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Saturday, August 1, 2020 | History

3 edition of Parameterized spectral distributions for meson production in proton-proton collisions found in the catalog.

Parameterized spectral distributions for meson production in proton-proton collisions

# Parameterized spectral distributions for meson production in proton-proton collisions

Published by NASA, National Technical Information Service [distributor in [Washington, DC], Springfield, VA .
Written in English

Subjects:
• Atomic collisions.,
• Atomic spectra.,
• Cross sections.,
• Distribution functions.,
• Galactic cosmic rays.,
• Kaon production.,
• Mesons.,
• Parameterization.,
• Pions.,
• Proton-proton reactions.,
• Spectral methods.,
• Transport theory.

• Edition Notes

The Physical Object ID Numbers Statement John P. Schneider and John W. Norbury, Francis A. Cucinotta. Series NASA technical memorandum -- 4675. Contributions Norbury, John W., Cucinotta, Frank., United States. National Aeronautics and Space Administration. Format Microform Pagination 1 v. Open Library OL15416721M

collisions is an important parameter in Monte Carlo (MC) models. For this reason, measurements of strange hadron production place constraints on these models. The abundances of strange particles relative to pions in heavy-ion collisions from top RHIC (Relativistic Heavy-Ion Collider) to LHC (Large Hadron Collider) energies do not show a significant. The lightest meson is the pion and is therefore the most important one from a radiation point of view. The next lightest meson is the kaon, and its interactions will be dealt with in future work. For the present, only pion interactions will be considered. Previous work (refs. 5Š8) evaluated pion production in proton-proton collisions. The.

spectral shape (centroid and width) of the φ meson. Since the mass of the φ meson is close to twice the kaon mass, a modiﬁcation in the φ mass centroid can lead to an observable imbalance in the branching ratios of the φ into kaon and di-lepton decay channels[2]. Consisting of s¯s pair, the φ production in heavy ion collisions is sensitive. Parameterization of Spectral Distributions for Pion and Kaon Production in Proton-Proton Collisions Astrophysical Journal Supplement Apr (Essentially the same as Connections:

Test of CP invariance in vector-boson fusion production of the Higgs boson in the H.   The ALICE Collaboration has studied the inclusive production of the charmonium state ψ(2S) in proton-lead (p-Pb) collisions at the nucleon-nucleon centre of mass energy $$\sqrt{s_{\mathrm{NN}}}$$ = TeV at the CERN LHC. The measurement was performed at forward (

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### Parameterized spectral distributions for meson production in proton-proton collisions Download PDF EPUB FB2

Parameterized Spectral Distributions for Meson Production in Proton-Proton Collisions Article (PDF Available) September with 10 Reads How we measure 'reads'. Get this from a library. Parameterized spectral distributions for meson production in proton-proton collisions.

[John P Schneider; John W Norbury; Francis A Cucinotta; United States. National Aeronautics and Space Administration.]. Parameterized Spectral Distributions for Meson Production in Proton-Proton Collisions John P. Schneider, John W.

Norbury, and Francis A. Cucinotta (NASA-TM) PARAMET_RIZEC SPECTRAL OISTRIBUTIONS FOR MESCN PRODUCTION IN PROTON-PROTON COLLISICNS (NASA. Langley Research Center) 20 p Hl N Unclas _3 June CiteSeerX - Document Details (Isaac Councill, Lee Giles, Pradeep Teregowda): Accurate semiempirical parameterizations of the energy-differential cross sections for charged pion and kaon production from proton-proton collisions are presented at energies relevant to cosmic rays.

The parameterizations, which depend on both the outgoing meson parallel momentum and the incident proton kinetic. Parameterized Spectral Distributions for Meson Production in Proton-Proton Collisions.

2 C 3 parameters from table 1, (GeV/c) -2 c speed of light c.m. center-of-mass frame d 3 s differential cross-section element, mb d 3 p differential momentum element, GeV/c E energy, GeV f continuous spectrum f(E, E) from equation(2) K kaon M = m A + m B.

Accurate semi-empirical parameterizations of the energy-differential cross sections for charged pion and kaon production from proton-proton collisions are presented at energies relevant to cosmic rays.

The parameterizations depend on the outgoing meson momentum and also the proton energy, and are able to be reduced to very simple analytical formulas suitable for cosmic-ray transport.

