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Muon Arrival Time Distributions And Its Relationschip To The Mass Composition Of Ultra High Energy Cosmic Rays
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Book Synopsis Muon Arrival Time Distributions and Its Relationschip to the Mass Composition of Ultra High Energy Cosmic Rays by : Diego García Gámez
Download or read book Muon Arrival Time Distributions and Its Relationschip to the Mass Composition of Ultra High Energy Cosmic Rays written by Diego García Gámez and published by . This book was released on 2011 with total page 125 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Mass Composition Studies of Ultra High Energy Cosmic Rays Through the Measurement of the Muon Production Depths at the Pierre Auger Observatory by : Laura Collica
Download or read book Mass Composition Studies of Ultra High Energy Cosmic Rays Through the Measurement of the Muon Production Depths at the Pierre Auger Observatory written by Laura Collica and published by . This book was released on 2014 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Pierre Auger Observatory studies Ultra High Energy Cosmic Rays (UHECRs) physics. The flux of UHECRs is very low (less than 1 particle/km2-year) and their properties must be inferred from the measurements of the secondary particles that the cosmic ray primary produces in the atmosphere. These particles cascades are called Extensive Air Showers (EAS) and can be studied at ground by deploying detectors covering large areas. The EAS physics is complex, and the properties of secondary particles depend strongly on the first interaction, which takes place at an energy beyond the ones reached at accelerators. As a consequence, the analysis of UHECRs is subject to large uncertainties and hence many of their properties, in particular their composition, are still unclear. Two complementary techniques are used at Auger to detect EAS initiated by UHECRs: a 3000 km2 surface detector (SD) array of water Cherenkov tanks which samples particles at ground level and fluorescence detectors (FD) which collect the ultraviolet light emitted by the de-excitation of nitrogen nuclei in the atmosphere, and can operate only in clear, moonless nights. The main goal of this thesis is the measurement of UHECR mass composition using data from the SD of the Pierre Auger Observatory. Measuring the cosmic ray composition at the highe-st energies is of fundamental importance for particle physics and astrophysics. Indeed, it allows to explore the hadronic interactions at ultra-high energies, and to discriminate between different scenarios of origin and propagation of cosmic rays.
Book Synopsis Arrival Time Distributions of Muons from Extensive Air Showersas Signature of the Mass Composition of Cosmic Rays by : A. A. Chilingarian
Download or read book Arrival Time Distributions of Muons from Extensive Air Showersas Signature of the Mass Composition of Cosmic Rays written by A. A. Chilingarian and published by . This book was released on 1994 with total page 43 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Mass Composition Studies of Ultra High Energy Cosmic Rays Through the Measurement of the Muon Production Depths at the Pierre Auger Observatory by :
Download or read book Mass Composition Studies of Ultra High Energy Cosmic Rays Through the Measurement of the Muon Production Depths at the Pierre Auger Observatory written by and published by . This book was released on 2014 with total page 143 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Pierre Auger Observatory (Auger) in Argentina studies Ultra High Energy Cosmic Rays (UHECRs) physics. The flux of cosmic rays at these energies (above 1018 eV) is very low (less than 100 particle/km2-year) and UHECR properties must be inferred from the measurements of the secondary particles that the cosmic ray primary produces in the atmosphere. These particles cascades are called Extensive Air Showers (EAS) and can be studied at ground by deploying detectors covering large areas. The EAS physics is complex, and the properties of secondary particles depend strongly on the first interaction, which takes place at an energy beyond the ones reached at accelerators. As a consequence, the analysis of UHECRs is subject to large uncertainties and hence many of their properties, in particular their composition, are still unclear. Two complementary techniques are used at Auger to detect EAS initiated by UHE- CRs: a 3000 km2 surface detector (SD) array of water Cherenkov tanks which samples particles at ground level and fluorescence detectors (FD) which collect the ultraviolet light emitted by the de-excitation of nitrogen nuclei in the atmosphere, and can operate only in clear, moonless nights. Auger is the largest cosmic rays detector ever built and it provides high-quality data together with unprecedented statistics. The main goal of this thesis is the measurement of UHECR mass composition using data from the SD of the Pierre Auger Observatory. Measuring the cosmic ray composition at the highest energies is of fundamental importance from the astrophysical point of view, since it could discriminate between different scenarios of origin and propagation of cosmic rays. Moreover, mass composition studies are of utmost importance for particle physics. As a matter of fact, knowing the composition helps in exploring the hadronic interactions at ultra-high energies, inaccessible to present accelerator experiments.
