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相关论文: Cosmic multi-muon bundles measured at DELPHI

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Using a sample of 38.5 million underground muons collected by the MACRO detector we have performed an all-sky search for pointlike sources producing excesses of muons above the expected background. The d.c. muon flux upper limit at the…

高能物理 - 实验 · 物理学 2019-08-14 C. Satriano

A recent publication based on ALEPH $\mathrm{e}^+\mathrm{e}^-$ data taken near the Z resonance reports an excess, near 30 GeV, in the di-muon mass spectrum for events containing b quarks. In this paper we measure the di-muon mass spectrum…

高能物理 - 实验 · 物理学 2019-05-06 Thomas Hebbeker , Stefan Roth

We report on a study of dimuon events produced in $p\bar{p}$ collisions at $\sqrt{s} = 1.96$ TeV, using 0.9fb$^{-1}$ of data recorded by the D0 experiment during 2008. Using information from the inner-layer silicon tracking detector, we…

高能物理 - 实验 · 物理学 2019-08-14 Mark Williams

The ATLAS detector is intended to verify the standard model and to search for new physics at the Large Hadron Collider (LHC, CERN). In addition to this primary goal, it also allows detection of muons of cosmic rays. On the other hand,…

高能物理 - 实验 · 物理学 2008-11-19 S. N. Karpov , Z. M. Karpova , V. A. Bednyakov

The photon radiation in the initial state lowers the energy available for the e$^+$e$^-$ collisions; this effect is particularly important at LEP2 energies (above the mass of the Z boson). Being aligned to the beam direction, such initial…

高能物理 - 实验 · 物理学 2009-10-31 P. Abreu , A. De Angelis , G. Della Ricca , D. Fassouliotis , A. Grefrath , N. Kjaer , R. Henriques , M. Mulders , M. Pimenta , L. Vitale

In 2012, the LHC is operated at sqrt(s) = 8 TeV in a mode leading up to 40 inelastic pp collisions per bunch crossing. The identification and reconstruction of muons produced in hard collisions is difficult in this challenging environment.…

高能物理 - 实验 · 物理学 2012-12-04 Tülin Varol

Cosmic muons are highly energetic and penetrative particles and these figures are used for imaging of large and dense objects such as spent nuclear fuels in casks and special nuclear materials in cargo. Cosmic muon intensity depends on the…

仪器与探测器 · 物理学 2021-04-28 Junghyun Bae , Stylianos Chatzidakis , Robert Bean

We establish a simple yet general parameterization of Higgs-muon interactions within the effective field theory frameworks, including both the Higgs Effective Field Theory (HEFT) and the Standard Model Effective Field Theory (SMEFT). We…

In extensive air shower experiments, the number of muons crossing a detector at a given position, as well as their arrival time, arrival direction, and energy, are determined by a more fundamental 3-dimensional distribution linked to the…

高能物理 - 唯象学 · 物理学 2023-03-15 Lorenzo Cazon , Rúben Conceição , Felix Riehn

The physics potential of an intense source of low-energy muons is studied. Such a source is a necessary stage towards building the neutrino factories and muon colliders which are being considered at present. The CERN Neutrino Factory could…

We explore the feasibility of estimating primary cosmic ray composition at high energies from the study of two parameters of Extensive Air Showers (EAS) at ground and underground level with Monte Carlo simulations using the new EPOS and…

An inclusive search for long-lived exotic particles decaying to a pair of muons is presented. The search uses data collected by the CMS experiment at the CERN LHC in proton-proton collisions at $\sqrt{s}$ = 13 TeV in 2016 and 2018 and…

高能物理 - 实验 · 物理学 2023-06-21 CMS Collaboration

The performance of the ATLAS muon trigger system is evaluated with proton-proton ($pp$) and heavy-ion (HI) collision data collected in Run 2 during 2015-2018 at the Large Hadron Collider. It is primarily evaluated using events containing a…

仪器与探测器 · 物理学 2021-01-12 ATLAS Collaboration

The energy spectrum of muons produced in air showers depends not only on the properties of the primary particle, but also on the atmosphere. This is because of the competition between decay and interaction of the parent mesons, which…

高能天体物理现象 · 物理学 2025-09-22 Stef Verpoest , Marisol Catalan Olais , Frank Schroeder

Numerical weather prediction requires initial estimates of the atmospheric state. Since the atmospheric density field is intricately woven into the atmosphere's governing equations, advancing atmospheric density estimation will improve…

大气与海洋物理 · 物理学 2025-09-08 William Luszczak , Man-Yau Chan

Cross sections for the production of two isolated muons up to high di-muon masses are measured in ep collisions at HERA with the H1 detector in a data sample corresponding to an integrated luminosity of 71 pb^-1 at a centre of mass energy…

高能物理 - 实验 · 物理学 2012-08-27 H1 Collaboration

This paper describes a new measurement of the flux ratio of positive and negative muons from cosmic-ray interactions in the atmosphere, using data collected by the CMS detector at ground level and in the underground experimental cavern. The…

高能物理 - 实验 · 物理学 2010-10-07 Gavin Hesketh

We explore the low energy neutrinos from stopped cosmic ray muons in the Earth. Based on the muon intensity at the sea level and the muon energy loss rate, the depth distributions of stopped muons in the rock and sea water can be derived.…

高能物理 - 唯象学 · 物理学 2019-05-01 Wan-Lei Guo

Using the facilities of the KASCADE Central Detector EAS muon arrival time distributions, observed with reference to the arrival time of the first locally registered muon, and their correlations with other EAS observables have been…

天体物理学 · 物理学 2007-05-23 T. Antoni et al.

Recent results obtained from leading cosmic ray experiments indicate that simulations using LHC-tuned hadronic interaction models underestimate the number of muons in extensive air showers compared to experimental data. This is the…