Future deep inelastic scattering with the LHeC

Klein, M.

doi:10.1142/9789813238053_0015

Cited by 15 publications

(22 citation statements)

References 63 publications

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“…We anticipate further improvements in the cut criteria and tagging efficiencies that lead to larger significance and signal-to-background. 5 More sophisticated and systematic analysis (e.g., the machine learning method) may also be needed for precise measurements of the charm Yukawa coupling [51,52]. Nevertheless, the crude estimation for the sensitivity of the charm Yukawa coupling shows a significant improvement over the results of the LHC [33].…”

Section: Resultsmentioning

confidence: 99%

Probing the charm Yukawa coupling at future e−p and e+e−
Li
¹
,
Wang
²
,
Wang
³

et al. 2019
Phys. Rev. D
9
0
4
0
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The Large Hadron Collider (LHC) has provided direct evidence of Yukawa couplings between the third generation charged fermions and the 125 GeV Higgs boson. Whether the first two generation charged fermions arise from exactly the same mechanism becomes the next interesting question. Therefore, direct measurements of charm or muon Yukawa couplings will be crucial to answering this puzzle. The charm Yukawa measurement at the LHC suffers from severe QCD background and it is extremely difficult to reach the sensitivity. In this paper, we compare the potential of probing charm Yukawa coupling at the two proposed future "Higgs Factory" experiments, the Large Hadron electron Collider (LHeC) and Circular electron positron collider (CEPC). At the LHeC, Higgs bosons will be produced via weak boson fusion and the energetic forward jet may suppress the background significantly. However, due to huge γ − g scattering background, the potential of LHeC search is still limited. With a −80% polarized electron beam of 60 GeV, the signal significance can only reach 2σ for κ c ≃ 1.18 with a 3 ab −1 integrated luminosity. In contrast, measurement at the CEPC can reach 5.8σ for κ c ≃ 1 with a 2 ab −1 of data.

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Section: Resultsmentioning

confidence: 99%

Probing the charm Yukawa coupling at future e−p and e+e−
Li
¹
,
Wang
²
,
Wang
³

et al. 2019
Phys. Rev. D
9
0
4
0
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show abstract

“…It will also provide a kinematically well defined reference to quantify cold nuclear matter effects. For completeness it is noted that a similar accelerator proposal (LHeC) with complementary kinematic coverage and physics programe is being evaluated by the European Strategy for Particle Physics [9,10]. The EIC is considered a key component for the future nuclear physics program in the US and as such is among the key recommendations of the Nuclear Science Advisory Committee (NSAC) Long Range Plan from 2015.…”

Section: The Electron Ion Collidermentioning

confidence: 99%

Nuclear Physics at the Energy Frontier: Recent Heavy Ion Results from the Perspective of the Electron Ion Collider

Morreale

2019

Universe

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Quarks and gluons are the fundamental constituents of nucleons. Their interactions rather than their mass, is responsible for 99% of the mass of all visible matter in the universe. Measuring the fundamental properties of matter has had a large impact on our understanding of the nucleon structure and it has given us decades of research and technological innovation. Despite the large number of discoveries made, many fundamental questions remain open and in need of a new and more precise generation of measurements. The future Electron Ion Collider (EIC) will be a machine dedicated to hadron structure research. It will study the content of protons and neutrons in a largely unexplored regime in which gluons are expected to dominate and eventually saturate. While the EIC will be the machine of choice to quantify this regime, recent surprising results from the heavy ion community begin to exhibit similar signatures as those expected from a regime dominated by gluons. Many of the heavy ion results that will be discussed in this document highlight the kinematic limitations of hadron-hadron and hadron-nucleus collisions. The reliability of using as a reference proton-proton (pp) and proton-Nucleus(pA) collisions to quantify and disentangle vacuum and Cold Nuclear Matter (CNM) effects from a Quark Gluon Plasma (QGP) may be under question. An selection of relevant pp and pA results which highlight the need of an EIC will be presented.

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“…Establishing the charm Yukawa coupling probably requires a lepton collider (see e.g. the analysis for the ILC [16]), or an ep facility [17]. Importantly, the total width can also be strongly constrained at e + e − colliders.…”

Section: Pos(lhcp2018)304mentioning

confidence: 99%

Theory vision

Salam¹

2018

Proceedings of Sixth Annual Conference on Large Hadron Collider Physics — PoS(LHCP2018)

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Particle physics is sometimes described as going through a crisis, notably because of the continued lack of discovery of physics beyond the Standard Model, despite the LHC having operated at close to maximal energy for some years now. Here, I argue that we should not underestimate the significance of recent progress and future prospects in the Higgs sector of the Standard Model. This is especially the case for the Yukawa interactions and the structure of the Higgs potential, both of which are unlike any sector that has been established and stress-tested before in particle physics. Other topics that I touch on include the still substantial scope for increasing the reach of searches at LHC, the increasing role of precision in hadron-collider physics and the rich interplay that is developing between heavy-ion and proton-proton physics.

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Future deep inelastic scattering with the LHeC

Cited by 15 publications

References 63 publications

Probing the charm Yukawa coupling at future e−p and e+e−
Li
¹
,
Wang
²
,
Wang
³

et al. 2019
Phys. Rev. D
9
0
4
0
View full text Add to dashboard Cite

Probing the charm Yukawa coupling at future e−p and e+e−
Li
¹
,
Wang
²
,
Wang
³

et al. 2019
Phys. Rev. D
9
0
4
0
View full text Add to dashboard Cite

Nuclear Physics at the Energy Frontier: Recent Heavy Ion Results from the Perspective of the Electron Ion Collider

Theory vision

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Future deep inelastic scattering with the LHeC

Cited by 15 publications

References 63 publications

Probing the charm Yukawa coupling at future e−p and e+e−Li1, Wang2, Wang3 et al. 2019Phys. Rev. D9040View full textAdd to dashboardCite

Probing the charm Yukawa coupling at future e−p and e+e−Li1, Wang2, Wang3 et al. 2019Phys. Rev. D9040View full textAdd to dashboardCite

Nuclear Physics at the Energy Frontier: Recent Heavy Ion Results from the Perspective of the Electron Ion Collider

Theory vision

Contact Info

Product

Resources

About

Probing the charm Yukawa coupling at future e−p and e+e−
Li
¹
,
Wang
²
,
Wang
³

et al. 2019
Phys. Rev. D
9
0
4
0
View full text Add to dashboard Cite

Probing the charm Yukawa coupling at future e−p and e+e−
Li
¹
,
Wang
²
,
Wang
³

et al. 2019
Phys. Rev. D
9
0
4
0
View full text Add to dashboard Cite