Book Synopsis Arrival time distributions of muons from extensive air showers as signature of the mass composition of cosmic rays by :
Download or read book Arrival time distributions of muons from extensive air showers as signature of the mass composition of cosmic rays written by and published by . This book was released on 1994 with total page 43 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Inferring the Mass Composition of Ultra-high-energy Cosmic Rays Through the Characterisation of the Muon Production Profile by : Bruno Zamorano García
Download or read book Inferring the Mass Composition of Ultra-high-energy Cosmic Rays Through the Characterisation of the Muon Production Profile written by Bruno Zamorano García and published by . This book was released on 2014 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Arrival Time Distributions of Muons from Extensive Air Showers as Signature of the Mass Composition of Cosmic Rays by : Heinrich Rebel
Download or read book Arrival Time Distributions of Muons from Extensive Air Showers as Signature of the Mass Composition of Cosmic Rays written by Heinrich Rebel and published by . This book was released on 2018 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Arrival Time Distributions of Muons from Extensive Air Showers as Signature of the Mass Composition of Cosmic Rays by : H. Rebel
Download or read book Arrival Time Distributions of Muons from Extensive Air Showers as Signature of the Mass Composition of Cosmic Rays written by H. Rebel and published by . This book was released on 1994 with total page 43 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Determining the Mass Composition of Ultra High Energy Cosmic Rays Using the Principle of Shower Universality and Data from the Pierre Auger Observatory by : Andrea Biscoveanu
Download or read book Determining the Mass Composition of Ultra High Energy Cosmic Rays Using the Principle of Shower Universality and Data from the Pierre Auger Observatory written by Andrea Biscoveanu and published by . This book was released on 2017 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The mass composition of cosmic rays is an important parameter for determining their origin. Using both fluorescence and surface detectors, The Pierre Auger Observatory measures the depth of shower maximum, Xmax, from which the mass of the primary particle can be inferred. The surface detector measurement, which is based on the principle of shower universality, increases the number of available statistics for Xmax by at least a factor of 10 since it is no longer limited by the low duty cycle of the fluorescence detector. We compare the energy and arrival directions determined using this new reconstruction to both the official surface and fluorescence detector reconstructions and present an event by event comparison of the \Xmax values calculated using both types of detectors for events with energies above 10^{18.8} eV. We use this new reconstruction method based on universality to conduct preliminary anisotropy studies discriminating by the mass of the primary particle.
Book Synopsis Mass Composition of Ultra-high Energy Cosmic Rays at the Pierre Auger Observatory by : Gašper Kukec Mezek
Download or read book Mass Composition of Ultra-high Energy Cosmic Rays at the Pierre Auger Observatory written by Gašper Kukec Mezek and published by . This book was released on 2019 with total page 143 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A METHOD FOR DETERMINING THE MASS COMPOSITION OF ULTRA-HIGH ENERGY COSMIC RAYS BY PREDICTING THE DEPTH OF FIRST INTERACTION OF INDIVIDUAL EXTENSIVE AIR SHOWERS by :
Download or read book A METHOD FOR DETERMINING THE MASS COMPOSITION OF ULTRA-HIGH ENERGY COSMIC RAYS BY PREDICTING THE DEPTH OF FIRST INTERACTION OF INDIVIDUAL EXTENSIVE AIR SHOWERS written by and published by . This book was released on 2015 with total page 290 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Evidence for a Mixed Mass Composition at the 'ankle' in the Cosmic-ray Spectrum by :
Download or read book Evidence for a Mixed Mass Composition at the 'ankle' in the Cosmic-ray Spectrum written by and published by . This book was released on 2016 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt: Here, we report a first measurement for ultra-high energy cosmic rays of the correlation between the depth of shower maximum and the signal in the water Cherenkov stations of air-showers registered simultaneously by the fluorescence and the surface detectors of the Pierre Auger Observatory. Such a correlation measurement is a unique feature of a hybrid air-shower observatory with sensitivity to both the electromagnetic and muonic components. It allows an accurate determination of the spread of primary masses in the cosmic-ray flux. Up till now, constraints on the spread of primary masses have been dominated by systematic uncertainties. The present correlation measurement is not affected by systematics in the measurement of the depth of shower maximum or the signal in the water Cherenkov stations. The analysis relies on general characteristics of air showers and is thus robust also with respect to uncertainties in hadronic event generators. The observed correlation in the energy range around the `ankle' at $\lg(E/{\rm eV})=18.5-19.0$ differs significantly from expectations for pure primary cosmic-ray compositions. A light composition made up of proton and helium only is equally inconsistent with observations. The data are explained well by a mixed composition including nuclei with mass $A> 4$. Scenarios such as the proton dip model, with almost pure compositions, are thus disfavoured as the sole explanation of the ultrahigh-energy cosmic-ray flux at Earth.
