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Path Integral Solutions to the Distributions of Statistical Mechanics [article]

Jose A. Magpantay, Cilicia Uzziel M. Perez
2016 arXiv   pre-print
Acknowledgments The work of Cilicia Perez was done while she was an MS student at the University of the Philippines, Diliman. [1] Kheruntsyan, K. V. and Petrosyan, K.  ...  Quezon City 1100, Philippines Cilicia Uzziel  ... 
arXiv:1608.06280v1 fatcat:e7qlwzd77jcftkgjfngvrh36jy

Solutions to the Classical Liouville Equation [article]

Jose A. Magpantay, Cilicia Uzziel M. Perez
2014 arXiv   pre-print
We present solutions to the classical Liouville equation for ergodic and completely integrable systems - systems that are known to attain equilibrium. Ergodic systems are known to thermal equilibrate with a Maxwell-Boltzmann distribution and we show a simple derivation of this distribution that also leads to a derivation of the distribution at any time t. For illustrative purposes, we apply the method to the problem of a one-dimensional gravitational gas even though its ergodicity is debatable.
more » ... For completely integrable systems, the Liouville equation in the original phase space is rather involved because of the group structure of the integral invariants, which hints of a gauge symmetry. We use Dirac's constrained formalism to show the change in the Liouville equation, which necessitates the introduction of gauge-fixing conditions. We then show that the solution of the Liouville equation is independent of the choice of gauge, which it must be because physical quantities are derived from the distribution. Instead, we derive the solution to the classical Liouville equation in the phase space where the dynamics involve ignorable coordinates, a technique that is akin to the use of the unitarity gauge in spontaneously broken gauge theories to expose the physical degrees of freedom. It turns out the distribution is time-independent and precisely given by the generalized Gibbs ensemble (GGE), which was solved by Jaynes using the method of constrained optimization. As an example, we apply the method to the problem of two particles in 3D interacting via a central potential.
arXiv:1311.4594v2 fatcat:oqihmjgbpbb5pds2yxf24btyja

Lorentz Dispersion Law from classical Hydrogen electron orbits in AC electric field via geometric algebra [article]

Uzziel Perez, Angeleene S. Ang, Quirino M. Sugon Jr., Daniel J. McNamara, Akimasa Yoshikawa
2015 arXiv   pre-print
We studied the orbit of an electron revolving around an infinitely massive nucleus of a large classical Hydrogen atom subject to an AC electric field oscillating perpendicular to the electron's circular orbit. Using perturbation theory in geometric algebra, we show that the equation of motion of the electron perpendicular to the unperturbed orbital plane satisfies a forced simple harmonic oscillator equation found in Lorentz dispersion law in Optics. We show that even though we did not
more » ... a damping term, the initial orbital position and velocity of the electron results to a solution whose absorbed energies are finite at the dominant resonant frequency ω=ω_0; the electron slowly increases its amplitude of oscillation until it becomes ionized. We computed the average power absorbed by the electron both at the perturbing frequency and at the electron's orbital frequency. We graphed the trace of the angular momentum vector at different frequencies. We showed that at different perturbing frequencies, the angular momentum vector traces epicyclical patterns.
arXiv:1507.04509v1 fatcat:jd4v5cwmgvatdlutkgayjjcso4

Page 21 of Hispanic Review Vol. 9, Issue 1 [page]

1941 Hispanic Review  
Bernardo Peres de Bargas [Pérez de Vargas], De rre metalica. En 102 30.969 . 158 r°. . Sentencgias de Platon. En latin. En vn rreal. 034 .  ...  Tarjum Jonatani (Jonathan, ben Uzziel, Targum], yn Ho- gean [Hosea], Joalen [Joel], Eremian [Jeremiah]. En dos rreales. 068 . Asolanos de Benbo [Bembo, Pietro]. En romance. En vn rri. 034 .  ... 

Paul E. Kahle and Federico Pérez Castro: The Origins of the Madrid School of Biblical Text Criticism

Emilia Fernández Tejero, Natalio Fernández Marcos
2008 Sefarad : Revista de Estudios Hebraicos y Sefardíes  
This volume did not include Pérez Castro and Cantera's joint paper, but a study entitled "The Edition of the Kitab al Khilaf of Mishael Ben Uzziel," written by F. Pérez Castro and M.  ...  Pérez CaStro and M. J. azCárraga, "The Edition of the Kitab al Khilaf of Mishael Ben Uzziel", in M. bLaCK und G. fohrer (eds.), In Memoriam Paul Kahle (Berlin 1968), 188-200, p. 189.  ... 
doi:10.3989/sefarad.2008.v68.i1.455 fatcat:x2cvdsrnunfwhczv4obl2zypqy

