Response to the $^7_Λ$He interpretation of MAMI's recent determination of $B_Λ(^3_Λ$H)
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arXiv
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| Auteurs principaux: | , , , , , , , |
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| Format: | Preprint |
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2026
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| _version_ | 1866913076677181440 |
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| author | Kino, Ryoko Achenbach, Patrick Klag, Pascal Nagao, Sho Nakamura, Satoshi N. Nishi, Kotaro Pochodzalla, Josef Shao, Tianhao |
| author_facet | Kino, Ryoko Achenbach, Patrick Klag, Pascal Nagao, Sho Nakamura, Satoshi N. Nishi, Kotaro Pochodzalla, Josef Shao, Tianhao |
| contents | We respond to the recent suggestion by A. Gal [arXiv:2604.18259] that the sharp pion-momentum peak at $p_{π^-} \approx 113.8$~MeV/$c$ observed in our $^7\mathrm{Li}(e,e^\prime K^+)$ electroproduction experiment at MAMI [Phys. Rev. Lett. 136, 152301 (2026)] originates from $^7_Λ\mathrm{He}$ weak decay rather than from $^3_Λ\mathrm{H} \to π^- + {}^3\mathrm{He}$ as we reported. We present quantitative arguments against this interpretation and conclude that the $^3_Λ\mathrm{H}$ assignment remains the most well-supported interpretation of the data. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2604_27748 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Response to the $^7_Λ$He interpretation of MAMI's recent determination of $B_Λ(^3_Λ$H) Kino, Ryoko Achenbach, Patrick Klag, Pascal Nagao, Sho Nakamura, Satoshi N. Nishi, Kotaro Pochodzalla, Josef Shao, Tianhao Nuclear Experiment We respond to the recent suggestion by A. Gal [arXiv:2604.18259] that the sharp pion-momentum peak at $p_{π^-} \approx 113.8$~MeV/$c$ observed in our $^7\mathrm{Li}(e,e^\prime K^+)$ electroproduction experiment at MAMI [Phys. Rev. Lett. 136, 152301 (2026)] originates from $^7_Λ\mathrm{He}$ weak decay rather than from $^3_Λ\mathrm{H} \to π^- + {}^3\mathrm{He}$ as we reported. We present quantitative arguments against this interpretation and conclude that the $^3_Λ\mathrm{H}$ assignment remains the most well-supported interpretation of the data. |
| title | Response to the $^7_Λ$He interpretation of MAMI's recent determination of $B_Λ(^3_Λ$H) |
| topic | Nuclear Experiment |
| url | https://arxiv.org/abs/2604.27748 |