Neutral-current electroweak physics and SMEFT studies at the EIC

Boughezal, Radja; Emmert, A.; Kutz, T.; Mantry, Sonny; Nycz, M.; Petriello, Frank; Şimşek, K.; Wiegand, Daniel; Zheng, X.

doi:10.1103/physrevd.106.016006

Cited by 13 publications

(8 citation statements)

References 32 publications

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“…Right panel: Error components for the polarization asymmetry at a future EIC as a function of bin number, adapted from Ref. [68]. The bins are ordered in the DIS momentum transfer Q 2 and Bjorken x.…”

Section: Interplay Of Pdf Fits and Smeft Fitsmentioning

confidence: 99%

“…Maximizing the potential of these measurements requires a precise determination of the polarized PDFs of the nucleons. The effect of PDFs and systematic errors on SMEFT parameter determinations with polarized deuteron and proton beams at an EIC was recently investigated [68]. Particularly in the high-luminosity phase of the EIC, polarized PDF errors are expected to form by far the largest source of systematic error on determinations of SMEFT parameters from polarized proton beams.…”

Section: Interplay Of Pdf Fits and Smeft Fitsmentioning

confidence: 99%

“…The results are compared to those obtained in a simultaneous fit of SMEFT and PDFs, when the PDFs are allowed to vary when varying the values of the Wilson coefficients (orange). Right panel: Error components for the polarization asymmetry at a future EIC as a function of bin number, adapted from Ref [68]…”

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confidence: 99%

See 2 more Smart Citations

Snowmass 2021 Whitepaper: Proton Structure at the Precision Frontier

Amoroso¹,

Apyan²,

Armesto³

et al. 2022

Acta Phys. Pol. B

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An overwhelming number of theoretical predictions for hadron colliders require parton distribution functions (PDFs), which are an important ingredient of theory infrastructure for the next generation of high-energy experiments. This whitepaper summarizes the status and future prospects for determination of high-precision PDFs applicable in a wide range of energies and experiments, in particular in precision tests of the Standard Model and in new physics searches at the high-luminosity Large Hadron Collider and Electron-Ion Collider. We discuss the envisioned advancements in experimental measurements, QCD theory, global analysis methodology, and computing that are necessary to bring unpolarized PDFs in the nucleon to the N2LO and N3LO accuracy in the QCD coupling strength. Special attention is given to the new tasks that emerge in the era of the precision PDF analysis, such as those focusing on the robust control of systematic factors both in experimental measurements and theoretical computations. Various synergies between experimental and theoretical studies of the hadron structure are explored, including opportunities for studying PDFs for nuclear and meson targets, PDFs with electroweak contributions or dependence on the transverse momentum, for incisive comparisons between phenomenological models for the PDFs and computations on discrete lattice, and for cross-fertilization with machine learning/AI approaches.

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Section: Interplay Of Pdf Fits and Smeft Fitsmentioning

confidence: 99%

Section: Interplay Of Pdf Fits and Smeft Fitsmentioning

confidence: 99%

See 1 more Smart Citation

Snowmass 2021 Whitepaper: Proton Structure at the Precision Frontier

Amoroso¹,

Apyan²,

Armesto³

et al. 2022

Acta Phys. Pol. B

View full text Add to dashboard Cite

show abstract

“…Indeed, there are unique processes beyond the SM for EIC to explore [5]. First, the precision determinations for the EW neutral current [6], the anomalous coupling such as Zb b [7,8] as well as the weak mixing angle [5,9,10] will provide sensitive probes of new light neutral gauge boson interactions (Z ) [11][12][13][14]. The intense incoming electron beam provides a good laboratory for searching for charged lepton-flavor transition [15].…”

Section: Introductionmentioning

confidence: 99%

Heavy neutral leptons at the Electron-Ion Collider

Batell

Ghosh

Han

et al. 2023

J. High Energ. Phys.

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The future Electron-Ion Collider (EIC) at Brookhaven National Laboratory, along with its primary capacity to elucidate the nuclear structure, will offer new opportunities to probe physics beyond the Standard Model coupled to the electroweak sector. Among the best motivated examples of such new physics are new heavy neutral leptons (HNLs), which are likely to play a key role in neutrino mass generation and lepton number violation. We study the capability of the EIC to search for HNLs, which can be produced in electron- proton collisions through charged current interactions as a consequence of their mixing with light neutrinos. We find that, with the EIC design energy and integrated luminosity, one is able to probe HNLs in the mass range of 1 – 100 GeV with mixing angles down to the order of 10−4 − 10−3 through the prompt decay signatures, and in the mass range of 1 10 GeV with |Ue|2 ~ 10−6 – 10−4 via the displaced decay signatures. We also consider the invisible mode where an HNL is undetected or decaying to dark sector particles. One could potentially probe heavy HNLs for mixing angles in the window 10−3 – 10−2, provided SM background systematics can be brought under control. These searches are complementary to other probes of HNLs, such as neutrino-less double-β decay, meson decay, fixed-target, and high-energy collider experiments.

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“…Indeed, there are unique processes beyond the SM for EIC to explore [5]. First, the precision determinations for the EW neutral current [6] and the weak mixing angle [5,7,8] will provide sensitive probes of new light neutral gauge boson interactions (Z ) [9][10][11][12]. The intense incoming electron beam provides a good laboratory for searching for charged lepton-flavor transition.…”

Section: Introductionmentioning

confidence: 99%

Heavy Neutral Leptons at the Electron-Ion Collider

Batell¹,

Ghosh²,

Han³

et al. 2022

Preprint

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The future Electron-Ion Collider (EIC) at Brookhaven National Laboratory, along with its primary capacity to elucidate the nuclear structure, will offer new opportunities to probe physics beyond the Standard Model coupled to the electroweak sector. Among the best motivated examples of such new physics are new heavy neutral leptons (HNLs), which are likely to play a key role in neutrino mass generation and lepton number violation. We study the capability of the EIC to search for HNLs, which can be produced in electronproton collisions through charged current interactions as a consequence of their mixing with light neutrinos. We find that, with the EIC design energy and integrated luminosity, one is able to probe HNLs in the mass range of 1 GeV−100 GeV with mixing angles down to the order of 10 −4 − 10 −3 through the prompt decay, and 10 −6 − 10 −4 via the displaced decay signatures. We also consider the invisible mode where an HNL is undetected or decaying to dark sector particles. One could potentially probe heavy HNLs for mixing angles in the window 10 −3 − 10 −2 , provided SM background systematics can be brought under control. These searches are complementary to other probes of HNLs, such as neutrino-less double-β decay, meson decay, fixed-target, and high-energy collider experiments.

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Neutral-current electroweak physics and SMEFT studies at the EIC

Cited by 13 publications

References 32 publications

Snowmass 2021 Whitepaper: Proton Structure at the Precision Frontier

Snowmass 2021 Whitepaper: Proton Structure at the Precision Frontier

Heavy neutral leptons at the Electron-Ion Collider

Heavy Neutral Leptons at the Electron-Ion Collider

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