Detection of muon groups with multiplicity nμ &gt; 1500 at the Baksan underground scintillation telescope

Bakatanov, V. N.; Novoseltsev, Yu. F.; Novoseltseva, R. V.

doi:10.1016/s0927-6505(97)00042-x

Cited by 18 publications

(7 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…A special emphasis has been given to the study of high multiplicity events containing more than 100 reconstructed muons. Similar events have already been studied in the previous LEP experiments at CERN (in the so called CosmoLEP program) such as ALEPH Avati et al (2003), DELPHI Abdallah et al (2007) and L3 Achard et al (2004), and in the underground Baksan experiment Bakatanov et al (1997) (we do not mention here all experiments with smaller bundles of muons observed). Data obtained in all these studies are crucial in establishing the most probable composition of CR.…”

Section: Introductionmentioning

confidence: 68%

Muon Bundles as a Sign of Strangelets from the Universe

Kankiewicz

Rybczyński

Włodarczyk

et al. 2017

ApJ

View full text Add to dashboard Cite

Recently the CERN ALICE experiment, in its dedicated cosmic ray run, observed muon bundles of very high multiplicities, thereby confirming similar findings from the LEP era at CERN (in the CosmoLEP project). Originally it was argued that they apparently stem from the primary cosmic rays with a heavy masses. We propose an alternative possibility arguing that muonic bundles of highest multiplicity are produced by strangelets, hypothetical stable lumps of strange quark matter infiltrating our Universe. We also address the possibility of additionally deducing their directionality which could be of astrophysical interest. Significant evidence for anisotropy of arrival directions of the observed high multiplicity muonic bundles is found. Estimated directionality suggests their possible extragalactic provenance.

show abstract

Section: Introductionmentioning

confidence: 68%

Muon Bundles as a Sign of Strangelets from the Universe

Kankiewicz

Rybczyński

Włodarczyk

et al. 2017

ApJ

View full text Add to dashboard Cite

show abstract

“…As well, the results considered in present publication correspond to the lately found "muon puzzle" tendency of peculiarly high muon production by cosmic rays around and above the ∼10 PeV region of their energy spectrum. As known, this phenomenon, actively discussed in current literature, contradicts both to contemporary models of hadron interaction, and to modern views on the atomic composition of primary cosmic ray nuclei [6,33,34,35,36,37,38].…”

Section: Discussionmentioning

confidence: 88%

The rise of muon content in extensive air showers after the 3 PeV knee of the primary cosmic ray spectrum according to data of the Tien Shan mountain installation

Shepetov,

Shaulov,

Likiy

et al. 2021

Preprint

View full text Add to dashboard Cite

We put together the experimental results on muon component of extensive air showers (EAS) which were gained with various techniques at the detector complex of the Tien Shan mountain station. According to this comparison, the problem of the EAS muon content in the range of primary cosmic ray energies (1 − 100) PeV seems to be more complicated than it was usually supposed. Generally, from the models of nuclear interaction it follows that the EAS which have produced gamma-hadron families in the Tien Shan X-ray emulsion chamber did preferably originate from interaction of the light cosmic ray nuclei, such that their muon abundance must be ∼1.5 times below an average calculated over all showers. In contrary, the experimental muon counts in the EAS with families demonstrate a (1.5 − 2)-fold excess above the average, and this difference starts to be observable in the showers with the energy above the 3 PeV knee of the primary cosmic ray spectrum. Later on, the rise of muon production in EAS after the knee was confirmed at Tien Shan by another experiment on detection of the neutrons stemmed from interaction of cosmic ray muons. Thus, the results obtained by the two completely different methods do mutually agree with each other but contradict to the common models of hadron interaction.

show abstract

“…Data of СAPRICE, BESS-TEV, L3+C, and CosmoALEPH experiments were borrowed from [9][10][11][12], and data of 1985-1993 were borrowed from [16]. Indirect data, that is, results of underground measurements recalculated to sea level are presented by the MACRO [18] (hatched area), LVD [19], Frejus [20], Baksan [21], Artyomovsk (ASD) [22], and MGU experiments [23]. It can be seen that the results calculated with parameterizations of the EKSh and GH primary spectra describe well new measurements with the L3+C, CosmoALEPH, BESS-TEV, and СAPRICE facilities.…”

Section: Calculation Resultsmentioning

confidence: 99%

Uncertanties of atmospheric high-energy muon fluxes and spectrum of primary cosmic rays

2007

View full text Add to dashboard Cite

537.591New results of calculations of nucleon, π-and K-meson, and muon fluxes generated during high energy cosmic ray interactions with the Earth's atmosphere are presented. The calculations are based on the method of solving the nuclear cascade equations with allowance for non-scaling behavior of inclusive hadron production cross sections, increase of cross sections of inelastic hadron-nucleus collisions with energy, and non-power-law character of primary spectrum. The hadron and muon fluxes are calculated at different atmospheric altitude levels for several spectral models and compositions of primary cosmic rays. Results of calculations are compared with recent measurements using the L3+Cosmic and CosmoALEPH facilities.

show abstract

Detection of muon groups with multiplicity nμ > 1500 at the Baksan underground scintillation telescope

Cited by 18 publications

References 0 publications

Muon Bundles as a Sign of Strangelets from the Universe

Muon Bundles as a Sign of Strangelets from the Universe

The rise of muon content in extensive air showers after the 3 PeV knee of the primary cosmic ray spectrum according to data of the Tien Shan mountain installation

Uncertanties of atmospheric high-energy muon fluxes and spectrum of primary cosmic rays

Contact Info

Product

Resources

About