Some Ḥil•lûfîm Ben Asher/Ben Naftali in the Manuscript M1

M.ª Teresa Ortega Monasterio
2018 Sefarad : Revista de Estudios Hebraicos y Sefardíes  
PÉREZ CASTRO and M. J. de AZCÁRRAGA, The Edition of the Kitab al-Khilaf of Misael Ben Uzziel, in In Memoriam Paul Kahle (Berlin 1968).  ...  ì), the manuscript corrects the text to convert it into BA as specified in the Ml margin, but this is contrary to Ben Uzziel.  ... 
doi:10.3989/sefarad.1999.v59.i2.799 fatcat:p2jh2iznufexreexjre42lvo7u

Machine Learning in High Energy Physics Community White Paper

Kim Albertsson, Piero Altoe, Dustin Anderson, Michael Andrews, Juan Pedro Araque Espinosa, Adam Aurisano, Laurent Basara, Adrian Bevan, Wahid Bhimji, Daniele Bonacorsi, Paolo Calafiura, Mario Campanelli (+107 others)
2018 Journal of Physics, Conference Series  
Machine learning is an important applied research area in particle physics, beginning with applications to high-level physics analysis in the 1990s and 2000s, followed by an explosion of applications in particle and event identification and reconstruction in the 2010s. In this document we discuss promising future research and development areas in machine learning in particle physics with a roadmap for their implementation, software and hardware resource requirements, collaborative initiatives
more » ... th the data science community, academia and industry, and training the particle physics community in data science. The main objective of the document is to connect and motivate these areas of research and development with the physics drivers of the High-Luminosity Large Hadron Collider and future neutrino experiments and identify the resource needs for their implementation. Additionally we identify areas where collaboration with external communities will be of great benefit.
doi:10.1088/1742-6596/1085/2/022008 fatcat:tqhhxd3c4ngurdackxqwxy3dmi

Machine Learning in High Energy Physics Community White Paper [article]

Kim Albertsson, Piero Altoe, Dustin Anderson, John Anderson, Michael Andrews, Juan Pedro Araque Espinosa, Adam Aurisano, Laurent Basara, Adrian Bevan, Wahid Bhimji, Daniele Bonacorsi, Bjorn Burkle (+102 others)
2019 arXiv   pre-print
Machine learning has been applied to several problems in particle physics research, beginning with applications to high-level physics analysis in the 1990s and 2000s, followed by an explosion of applications in particle and event identification and reconstruction in the 2010s. In this document we discuss promising future research and development areas for machine learning in particle physics. We detail a roadmap for their implementation, software and hardware resource requirements,
more » ... initiatives with the data science community, academia and industry, and training the particle physics community in data science. The main objective of the document is to connect and motivate these areas of research and development with the physics drivers of the High-Luminosity Large Hadron Collider and future neutrino experiments and identify the resource needs for their implementation. Additionally we identify areas where collaboration with external communities will be of great benefit.
arXiv:1807.02876v3 fatcat:k2fjloakhjcd7lg7may5rtm6ya

TARGUMIM, AS TRADUÇÕES ARAMAICAS DO ANTIGO TESTAMENTO, E ALGUNS PARALELOS COM O NOVO TESTAMENTO

Aila Luzia Pinheiro De Andrade, Susie Helena Ribeiro
2020 Perspectiva Teológica  
O Targum dos Profetas ou Targum de Jonatas ben Uzziel (TgJn) abrange os livros de Josué a Reis e os Profetas Isaías, Jeremias e Ezequiel.  ...  Estudando outros targumim, Craig Evans e Martin McNanara também pesquisaram sua relação com o Novo Testamento (PÉREZ FERNÁNDEZ, 1981, p. 15 ).  ... 
doi:10.20911/21768757v52n1p55/2020 fatcat:p2j47zsyrrbthav5r6gnhytxyi

Códices Massoréticos: Aspectos Gerais

E.F. Francisco
2001 Caminhando  
TEICHER, 1950 /1951 é baseado na obra de Mishael ben Uzziel já mencionada anteriormente (cf. acima). Segundo Paul E.  ...  - nuscrito foram coletadas e cita- das por (heb. tôrâ, nə îîm, ûkhətû îm kətav-yād qā`ihîr, Bíblia Hebraica, Manuscrito do Cairo) ou Cairo Codex of the Bible, 1971, enquanto Federico Pérez  ... 
doi:10.15603/2176-3828/caminhando.v6n1p54-67 fatcat:2do6ibrt2zfuvdwuy22ryx6rda

