Study of the possibility of solving cosmological lithium problem in an accelerator experiment

Bystritsky, V. M.; Варлачев, В. А.; Дудкин, Г. Н.; Krylov, A. R.; Gaži, Š.; Guran, J.; Nechaev, B. A.; Padalko, V. N.; Sadovsky, A.; Tuleushev, Yu. Zh.; Filipowicz, M.; Philippov, A. V.

doi:10.1134/s1063778817010057

Cited by 1 publication

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References 23 publications

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“…One obvious place to look is in the nuclear data [10], but the relevant transition rates are thought to have now all been measured, with by 2015 a status update stating "a 'nuclear option' to the lithium problem is essentially excluded" [11][12][13]. Continued measurement and modelling has agreed [14][15][16][17] and ever-more-inventive channels are being studied by nuclear physicists and discarded as inconsequential [18][19][20][21][22]. In similar fashion, any uncertainties present in the relevant SM and ΛCDM parameters in the mid-eighties have long since been ironed out by fantastic precision experimental programs.…”

Section: The Lithium Problemmentioning

confidence: 99%

A Cosmological Lithium Solution from Discrete Gauged Baryon Minus Lepton Number

Koren¹

2022

Preprint

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We propose the infrared gauge symmetry of our sector includes an unbroken discrete gauged subgroup of baryon minus lepton number of order 2 × 3 colors × 3 generations. We UV complete this at a scale Λ as the familiar U (1) B−NcL Abelian Higgs theory, and the early universe phase transition forms cosmic strings which are charged under an emergent higher-form generalized symmetry. These topological defects catalyze interactions which turn 3 baryons into 3 leptons at strong scale rates in an analogue of the Callan-Rubakov effect.The cosmological lithium problem-that the observed primordial abundance is lower than theoretical expectations by a factor of a few-is perhaps the most statistically significant anomaly of SM + ΛCDM, and has resisted decades of attempts by cosmologists, nuclear physicists, and astronomers alike to root out systematics. We write down a model in which B − N c L strings superconduct bosonic global baryon plus lepton number currents and catalyze solely 3p + → 3e + . We suggest that such cosmic strings have disintegrated O(1) of the lithium nuclei formed during Big Bang Nucleosynthesis and estimate the rate, with our benchmark model finding Λ ∼ 10 8 GeV gives the right number density of strings. Figure 0: Photo of a commissioned abstract artist's impression in acrylic on canvas by Bailey Lingen, a Chicago-based artist and trans rights activist who produces music under the name LiTHiUM THiEF.

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Section: The Lithium Problemmentioning

confidence: 99%

A Cosmological Lithium Solution from Discrete Gauged Baryon Minus Lepton Number

Koren¹

2022

Preprint

View full text Add to dashboard Cite

show abstract

Study of the possibility of solving cosmological lithium problem in an accelerator experiment

Cited by 1 publication

References 23 publications

A Cosmological Lithium Solution from Discrete Gauged Baryon Minus Lepton Number

A Cosmological Lithium Solution from Discrete Gauged Baryon Minus Lepton Number

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