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ATLAS Experiment
ATLAS is the largest general-purpose particle detector experiment at the Large Hadron Collider (LHC), a particle accelerator at CERN (the European Organization for Nuclear Research) in Switzerland. The experiment is designed to take advantage of the unprecedented energy available at the LHC and observe phenomena that involve highly massive particles which were not observable using earlier lower-energy accelerators. ATLAS was one of the two LHC experiments involved in the discovery of the Higgs boson in July 2012. It was also designed to search for evidence of theories of particle physics beyond the Standard Model. The experiment is a collaboration involving 6,003 members, out of which 3,822 are physicists (last update: June 26, 2022) from 243 institutions in 40 countries. History Particle accelerator growth The first cyclotron, an early type of particle accelerator, was built by Ernest O. Lawrence in 1931, with a radius of just a few centimetres and a particle energy of 1 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Journal Of Instrumentation
The ''Journal of Instrumentation'' is an online Peer review, peer-reviewed scientific journal. It is published by IOP Publishing on behalf of the International School for Advanced Studies. The journal covers concept and instrumentation in topic areas related to, and including Accelerator physics, detector and accelerator science, including related theory, numerical simulation, simulations, computer modelling, modelling, and particle accelerator, experimental methods. Abstracting and indexing The journal is abstracted and indexed in: * Scopus * Inspec * Chemical Abstracts Service * INIS Atomindex * NASA Astrophysics Data System * Science Citation Index * Materials Science Citation Index According to the ''Journal Citation Reports'', the journal has a 2023 impact factor of 1.3. Notable articles The journal publishes the complete scientific documentation of the CERN Large Hadron Collider machine and particle detector, detectors. These papers are published as Open access (publish ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mass
Mass is an Intrinsic and extrinsic properties, intrinsic property of a physical body, body. It was traditionally believed to be related to the physical quantity, quantity of matter in a body, until the discovery of the atom and particle physics. It was found that different atoms and different elementary particle, elementary particles, theoretically with the same amount of matter, have nonetheless different masses. Mass in modern physics has multiple Mass in special relativity, definitions which are conceptually distinct, but physically equivalent. Mass can be experimentally defined as a measure (mathematics), measure of the body's inertia, meaning the resistance to acceleration (change of velocity) when a net force is applied. The object's mass also determines the Force, strength of its gravitational attraction to other bodies. The SI base unit of mass is the kilogram (kg). In physics, mass is Mass versus weight, not the same as weight, even though mass is often determined by ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Guillaume Unal
Guillaume may refer to: People * Guillaume (given name), the French equivalent of William * Guillaume (surname), the French equivalent of Williams Places * Guillaume (crater), Moon, Earth-Moon System, Solar System * Guillaumes, Vence, Nice, Alpes-Maritimes, Provence-Alpes-Côte d'Azur, France; a commune Other uses * Saint-Guillaume (other) See also * ''Chanson de Guillaume'', an 11th or 12th century poem * Guillaume affair The Guillaume affair () was an espionage scandal in Germany during the Cold War. The scandal revolved around the exposure of an East German spy within the West German government and had far-reaching political repercussions in Germany, the mo ..., a Cold War espionage scandal that led to the resignation of West German Chancellor Willi Brandt * * William (other) () {{disambig ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anna Sfyrla
Anna may refer to: People Surname and given name * Anna (name) Mononym * Anna the Prophetess, in the Gospel of Luke * Anna of East Anglia, King (died c.654) * Anna (wife of Artabasdos) (fl. 715–773) * Anna (daughter of Boris I) (9th–10th century) * Anna (Anisia) (fl. 1218 to 1221) * Anna of Poland, Countess of Celje (1366–1425) * Anna of Cilli (1386–1416) * Anna, Grand Duchess of Lithuania (died 1418) * Anne of Austria, Landgravine of Thuringia (1432–1462) * Anna of Nassau-Dillenburg (died 1514) * Anna, Duchess of Prussia (1576–1625) * Anna of Russia (1693–1740) * Anna, Lady Miller (1741–1781) * Anna Russell, Duchess of Bedford (1783–1857) * Anna, Lady Barlow (1873–1965) * Anna (feral child) (1932–1942) * Anna (rapper) (born 2003) * Anna (singer) (born 1987) * C. N. Annadurai (1909–1969), Indian politician, known as Anna (elder brother) * Sunil Shetty (born 1961), Indian actor, known by his nickname Anna Places Australia * Hundred of Anna, a cadastral d ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stephane Willocq
Stéphane Willocq is an American physicist. He is a professor of physics at the University of Massachusetts Amherst and is involved in the upgrade of the muon trigger with MDT chambers for the high luminosity Large Hadron Collider. Early life and education Willocq completed his bachelor's degree in physics degree from the Université libre de Bruxelles before traveling to the United States to enroll at Tufts University. He had originally intended to remain in Brussels but funding difficulties forced him to spend a year working on his neutrino experiment as a visiting scientist at Fermilab. Career Upon joining the faculty at the University of Massachusetts Amherst, Willocq began working on different aspects of the ATLAS experiment full time since 2004. As an associate professor, Willocq served as the software coordinator and a member of the steering group for the ATLAS Muon Spectrometer. In 2009, he collaborated with colleagues to run experiments to collect data on fundamental atom ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Andreas Hoecker
Andreas () is a name derived from the Greek noun ἀνήρ ''anēr'', with genitive ἀνδρός ''andros'', which means "man". See the article on Andrew for more information. The Scandinavian name is earliest attested as antreos in a runestone from the 12th century. The name Andrea may be used as a feminine form, but it is also the main masculine form in Italy and the canton of Ticino in Switzerland. Given name Andreas is a common name, and this is not a comprehensive list of articles on people named Andreas. See instead . Surname * Alfred T. Andreas (1939–1900), American publisher and historian * Casper Andreas (born 1972), American actor and film director * Dwayne Andreas (1918–2016), American businessman * Harry Andreas (1879–1955), Australian businessman and company director * Lisa Andreas (born 1987), English singer Places *Andreas, Isle of Man, a village and parish in the Isle of Man See also * San Andreas (other) References * – Dictionary of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Femtobarn