Search for long-lived particles decaying in the CMS endcap muon detectors in proton-proton collisions at $\sqrt{s} = $ 13 TeV

Armen Tumasyan, Wolfgang Adam, Janik Walter Andrejkovic, Thomas Bergauer, Suman Chatterjee, Marko Dragicevic, Alberto Escalante Del Valle, Rudolf Fruehwirth, Manfred Jeitler, Natascha Krammer, Lukas Lechner, Dietrich Liko (+2354 others)
2021 Physical review letters 127(26)  
A search for long-lived particles (LLPs) produced in decays of standard model (SM) Higgs bosons is presented. The data sample consists of 137 fb$^{-1}$ of proton-proton collisions at $\sqrt{s} =$ 13 TeV, recorded at the LHC in 2016-2018. A novel technique is employed to reconstruct decays of LLPs in the endcap muon detectors. The search is sensitive to a broad range of LLP decay modes and to masses as low as a few GeV. No excess of events above the SM background is observed. The most stringent
more » ... imits to date on the branching fraction of the Higgs boson to LLPs subsequently decaying to quarks and $\tau^+\tau^-$ are found for proper decay lengths greater than 6, 20, and 40 m, for LLP masses of 7, 15, and 40 GeV, respectively.
doi:10.3204/pubdb-2022-00238 fatcat:cfvh4j2wxbce5lnd33tz4e6rde

Search for Long-Lived Particles Decaying in the CMS End Cap Muon Detectors in Proton-Proton Collisions at $\sqrt s$ =13 TeV

Armen Tumasyan, Wolfgang Adam, Janik Walter Andrejkovic, Thomas Bergauer, Suman Chatterjee, Marko Dragicevic, Alberto Escalante Del Valle, Rudolf Fruehwirth, Manfred Jeitler, Natascha Krammer, Lukas Lechner, Dietrich Liko (+2354 others)
2021 Physical review letters 127(26)  
A search for long-lived particles (LLPs) produced in decays of standard model (SM) Higgs bosons is presented. The data sample consists of 137 fb −1 of proton-proton collisions at ffiffi ffi s p ¼ 13 TeV, recorded at the LHC in 2016-2018. A novel technique is employed to reconstruct decays of LLPs in the end cap muon detectors. The search is sensitive to a broad range of LLP decay modes and to masses as low as a few GeV. No excess of events above the SM background is observed. The most stringent
more » ... limits to date on the branching fraction of the Higgs boson to LLPs subsequently decaying to quarks and τ þ τ − are found for proper decay lengths greater than 6, 20, and 40 m, for LLP masses of 7, 15, and 40 GeV, respectively.
doi:10.18154/rwth-2022-01524 fatcat:vy4sp662pnacvi5jigotju5tki

Measurement of the inclusive and differential Higgs boson production cross sections in the decay mode to a pair of $\tau$ leptons in pp collisions at $\sqrt{s} = $ 13 TeV

Armen Tumasyan, Wolfgang Adam, Janik Walter Andrejkovic, Thomas Bergauer, Suman Chatterjee, Marko Dragicevic, Alberto Escalante Del Valle, Rudolf Fruehwirth, Manfred Jeitler, Natascha Krammer, Lukas Lechner, Dietrich Liko (+2350 others)
2022 Physical review letters : PRL 128(8)  
leading order with the MLM jet matching and merging scheme [24] for the simulation of data taken in 2016 (2017 and 2018). It is also used to model the diboson production at NLO in (α S ), whereas POWHEG 2.0 and 1.0 are used for t t and single top quark production, respectively. Single top quark production in the t-channel and diboson events are normalized to their cross sections at NLO precision or higher [25, 26] . Drell-Yan events, as well as t t events and single top quark production in the
more » ... W channel, are normalized to their cross sections at NNLO precision [27, 28] . The generators are interfaced with PYTHIA8.212 [29] to model the parton showering and fragmentation, as well as the decay of the τ leptons. The PYTHIA tunes CUETP8M1 and CUETP8M4 [30] are used in simulation corresponding to the 2016 data-taking conditions, and the CP5 tune [31] is used for 2017 and 2018 simulations. The parton density function (PDF) set is NNPDF3.0 for 2016 simulations, and NNPDF 3.1 for 2017 and 2018 simulations [32] [33] [34] . Additional proton-proton interactions per bunch crossing, called pileup, are added to the simulations with the profile observed in data. Simulated events are processed through a GEANT4 [35] simulation of the CMS detector. The particle-flow (PF) algorithm [36] is used to reconstruct the events on the basis of information from the different CMS subdetectors. Muons are reconstructed from tracks and hits in the tracker and muon systems [37, 38] . Electrons are reconstructed from tracks in the tracking system and calorimeter deposits, and identified with a multivariate discriminant described in Ref. [39] . The relative isolation of electrons (muons) is calculated on the basis of the p T of tracks in a cone of ΔR ¼ ffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffi ffi ðΔηÞ 2 þ ðΔϕÞ 2 p < 0.3 (0.4) centered on the lepton track, corrected for charged and neutral pileup contributions; it is required to be less than 0.15. Jets are clustered from PF candidates using the anti-(k T ) FASTJET algorithm with distance parameter R of 0.4 [40, 41], requiring p T > 30 GeV and jηj < 4.7. Jet energy corrections are applied on an event-by-event basis [36, 42, 43]. In events collected in 2017, jets with p T < 50 GeV and 2.65 < jηj < 3.14 are discarded to eliminate spurious jets caused by detector noise. Hadronic jets originating from b quarks are tagged
doi:10.18154/rwth-2022-03903 fatcat:wimvbnpqb5gstcqo5aiyueyhpq

