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Monday, August 3, 2020 | History

3 edition of Photoproduction of [pi]-mesons. found in the catalog.

Photoproduction of [pi]-mesons.

Frederik Allard Berends

Photoproduction of [pi]-mesons.

by Frederik Allard Berends

  • 43 Want to read
  • 35 Currently reading

Published by G. W. van der Wiel & Co. in Arnhem .
Written in English

    Subjects:
  • Pions.,
  • Photonuclear reactions.

  • Classifications
    LC ClassificationsQC721 .B466
    The Physical Object
    Pagination100 p.
    Number of Pages100
    ID Numbers
    Open LibraryOL4046285M
    LC Control Number79393648

    The cross section is estimated for the $\pi^+\pi^-\pi^0$ invariant mass distribution in the $\gamma p$ reaction in the GeV region. This reaction is assumed to proceed through the formation of the $\omega$ meson in the intermediate state, since the production cross section for this meson in the $\gamma p$ reaction in GeV region is significant and it has large branching ratio (%) in the $\pi. We'll discuss the photoproduction of eta-pi^0 and the sensibility of the observables to the exotic P-wave. We'll present a new observable, the beam asymmetry along the y axis, which allows to easily identify exotic odd waves. Finally we'll illustrate these considerations with a simple model for the eta-pi^0 photoproduction.

    The possible existence of deeply bound nuclear K̅ states is investigated theoretically for few-body systems. The nuclear ground states of a K- in 3He, 4He, and 8Be are predicted to be discrete. Despite decades of studies of the photoproduction of hyperons, both their production mechanisms and their spectra of excited states are still largely unknown. Book. Full-text available. Sep.

    Photoproduction of K* for the study of lambda() By T. Hyodo, Atsushi Hosaka, () which peaks at MeV, and differs from the nominal one. Combined with several other reactions, like the pi(-) p --> K(0)pi Sigma which favours the first pole, this detailed study will reveal a novel structure of the Lambda() state. A chiral quark-model approach is adopted to study the $\gamma p\rightarrow \pi^0p$ and $\gamma n\rightarrow \pi^0 n$ reactions. Good descriptions of the total and differential cross sections and single-polarization observables are obtained from the pion production threshold up .


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Photoproduction of [pi]-mesons by Frederik Allard Berends Download PDF EPUB FB2

Published in: Springer Tracts ()Berlin, R.R. Germany: Springer () p. (Springer tracts in modern physics, )Cited by: 7. Part of the Springer Tracts in Modern Physics book series (STMP, volume 59) This talk presents the work of P. Nölle, W.

Pfeil and D. Schwela: “Multipole Analysis of pi-zero and pi-plus photoproduction between threshold and MeV”.Cited by: 2. 8.B.5Nuclear Physics () North-Holland Publ. Comp., Amsterdam PHOTOPRODUCTION OF SOFT PIONS IN y + e - 7r+ + 3H D. GRIFFITHS and C. KIM Department of Physics, The Johns Hopkins University Baltimore, Maryland Received 13 November Abstract: The algebra of currents and the partially conserved axial-vector current hypothesis are used Cited by: 9.

8.A.8 Nuclear Physics B6 () North-Holland Publ. Comp., Amsterdam 8.B.5 THEORY OF PHOTOPRODUCTION OF PIONS FROM AND 1 60 D. GRIFFITHS and C. KIM Department of Physics, The Johns Hopkins University, Baltimore, Maryland Received 29 February Abstract: Gauge invariance and the partially conserved axial-vector current hypothesis are used in the soft-pion Cited by: 6.

@misc{etde_, title = {Determination of the double-polarization observable G in {pi}{sup 0} photoproduction; Bestimmung der Doppelpolarisationsobservablen G in {pi}{sup 0}-Photoproduktion} author = {Thiel, Annika} abstractNote = {The hadron spectroscopy represents for the study of the internal structure of the nucleons and by this the interaction between the constituents, the quarks, a.

A constant initial slope in PI curves has been reported for many microalgae species in the literature (MacIntyre et al., ), although there are some exceptions (Neidhardt et al., ). It is a supposition that the reaction gamma + d → pi° + d can provide useful experimental information for the study of (a) the fundamental process gamma + n → pi° + n, deuteron binding (the N-N force).

