudinal vertex resolution of about 0.2 m [76]. Additionally, it appears that no value of B SM could resolve the anomaly.…”

Section: Jhep02(2014)123mentioning

confidence: 92%

Phenomenology of a very light scalar (100 MeV < m h < 10 GeV) mixing with the SM Higgs

Clarke

Foot

Volkas

2014

J. High Energ. Phys.

150

161

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In this paper we investigate the phenomenology of a very light scalar, h, with mass 100 MeV < m h < 10 GeV, mixing with the SM Higgs. As a benchmark model we take the real singlet scalar extension of the SM. We point out apparently unresolved uncertainties in the branching ratios and lifetime of h in a crucial region of parameter space for LHC phenomenology. Bounds from LEP, meson decays and fixed target experiments are reviewed. We also examine prospects at the LHC. For m h m B the dominant production mechanism is via meson decay; our main result is the calculation of the differential p T spectrum of h scalars originating from B mesons and the subsequent prediction of up to thousands of moderate (triggerable) p T displaced dimuons possibly hiding in the existing dataset at ATLAS/CMS or at LHCb. We also demonstrate that the subdominant V h production channel has the best sensitivity for m h m B and that future bounds in this region could conceivably compete with those of LEP.

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Section: Jhep02(2014)123mentioning

confidence: 92%

Phenomenology of a very light scalar (100 MeV < m h < 10 GeV) mixing with the SM Higgs

Clarke

Foot

Volkas

2014

J. High Energ. Phys.

150

161

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“…4 Hyperon CPV measurements have yet to reach Standard Model (CKM) sensitivity levels, but possible new-physics contributions can stand out, and be detected, against the small CKM background. The world's largest hyperon samples are from the Fermilab HyperCP Experiment [39], including 2.1 × 10 9 reconstructed Ξ − and 0.5 × 10 9 Ξ + decays, and 10 10 produced Σ + . The main HyperCP goal was to substantially advance sensitivity to…”

Section: Hyperon Cp Violation and Rare Decaysmentioning

confidence: 99%

Intensity-Frontier Antiproton Physics with The Antiproton Annihilation Spectrometer (TAPAS) at Fermilab

Apollinari¹,

Asner²,

Baldini³

et al. 2011

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SummaryThe Fermilab Antiproton Source is the world's most intense source of antimatter. With the Tevatron program now behind us, this unique facility can help make the case for Fermilab's continued accelerator operations. The Antiproton Source can be used for unique, dedicated antimatter studies, including medium-energy p-annihilation experiments.We propose to assemble a powerful, yet cost-effective, solenoidal magnetic spectrometer for antiproton-annihilation events, and to use it at the Fermilab Antiproton Accumulator to measure the charm production cross section, study rare hyperon decays, search for hyperon CP asymmetry, precisely measure the properties of several charmonium and nearby states, and make the first measurements of the Drell-Yan continuum in medium-energy antiproton annihilation. Should the charm production cross section be as large as some have proposed, we will also be able to measure D 0 -D 0 mixing with high precision and discover (or sensitively limit) charm CP violation. The observation of charm or hyperon CP violation would be evidence for physics beyond the Standard Model, with possible implications for the origin of the baryon asymmetry of the universe -the question of what happened to all the antimatter that must have been produced in the Big Bang.The experiment will be carried out by an international collaboration and will require some four years of running time. As possibly the sole hadron experiment in progress at Fermilab during that time, it will play an important role in maintaining a broad particle physics program at Fermilab and in the U.S. It will thus help us to continue attracting creative and capable young people into science and technology, and introducing them to the important technologies of accelerators, detectors, and data acquisition and analysiskey roles in society that accelerator-based particle physics has historically played.i

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“…It is the final detector in the spectrometer and also functions as a beam dump. It was previously used in HyperCP [7]. Most of the active region is composed of lead sheets.…”

Section: Hadron Calorimetermentioning

confidence: 99%

Measurement of the charged kaon mass with the MIPP RICH

Graf

2008

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HyperCP: A high-rate spectrometer for the study of charged hyperon and kaon decays

Cited by 32 publications

References 19 publications

Phenomenology of a very light scalar (100 MeV < m h < 10 GeV) mixing with the SM Higgs

Phenomenology of a very light scalar (100 MeV < m h < 10 GeV) mixing with the SM Higgs

Intensity-Frontier Antiproton Physics with The Antiproton Annihilation Spectrometer (TAPAS) at Fermilab

Measurement of the charged kaon mass with the MIPP RICH

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