Extension of the J-PARC Hadron Experimental Facility: Third White Paper

Aoki, Kazuo; Fujioka, Hiroyuki; Gogami, T.; Hidaka, Yoshimasa; Hiyama, Emiko; Honda, Ryumon; Ichikawa, Y.; Ieiri, M.; Isaka, M.; Ishii, Noriyoshi; Ishikawa, T.; Komatsu, Yusuke; Komatsubara, T. K.; Lim, GeiYoub; Miwa, K.; Morino, Yuhei; Nagae, T.; Nagao, Shijo; Nakamura, S. N.; Nanjo, H.; Naruki, M.; Nemura, Hidekatsu; Nomura, T.; Noumi, H.; Ohnìshì, H.; Ozawa, K.; Sakuma, F.; Sawada, S.; Sekihara, Takayasu; Shim, Sang-In; Shiomi, K.; Shirotori, K.; Tajima, Y.; Takahashi, Hajime; Takahashi, T.; Takeuchi, Shuhei; Takizawa, M.; Tamura, H.; Tanida, K.; Ukai, M.; Yamamoto, T. O.; Yamamoto, Yasuo

doi:10.48550/arxiv.2110.04462

Cited by 19 publications

(30 citation statements)

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“…If we take the couplings in Eq. (6) to be defined at the EW scale, µ W = O(M Z ), the renormalization group (RG) evolution from Λ UV to µ W should be taken into account and can be extracted from Refs. [95][96][97][98].…”

Section: Qcd Axion and Axion-like Particles (Alps)mentioning

confidence: 99%

“…Performing a chiral rotation of the right-handed fermions f c , these couplings can be mapped into the basis in Eqs. (5)(6)…”

Section: A Simplified Model Of Prompt Alp Decays To + − Final Statesmentioning

confidence: 99%

“…Direct searches exclude the simplest hidden sector scenarios, such as dark Higgs bosons and dark photons, from accounting for the observed muon g − 2 assuming the mediator decays either invisibly or to pairs of SM fermions (for a recent summary, see Ref. [202]) 6 . If, however, the new particles have an enhanced coupling to muons relative to electrons and quarks, many of the direct searches can be evaded.…”

Section: Leptonic Force Mediatorsmentioning

confidence: 99%

“…The next generation KOTO step-2 experiment with a target single event sensitivity of O(10 −13 ) has been discussed in Ref. [5,6]. Higher K L flux and harder momentum spectrum for step-2 will be provided by a new beam line with a 5 • extraction angle.…”

Section: The Koto Experiments and The Future Program At J-parcmentioning

confidence: 99%

“…A new proposal for a continuing ultra-rare kaon decay experiments at CERN, including exper-iments with high-intensity K + and K L beams, is in preparation [3,4] and a new experimental setup for KOTO has been proposed [5,6]. We comment throughout the paper on how these proposals could ameliorate the reach on light new physics.…”

Section: Introductionmentioning

confidence: 99%

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New Physics Searches at Kaon and Hyperon Factories

Goudzovski¹,

Redigolo²,

Tobioka³

et al. 2022

Preprint

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Rare meson decays are among the most sensitive probes of both heavy and light new physics. Among them, new physics searches using kaons benefit from their small total decay widths and the availability of very large datasets. On the other hand, useful complementary information is provided by hyperon decay measurements. We summarize the relevant phenomenological models and the status of the searches in a comprehensive list of kaon and hyperon decay channels. We identify new search strategies for under-explored signatures, and demonstrate that the improved sensitivities from current and nextgeneration experiments could lead to a qualitative leap in the exploration of light dark sectors.

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Section: Qcd Axion and Axion-like Particles (Alps)mentioning

confidence: 99%

“…Performing a chiral rotation of the right-handed fermions f c , these couplings can be mapped into the basis in Eqs. (5)(6)…”

Section: A Simplified Model Of Prompt Alp Decays To + − Final Statesmentioning

confidence: 99%

Section: Leptonic Force Mediatorsmentioning

confidence: 99%

Section: The Koto Experiments and The Future Program At J-parcmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

New Physics Searches at Kaon and Hyperon Factories

Goudzovski¹,

Redigolo²,

Tobioka³

et al. 2022

Preprint

Self Cite

View full text Add to dashboard Cite

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Exclusive production of a pair of high transverse momentum photons in pion-nucleon collisions for extracting generalized parton distributions

Qiu

2022

J. High Energ. Phys.

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We show that exclusive production of a pair of high transverse momentum photons in pion-nucleon collisions can be systematically studied in QCD factorization approach if the photon’s transverse momentum qT with respect to the colliding pion is much greater than ΛQCD. We demonstrate that the leading power non-perturbative contributions to the scattering amplitudes of this exclusive process are process-independent and can be systematically factorized into universal pion’s distribution amplitudes (DAs) and nucleon’s generalized parton distributions (GPDs), which are convoluted with corresponding infrared safe and perturbatively calculable short-distance hard parts. The correction to this factorized expression is suppressed by powers of 1/qT. We demonstrate quantitatively that this new type of exclusive processes is not only complementary to existing processes for extracting GPDs, but also capable of providing an enhanced sensitivity to the dependence of both DAs and GPDs on the active parton’s momentum fraction x. We also introduce additional, but the same type of exclusive observables to enhance our capability to explore GPDs, in particular, their x-dependence.

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Recent progress and future prospects of hyperon nucleon scattering experiment

et al. 2022

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A new hyperon-proton scattering experiment, dubbed J-PARC E40, was performed to measure differential cross sections of the Σ+p, Σ−p elastic scatterings and the Σ−p → Λn scattering by identifying a lot of Σ particles in the momentum ranging from 0.4 to 0.8 GeV/c produced by the π±p → K+Σ± reactions. We successfully measured the differential cross sections of these three channels with a drastically improved accuracy with a fine angular step. These new data will become important experimental constraints to improve the theories of the two-body baryon-baryon interactions. Following this success, we proposed a new experiment to measure the differential cross sections and spin observables by using a highly polarized Λ beam for providing quantitative information on the ΛN interaction. The results of three Σp channels and future prospects of the Λp scattering experiment are described.

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Extension of the J-PARC Hadron Experimental Facility: Third White Paper

Cited by 19 publications

References 0 publications

New Physics Searches at Kaon and Hyperon Factories

New Physics Searches at Kaon and Hyperon Factories

Exclusive production of a pair of high transverse momentum photons in pion-nucleon collisions for extracting generalized parton distributions

Recent progress and future prospects of hyperon nucleon scattering experiment

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