A barn (symbol: b) is a metric unit of area equal to (100 fm2). This is equivalent to a square that is (10 fm) each side, or a circle of diameter approximately (11.28 fm). Originally used in nuclear physics for expressing the cross sectional area of nuclei and nuclear reactions, today it is also used in all fields of high-energy physics to express the cross sections of any scattering process, and is best understood as a measure of the probability of interaction between small particles. A barn is approximately the cross-sectional area of a uranium nucleus. The barn is also the unit of area used in nuclear quadrupole resonance and nuclear magnetic resonance to quantify the interaction of a nucleus with an electric field gradient. While the barn never was an SI unit, the SI standards body acknowledged it in the 8th SI Brochure (superseded in 2019) due to its use in particle physics. Etymology During Manhattan Project research on the atomic bomb during Wo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Luminosity (scattering Theory)
In scattering theory and accelerator physics, luminosity (''L'') is the ratio of the number of events detected (''dN'') in a certain period of time (''dt'') to the cross-section (''σ''): : L = \frac\frac. It has the dimensions of events on time on area, and is usually expressed in the cgs units of cm−2· s−1 or the non-SI units of b−1·s−1. In practice, ''L'' is dependent on the particle beam parameters, such as beam width and particle flow rate, as well as the target properties, such as target size and density. A related quantity is integrated luminosity (''L''int), which is the integral of the luminosity with respect to time: : L_\mathrm = \int L \ dt. The luminosity and integrated luminosity are useful values to characterize the performance of a particle accelerator. In particular, all collider experiments aim to maximize their integrated luminosities, as the higher the integrated luminosity, the more data is available to analyze. Examples of collider lum ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Center Of Mass
In physics, the center of mass of a distribution of mass in space (sometimes referred to as the barycenter or balance point) is the unique point at any given time where the weight function, weighted relative position (vector), position of the distributed mass sums to zero. For a rigid body containing its center of mass, this is the point to which a force may be applied to cause a linear acceleration without an angular acceleration. Calculations in mechanics are often simplified when formulated with respect to the center of mass. It is a hypothetical point where the entire mass of an object may be assumed to be concentrated to visualise its motion. In other words, the center of mass is the particle equivalent of a given object for application of Newton's laws of motion. In the case of a single rigid body, the center of mass is fixed in relation to the body, and if the body has uniform density, it will be located at the centroid. The center of mass may be located outside the Phys ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Proton
A proton is a stable subatomic particle, symbol , Hydron (chemistry), H+, or 1H+ with a positive electric charge of +1 ''e'' (elementary charge). Its mass is slightly less than the mass of a neutron and approximately times the mass of an electron (the proton-to-electron mass ratio). Protons and neutrons, each with a mass of approximately one Dalton (unit), dalton, are jointly referred to as ''nucleons'' (particles present in atomic nuclei). One or more protons are present in the Atomic nucleus, nucleus of every atom. They provide the attractive electrostatic central force which binds the atomic electrons. The number of protons in the nucleus is the defining property of an element, and is referred to as the atomic number (represented by the symbol ''Z''). Since each chemical element, element is identified by the number of protons in its nucleus, each element has its own atomic number, which determines the number of atomic electrons and consequently the chemical characteristi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Laboratories
A laboratory (; ; colloquially lab) is a facility that provides controlled conditions in which science, scientific or technological research, experiments, and measurement may be performed. Laboratories are found in a variety of settings such as schools, universities, privately owned research institutions, corporate research and testing facilities, government regulatory and forensic investigation centers, physicians' offices, clinics, hospitals, regional and national referral centers, and even occasionally personal residences. Overview The organisation and contents of laboratories are determined by the differing requirements of the specialists working within. A physics laboratory might contain a particle accelerator or vacuum chamber, while a metallurgy laboratory could have apparatus for Casting (metalworking), casting or refining metals or for testing their strength of materials, strength. A chemist or biologist might use a wet laboratory, while a psychology, psychologist's labo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Universities
A university () is an educational institution, institution of tertiary education and research which awards academic degrees in several Discipline (academia), academic disciplines. ''University'' is derived from the Latin phrase , which roughly means "community of teachers and scholars". Universities typically offer both undergraduate education, undergraduate and postgraduate education, postgraduate programs. The first universities in Europe were established by Catholic Church, Catholic monks. The University of Bologna (), Italy, which was founded in 1088, is the first university in the sense of: *being a high degree-awarding institute. *using the word (which was coined at its foundation). *having independence from the ecclesiastic schools and issuing secular as well as non-secular degrees (with teaching conducted by both clergy and non-clergy): grammar, rhetoric, logic, theology, canon law and notarial law.Hunt Janin: "The university in medieval life, 1179–1499", McFarland, 2 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