Aspects of φ-meson production in proton-proton collisions A. Sibirtsev1, J. Haidenbauer2 and U.-G. Meißner1,2 1 Helmholtz-Institut fu¨r Strahlen- und Kernphysik (Theorie), Universita¨t Bonn, NußalleeD Bonn, Germany 2 Institut fu¨r Kernphysik (Theorie), Forschungszentrum J¨ulich GmbH, D Ju¨lich, Germany.

The bottom panel of Fig. 3 shows ratios (32) σ a σ b / σ a b ≡ m σ pp → a + X × σ pp → b + X σ pp → a + b + X. From Eq. we see that in the absence of SPS, this ratio would be equal to σ eff, but if there is a contribution from SPS, the ratio will be below σ general, our predictions for the opposite-sign case match very well with the data, but tend to underestimate the.

The reaction p p → p p π 0 π 0 has been investigated at a beam energy of GeV using the WASA-at-COSY facility. The total cross section is found to be ( ± 21 systematic ± 58 normalization) order to study the production mechanism, differential kinematic distributions have.

• parametrise the quark and gluon distributions at Q 0, e.g. • solve DGLAP equations to obtain the pdfs at any x and scale Q>Q 0 ; fit data for parameters {A i,a i, α S} • approximate the exact solutions (e.g.

interpolation grids, expansions in polynomials etc) for ease of use. John W. Norbury's research works with 1, citations and 5, reads, including: Light ion double-differential cross section parameterization and results from the SHIELD transport code.

$π^0$ and $η$ meson production in proton-proton collisions at $\sqrt{s}=8$ TeV An invariant differential cross section measurement of inclusive $\pi^{0}$ and $\eta$ meson production at mid-rapidity in pp collisions at $\sqrt{s}=8$ TeV was carried out by the ALICE experiment at the LHC.

Transport calculations predict diﬀerent spectral slopes for K− and K+ mesons as a result of the diﬀerences in the eﬀective masses [12,27]. Figure 3 presents the ratio of the invariant production cross sections (K−/K+) as a function of the c.m.

kinetic energy in C+C collisions at AGeV. The European Physical Journal C (EPJ C) presents new and original research results in theoretical physics and experimental physics. Author(s): Schneider,J P; Norbury,J W; Cucinotta,F A; United States.

National Aeronautics and Space Administration. Langley Research Center. Abstract: The framework to compute the cross-sections for the production of particles with high mass and/or large transverse momentum in double (DPS), triple (TPS), and in general n-parton scatterings from the corresponding single–parton (σ sps) values in high-energy proton–proton, proton–nucleus, and nucleus–nucleus collisions is reviewed.

The basic parameter of the factorized n. Audio Books & Poetry Community Audio Computers, Technology and Science Music, Arts & Culture News & Public Affairs Non-English Audio Spirituality & Religion.

Librivox Free Audiobook. Clint Taylor 배워봅서 관광일본어 - KCTV. The distributions are not affected by the values of a, b and σ instead these parameters have significant effect on the rapidity distribution shapes.

The fit parameters obtained from the rapidity distributions of the three experimental data set at = TeV are given in Table uncertainties in the values of model parameters represent the uncertainties due to the fit. Several effects typical of heavy-ion phenomenology have been observed in high-multiplicity proton–proton (pp) collisions 8,9, but the enhanced production of.

The lightest meson is the pion and is therefore the most important one from a radiation point of view. The next lightest meson is the kaon, and its interactions will be dealt with in future work. For the present, only pion interactions will be considered.

Previous work (refs. 5 8) evaluated pion production in proton-proton collisions. The. The apparatus could be rotated to select either proton-proton or antiproton-proton interactions.

The meson production cross section results were obtained from the analysis of inverse picobarns (pb ^{-1}) of pp data collected in and pb^{-1} of pp data collected in The experimental data on the production ofK −-mesons in pp-collisions are analyzed and a method of the unified description of these data in a broad energy range for primary protons is proposed.

TheK −-mesons production in pA-collisions is considered. The simple formulas for inclusive cross sections of theK −-production in these collisions are given.An invariant differential cross section measurement of inclusive π^0 and η meson production at mid-rapidity in pp collisions at √s=8 TeV was carried out by the ALICE experiment at the LHC.

The spectra of π^0 and η mesons were measured in transverse momentum ranges of