Process (a) must in general be studied using a bound neutron because of the short lifetime of the free neutron. The deuteron, being the simplest bound system available would seem to be an. Experimental data on the energy dependence of pre-exponential constant Csub(rho) in the representation rho = f/o sub(t) = Csub(rho)exp(T/Tsub(0)) of the invariant normalized cross section of the cumulative proton photoproduction are reported.

Cumulative protons are produced by the primary gamma-quanta in the GeV energy range on C, Al, Cu, Sn, and Pb in the gamma+A yields. Home; Aims and scope; Projects. P1: Precision hadron physics: (g-2)μ and αem(M2Z) P1: Accomplishments of first funding period P1: Accomplishments of the second funding period.

On the other hand, large pi photoproduction has the very interesting feature of producing gluons at the Born term level through the QCD Compton effect yq - qg [1 ].

We have shown in a preceding paper [2] that this reaction provides a very clear test of QCD and allows a direct experimental approach of the QCD Compton cross section. Fig. 3 compares three predicted PI curves for a sample acclimated at μE m −2 s − dashed curve is identical to the profile reported in Fig.

2; the dotted line represents the profile predicted if the value of C at the beginning of the protocol is ; and the continuous curve represents the predicted PI curve if a longer protocol with 20 (instead of 10) stages of 5 minutes constant.

We obtain the mass distribution of the $\Lambda()$ which peaks at MeV, and differs from the nominal one. Combined with several other reactions, like the $\pi^- p \to K^0 \pi \Sigma$ which favours the first pole, this detailed study will reveal a novel structure of the $\Lambda()$ state.

Nuclear Physics B97 () North-Holland Publishing Company PARTIALrWAVE ANALYSIS OF SINGLE PION PHOTOPRODUCTION IN THE RESONANCE REGION USING FIXED-t DISPERSION RELATIONS R.L. CRAWFORD Department of Natural Philosophy, University of Glasgow, Scotland Received 3 February (Revised 14 April ) A partial-wave analysis is made of pion photoproduction.

The strong enhancement of the production cross section at low transverse momentum is consistent with coherent photoproduction. The pi{sup +}pi{sup -}pi{sup +}pi{sup -} invariant mass spectrum of the coherent events exhibits a broad peak around + MeV/c{sup 2} with a width of + MeV/c{sup 2}, in agreement with themore».

Measurement of \(\Sigma\) beam asymmetry in \(\pi^{0}_{}\) photoproduction off the neutron in the second and third resonances region ⋆ R. Di Salvo, A. Fantini, G.

Mandaglio, F. Mammoliti. This is considered as a consequence of the double pole structure of $\Lambda()$, predicted in the chiral unitary model.

Combined with other reactions, such as $\pi^- p \to K^0 \pi\Sigma$, experimental confirmation of this fact will reveal a novel structure of the $\Lambda()$ state. The book is the thing that got me started on things like building a telegraph line.

Also, the Logan library had lots of books written around the time of Edison—books that told you how to make batteries and all kinds of wonderful things.

They were written for grownups, but anybody could understand them. The U.S. Department of Energy's Office of Scientific and Technical Information. Differential cross sections, photon beam asymmetries, and spin density matrix elements of ω photoproduction off the proton at Eγ=− GeV #7 N.

Muramatsu. Bioenergy Research: Advances and Applications brings biology and engineering together to address the challenges of future energy needs.

The book consolidates the most recent research on current technologies, concepts, and commercial developments in various types of widely used biofuels and integrated biorefineries, across the disciplines of biochemistry, biotechnology, phytology, and.

The contributions of direct knockout processes, in addition to the diffractive production and one-pion-exchange processes associated with the phi-rho-pi and phi-gamma-pi couplings, to the polarization observables of the phi photoproduction from proton are [email protected]{osti_, title = {Baryon Spectroscopy Through Partial-Wave Analysis and Meson Photoproduction}, author = {Manley, D.

Mark}, abstractNote = {The principal goal of this project is the experimental and phenomenological study of baryon spectroscopy. The PI's group consists of himself and three graduate students.

This final report summarizes research activities by the PI's group.Book. Aug ; V. Devanathan The photoproduction of pions from 12C leading to the ground states of 12N and 12B is studied in the distorted-wave impulse approximation theory using the nuclear.