Search for long-lived particles produced in association with a Z boson in proton-proton collisions at $ \sqrt{s} $ = 13 TeV

Armen Tumasyan, Wolfgang Adam, Janik Walter Andrejkovic, Thomas Bergauer, Suman Chatterjee, Marko Dragicevic, Alberto Escalante Del Valle, Rudolf Fruehwirth, Manfred Jeitler, Natascha Krammer, Lukas Lechner, Dietrich Liko (+2360 others)
2022 Journal of high energy physics : JHEP 2022(3)  
A search for long-lived particles (LLPs) produced in association with a Z boson is presented. The study is performed using data from proton-proton collisions with a center-of-mass energy of 13 TeV recorded by the CMS experiment during 2016-2018, corresponding to an integrated luminosity of 117 fb −1 . The LLPs are assumed to decay to a pair of standard model quarks that are identified as displaced jets within the CMS tracker system. Triggers and selections based on Z boson decays to electron or
more » ... muon pairs improve the sensitivity to light LLPs (down to 15 GeV). This search provides sensitivity to beyond the standard model scenarios which predict LLPs produced in association with a Z boson. In particular, the results are interpreted in the context of exotic decays of the Higgs boson to a pair of scalar LLPs (H → SS). The Higgs boson decay branching fraction is constrained to values less than 6% for proper decay lengths of 10-100 mm and for LLP masses between 40 and 55 GeV. In the case of low-mass (≈ 15 GeV) scalar particles that subsequently decay to a pair of b quarks, the search is sensitive to branching fractions B(H → SS) < 20% for proper decay lengths of 10-50 mm. The use of associated production with a Z boson increases the sensitivity to low-mass LLPs of this analysis with respect to gluon fusion searches. In the case of 15 GeV scalar LLPs, the improvement corresponds to a factor of 2 at a proper decay length of 30 mm.
doi:10.18154/rwth-2022-04119 fatcat:lvuxj2rhvfbyjaaupgjw5cbbna

Observation of a New Excited Beauty Strange Baryon Decaying to$\Xi^-_\mathrm{b} \pi^+ \pi^-$

Albert M. Sirunyan, Armen Tumasyan, Wolfgang Adam, Janik Walter Andrejkovic, Thomas Bergauer, Suman Chatterjee, Marko Dragicevic, Alberto Escalante Del Valle, Rudolf Fruehwirth, Manfred Jeitler, Natascha Krammer, Lukas Lechner (+2354 others)
2021 Physical review letters 126(25)  
The Ξ − b π þ π − invariant mass spectrum is investigated with an event sample of proton-proton collisions at ffiffi ffi s p ¼ 13 TeV, collected by the CMS experiment at the LHC in 2016-2018 and corresponding to an integrated luminosity of 140 fb −1 . The ground state Ξ − b is reconstructed via its decays to J=ψΞ − and J=ψΛK MeV, where the last uncertainty reflects the precision of the Ξ − b baryon mass. The upper limit on the Ξ b ð6100Þ − natural width is determined to be 1.9 MeV at 95%
more » ... nce level. The low Ξ b ð6100Þ − signal yield observed in data does not allow a measurement of the quantum numbers of the new state. However, following analogies with the established excited Ξ c baryon states, the new Ξ b ð6100Þ − resonance and its decay sequence are consistent with the orbitally excited Ξ − b baryon, with spin and parity quantum numbers J P ¼ 3=2 − .
doi:10.18154/rwth-2021-10773 fatcat:jebivqmfpvgxbb7odn7phd5am4
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