Book Synopsis A Study of Ultra-high Energy Cosmic Ray Composition and Hadronic Interactions with Data from the Pierre Auger Observatory by : Florin Ioniță
Download or read book A Study of Ultra-high Energy Cosmic Ray Composition and Hadronic Interactions with Data from the Pierre Auger Observatory written by Florin Ioniță and published by . This book was released on 2011 with total page 162 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ultra-high energy cosmic rays are particles of enormous energy -- greater than 1018 eV -- reaching Earth from still mysterious sources. In this thesis, we analyze data from the Pierre Auger Observatory, a giant cosmic ray detector located in Argentina, to derive information on the mass of ultra-high energy cosmic rays and on their hadronic interaction properties. The data show a change of cosmic ray mass composition as a function of energy. We perform a measurement of the proton-air inelastic cross section, yielding sinelp-air =501+24-23 stat+30 -35syst +30-32 composition mb, at an equivalent energy of 57 TeV in the center of mass of a proton-proton collision -- a range yet inaccessible to particle accelerators. The measured cross section is in good agreement with predictions from hadronic interaction models.
Book Synopsis A Study of the Ultrahigh-energy Cosmic Ray Mass Composition with the MACRO and EAS-TOP Experiments by : Stephane Coutu
Download or read book A Study of the Ultrahigh-energy Cosmic Ray Mass Composition with the MACRO and EAS-TOP Experiments written by Stephane Coutu and published by . This book was released on 1993 with total page 374 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Mass Composition of Ultra-high Energy Cosmic Rays by : Livingstone Ochilo
Download or read book Mass Composition of Ultra-high Energy Cosmic Rays written by Livingstone Ochilo and published by . This book was released on 2016 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Mass Sensitive Observables of Simulated Cosmic Ray Air Showers by : Benjamin S. Flaggs
Download or read book Mass Sensitive Observables of Simulated Cosmic Ray Air Showers written by Benjamin S. Flaggs and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Extensive cosmic ray research has been performed over the course of the last century, yet the origin of the highest energy cosmic rays remains unknown. One way progress is made towards determining the origin of these ultra-high energy charged particles is through precise measurements of their mass composition. However, the highest energy cosmic rays must be detected indirectly via cosmic ray air showers. Therefore the mass of the primary cosmic ray must be derived from information of air shower observables sensitive to the primary particle mass. Specifically, these mass sensitive observables include the depth of shower maximum, and parameters related to the relative size of the muonic component of the air shower. In this thesis, CORSIKA simulations of cosmic ray air showers are used to study the separation power between proton and iron primary cosmic rays, based on combined knowledge of various mass sensitive observables. Specifically, the energy and zenith dependence of observables are investigated in relation to their impact on the proton-iron separation power. For the IceCube Neutrino Observatory, the difference in separation power between high energy penetrating muons and low energy surface muons is investigated. Additionally, the effect of low energy surface muons on proton-iron separation power was studied for the Pierre Auger Observatory and compared to the low energy surface muon separation power obtained from IceCube.
Download or read book High Energy Physics Index written by and published by . This book was released on 1989 with total page 708 pages. Available in PDF, EPUB and Kindle. Book excerpt:
