A Study of the Ultrahigh-energy Cosmic Ray Mass Composition with the MACRO and EAS-TOP Experiments

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ISBN 13 :
Total Pages : 374 pages
Book Rating : 4.:/5 (437 download)

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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:

A Study of the Ultrahigh-energy Cosmic Ray Mass Composition with the MACRO and EAS-TOP Experiments [microform]

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Publisher : Ann Arbor, Mich. : University Microfilms International
ISBN 13 :
Total Pages : 374 pages
Book Rating : 4.:/5 (437 download)

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Book Synopsis A Study of the Ultrahigh-energy Cosmic Ray Mass Composition with the MACRO and EAS-TOP Experiments [microform] by : Coutu, Stéphane

Download or read book A Study of the Ultrahigh-energy Cosmic Ray Mass Composition with the MACRO and EAS-TOP Experiments [microform] written by Coutu, Stéphane and published by Ann Arbor, Mich. : University Microfilms International. This book was released on 1993 with total page 374 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Mass Composition Studies of Ultra High Energy Cosmic Rays Through the Measurement of the Muon Production Depths at the Pierre Auger Observatory

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ISBN 13 :
Total Pages : 143 pages
Book Rating : 4.:/5 (951 download)

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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.

Scientific and Technical Aerospace Reports

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Publisher :
ISBN 13 :
Total Pages : 880 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Scientific and Technical Aerospace Reports by :

Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1994 with total page 880 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.

Introduction To Ultrahigh Energy Cosmic Ray Physics

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Publisher : CRC Press
ISBN 13 : 0429979282
Total Pages : 165 pages
Book Rating : 4.4/5 (299 download)

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Book Synopsis Introduction To Ultrahigh Energy Cosmic Ray Physics by : Pierre Sokolsky

Download or read book Introduction To Ultrahigh Energy Cosmic Ray Physics written by Pierre Sokolsky and published by CRC Press. This book was released on 2018-03-08 with total page 165 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cosmic ray physics has recently attracted a great deal of attention from the high energy physics community because of the discovery of new sources and the advent of new techniques. The result of a series of lectures prepared for graduate students and postdoctoral researchers, this book is a general introduction to experimental techniques and results in the field of ultrahigh energy cosmic rays. It succinctly summarizes the rapidly developing field, and provides modern results that include data from newer detectors. Combining experiment and theory, the text explores the results of a single, easy-to-understand experiment to tie together various issues involved in the physics of ultrahigh energy cosmic rays.

Introduction To Ultrahigh Energy Cosmic Ray Physics

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Publisher : CRC Press
ISBN 13 : 0429621760
Total Pages : 175 pages
Book Rating : 4.4/5 (296 download)

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Book Synopsis Introduction To Ultrahigh Energy Cosmic Ray Physics by : Pierre Sokolsky

Download or read book Introduction To Ultrahigh Energy Cosmic Ray Physics written by Pierre Sokolsky and published by CRC Press. This book was released on 2020-10-26 with total page 175 pages. Available in PDF, EPUB and Kindle. Book excerpt: This revised edition provides an up-to-date summary of the field of ultra-high energy cosmic rays, dealing with their origin, propagation, and composition,. The authors reflect the enormous strides made since the first edition in the realm of experimental work, in particular the use of vastly improved, more sensitive and precise detectors. The level remains introductory and pedagogical, suitable for students and researchers interested in moving into this exciting field. Throughout the text, the authors focus on giving an introductory overview of the key physics issues, followed by a clear and concise description of experimental approaches and current results. Key Features: Updates the most coherent summary of the field available, with new text that provides the reader with clear historical context. Brand new discussion of contemporary space-based experiments and ideas for extending ground-based detectors. Completely new discussion of radio detection methods. Includes a new chapter on small to intermediate-scale anisotropy. Offers new sections on modern hadronic models and software packages to simulate showers.

Mass Composition Studies of Ultra High Energy Cosmic Rays Through the Measurement of the Muon Production Depths at the Pierre Auger Observatory

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ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (93 download)

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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.

A Study of Ultra-high Energy Cosmic Ray Composition and Hadronic Interactions with Data from the Pierre Auger Observatory

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Publisher :
ISBN 13 : 9781267071347
Total Pages : 162 pages
Book Rating : 4.0/5 (713 download)

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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.

Extensive Air Showers

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Publisher : World Scientific
ISBN 13 : 9789810228880
Total Pages : 372 pages
Book Rating : 4.2/5 (288 download)

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Book Synopsis Extensive Air Showers by : M. V. S. Rao

Download or read book Extensive Air Showers written by M. V. S. Rao and published by World Scientific. This book was released on 1998 with total page 372 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ultrahigh energy cosmic rays carry information about their sources and the intervening medium apart from providing a beam of particles for studying certain features of high energy interactions currently inaccessible at man-made accelerators. They can at present be studied only via the extensive air showers (EAS's) they generate while passing through the Earth's atmosphere, since their fluxes are too low for the experiments of limited capability flown in balloons and satellites. The EAS is generated by a series of interactions of the primary cosmic ray and its progeny with the atmospheric nuclei. The exponential nature of the atmosphere spreads the air showers laterally over several hundreds of meters, thus enabling ground-based arrays of relatively inexpensive detectors to record and study them.This book describes the EAS phenomenology, the detectors and techniques used, and the latest results on the energy spectrum and composition of the primaries of EAS's and the results on high energy interactions obtained from EAS studies. It also describes the new TeV and PeV gamma ray astronomy (which has been developing over the past decade) and the newly emerging neutrino astronomy, which are related to the origin of cosmic rays.This book serves as an introduction as well as a reference for researchers in the field.

High Energy Cosmic Rays

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Publisher : Springer Science & Business Media
ISBN 13 : 3540851488
Total Pages : 334 pages
Book Rating : 4.5/5 (48 download)

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Book Synopsis High Energy Cosmic Rays by : Todor Stanev

Download or read book High Energy Cosmic Rays written by Todor Stanev and published by Springer Science & Business Media. This book was released on 2010-03-10 with total page 334 pages. Available in PDF, EPUB and Kindle. Book excerpt: Offers an accessible text and reference (a cosmic-ray manual) for graduate students entering the field and high-energy astrophysicists will find this an accessible cosmic-ray manual Easy to read for the general astronomer, the first part describes the standard model of cosmic rays based on our understanding of modern particle physics. Presents the acceleration scenario in some detail in supernovae explosions as well as in the passage of cosmic rays through the Galaxy. Compares experimental data in the atmosphere as well as underground are compared with theoretical models

Mass Composition of Ultra-high Energy Cosmic Rays

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Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (954 download)

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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:

Physics and Astrophysics of Ultra High Energy Cosmic Rays

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Publisher : Springer Science & Business Media
ISBN 13 : 3540428992
Total Pages : 336 pages
Book Rating : 4.5/5 (44 download)

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Book Synopsis Physics and Astrophysics of Ultra High Energy Cosmic Rays by : M. Lemoine

Download or read book Physics and Astrophysics of Ultra High Energy Cosmic Rays written by M. Lemoine and published by Springer Science & Business Media. This book was released on 2001-12-14 with total page 336 pages. Available in PDF, EPUB and Kindle. Book excerpt: The International School on Physics and Astrophysics of Ultra High Energy Cosmic Rays (UHECR2000) was held at the Observatoire de Paris–Meudon on June 26-29, 2000. This was the ?rst international school speci?cally dedicated to ultra high energy cosmic rays. Its aim was to familiarize with and attract students, physicists and astronomers into this quickly developing newresearch ?eld. The mysterious and currently unknown origin of the most energetic par- cles observed in Nature has triggered in recent years theoretical speculations ranging from electromagnetic acceleration to as yet undiscovered physics - yond the Standard Model. It has also lead to the development of several new detection concepts and experimental projects, some of which are currently - der construction. By its nature, the ?eld of ultra high energy cosmic rays is therefore highly interdisciplinary and borrows from astrophysics and cosmology, via particle physics, to experimental physics and observational astronomy. One main aspect of the school was to emphasize and take advantage of this interd- ciplinarity. The lectures were grouped into subtopics and are reproduced in this volume in the following order: After a general introductory lecture on cosmic rays follow two contributions on experimental detection techniques, followed by three lectures on acceleration in astrophysical objects. The next four contri- tions cover all major aspects of propagation and interactions of ultra high energy radiation, including speculative issues such as newinteractions.

EPS - High Energy Physics '89

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Publisher : Elsevier
ISBN 13 : 1483257290
Total Pages : 729 pages
Book Rating : 4.4/5 (832 download)

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Book Synopsis EPS - High Energy Physics '89 by : R. Fernandez Alvarez-Estrada

Download or read book EPS - High Energy Physics '89 written by R. Fernandez Alvarez-Estrada and published by Elsevier. This book was released on 2016-06-03 with total page 729 pages. Available in PDF, EPUB and Kindle. Book excerpt: EPS - High Energy Physics '89 presents the proceeding of the International Europhysics Conference on High Energy physics, held in Madrid, Spain, on September 6–13, 1989. This book outlines several topics on the interface between cosmology/astrophysics and particle physics. Organized into two parts encompassing 181 chapters, this compilation of papers begins with an overview of the implications of the cosmic light element abundances. This text then examines the various aspects of lattice field theory. Other chapters consider the theoretical evidence of a fundamental length in string theory and outline the main features of the higher order corrections to the heavy quark inclusive cross section. This book discusses as well the theory of heavy quark production in hadron collision. The final chapter deals with the idea of low-energy supersymmetry, which relates the scale of supersymmetry breaking to the origin and stability of the electroweak scale. This book is a valuable resource for astrophysicists, physicists, and scientists.

Ultra High Energy Cosmic Ray Composition

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Publisher :
ISBN 13 :
Total Pages : 282 pages
Book Rating : 4.:/5 (319 download)

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Book Synopsis Ultra High Energy Cosmic Ray Composition by : Nathaniel Peter Longley

Download or read book Ultra High Energy Cosmic Ray Composition written by Nathaniel Peter Longley and published by . This book was released on 1993 with total page 282 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Mass Composition of Ultra-high Energy Cosmic Rays at the Pierre Auger Observatory

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Publisher :
ISBN 13 :
Total Pages : 143 pages
Book Rating : 4.:/5 (11 download)

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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:

Measurement of the Muon Atmospheric Production Depth with the Water Cherenkov Detectors of the Pierre Auger Observatory

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Publisher :
ISBN 13 :
Total Pages : 162 pages
Book Rating : 4.:/5 (951 download)

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Book Synopsis Measurement of the Muon Atmospheric Production Depth with the Water Cherenkov Detectors of the Pierre Auger Observatory by :

Download or read book Measurement of the Muon Atmospheric Production Depth with the Water Cherenkov Detectors of the Pierre Auger Observatory written by and published by . This book was released on 2015 with total page 162 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ultra-high-energy cosmic rays (UHECR) are particles of uncertain origin and composition, with energies above 1 EeV (1018 eV or 0.16 J). The measured flux of UHECR is a steeply decreasing function of energy. The largest and most sensitive apparatus built to date to record and study cosmic ray Extensive Air Showers (EAS) is the Pierre Auger Observatory. The Pierre Auger Observatory has produced the largest and finest amount of data ever collected for UHECR. A broad physics program is being carried out covering all relevant topics of the field. Among them, one of the most interesting is the problem related to the estimation of the mass composition of cosmic rays in this energy range. Currently the best measurements of mass are those obtained by studying the longitudinal development of the electromagnetic part of the EAS with the Fluorescence Detector. However, the collected statistics is small, specially at energies above several tens of EeV. Although less precise, the volume of data gathered with the Surface Detector is nearly a factor ten larger than the fluorescence data. So new ways to study composition with data collected at the ground are under investigation. The subject of this thesis follows one of those new lines of research. Using preferentially the time information associated with the muons that reach the ground, we try to build observables related to the composition of the primaries that initiated the EAS. A simple phenomenological model relates the arrival times with the depths in the atmosphere where muons are produced. The experimental confirmation that the distributions of muon production depths (MPD) correlate with the mass of the primary particle has opened the way to a variety of studies, of which this thesis is a continuation, with the aim of enlarging and improving its range of applicability. We revisit the phenomenological model which is at the root of the analysis and discuss a new way to improve some aspects of the model. We carry out a thorough revision of the original analysis with the aim of understanding the different contributions to the total bias and resolution when building MPDs on an event-by-event basis. We focus on an alternative way to build MPDs by considering average MPDs for ensembles of air-showers, with the aim of enlarging the range of applicability of this kind of analysis. Finally, we analyze how different improvements in the Surface Detector electronics and its internal configuration affect the resolution of the MPD. We conclude by summarizing the main results and discussing potential ways to improve MPD-based mass composition studies.

Measurement of the Mass Composition of the Highest Energy Cosmic Rays with the Pierre Auger Observatory

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Publisher :
ISBN 13 :
Total Pages : 216 pages
Book Rating : 4.:/5 (947 download)

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Book Synopsis Measurement of the Mass Composition of the Highest Energy Cosmic Rays with the Pierre Auger Observatory by : Alexander Edward Hervé

Download or read book Measurement of the Mass Composition of the Highest Energy Cosmic Rays with the Pierre Auger Observatory written by Alexander Edward Hervé and published by . This book was released on 2013 with total page 216 pages. Available in PDF, EPUB and Kindle. Book excerpt: The origin of ultra high energy cosmic rays is one of the big unsolved questions in Astrophysics today. Knowing the mass composition of these cosmic rays would help to determine information about both their propagation and acceleration. The Pierre Auger Observatory was built to gather more information and more statistics than any previous cosmic ray detector ever built. In this thesis, I will detail my method of extending the current Pierre Auger mass composition information by using surface array parameters as a proxy for the depth of shower maximum, an established mass indicator.