Results 1 to 10 of about 252,628 (218)

Pion Detection Using Single Photon Avalanche Diodes [PDF]

Sensors, 2023
We present the first reported use of a CMOS-compatible single photon avalanche diode (SPAD) array for the detection of high-energy charged particles, specifically pions, using the Super Proton Synchrotron at CERN, the European Organization for Nuclear ...
Anthony Frederick Bulling, Ian Underwood
doaj   +2 more sources

Regge analysis of pion-pion (and pion-kaon) scattering for energy s^{1/2}>1.4 GeV [PDF]

Phys.Rev.D69:114001,2004, 2003
We perform a detailed Regge analysis of NN, pion-N and pion-pion scattering. From it, we find expressions that represent the pion-pion scattering amplitudes with an accuracy of a few percent, for exchange of isospin zero, and $\sim15%$ for exchange of isospin 1, and this for energies s^{1/2}> 1.4 GeV and for momentum transfers |t|^{1/2}< 0.4 GeV ...
Pelaez, J. R., Yndurain, F. J.
arxiv   +6 more sources

Evaluation of the Axial Vector Commutator Sum Rule for Pion-Pion Scattering [PDF]

Phys.Rev.D75:116002,2007, 2007
We consider the sum rule proposed by one of us (SLA), obtained by taking the expectation value of an axial vector commutator in a state with one pion. The sum rule relates the pion decay constant to integrals of pion-pion cross sections, with one pion off the mass shell.
F. J. Ynduráin, M. E. Saino, Stephen L. Adler, Y. Tomozawa   +3 more
arxiv   +3 more sources

Information on the structure of the rho meson from the pion form-factor [PDF]

Phys.Rev.D80:114012,2009, 2009
The electromagnetic pion form-factor is calculated in a Bethe-Salpeter approach which accounts for pion rescattering. In the scattering kernel the pion-pion contact interaction from lowest-order chiral perturbation theory is considered together with an optional vector meson in the s-channel.
F. Klingl, S. Leupold
arxiv   +3 more sources

The pion charge radius from charged pion electroproduction [PDF]

Phys.Rev. C62 (2000) 028201, 2000
We analyze a low-energy theorem of threshold pion electroproduction which allows one to determine the charge radius of the pion. We show that at the same order where the radius appears, pion loops induce a correction to the momentum dependence of the longitudinal dipole amplitude $L_{0+}^{(-)}$.
A. Liesenfeld, E. Amaldi, E. Jenkins, G. Ecker, J. Bijnens, Norbert Kaiser, S. Amendolia, S. Scherer, T. Becher, Ulf-G. Meißner, V. Bernard, V. Bernard, V. Bernard, Véronique Bernard   +13 more
arxiv   +4 more sources

Dispersion relation for hadronic light-by-light scattering: two-pion contributions [PDF]

Journal of High Energy Physics, 2017
In this third paper of a series dedicated to a dispersive treatment of the hadronic light-by-light (HLbL) tensor, we derive a partial-wave formulation for two-pion intermediate states in the HLbL contribution to the anomalous magnetic moment of the muon (
Gilberto Colangelo, Martin Hoferichter, Massimiliano Procura, Peter Stoffer   +3 more
doaj   +2 more sources

Probing the Symmetry Energy with the Spectral Pion Ratio. [PDF]

Physical Review Letters, 2021
Many neutron star properties, such as the proton fraction, reflect the symmetry energy contributions to the equation of state that dominate when neutron and proton densities differ strongly.
J. Estee, W. G. Lynch, C. Tsang, J. Barney, G. Jhang, M. Tsang, R. Wang, M. Kaneko, J. W. Lee, T. Isobe, M. Kurata-Nishimura, T. Murakami, D. Ahn, L. Atar, T. Aumann, H. Baba, K. Boretzky, J. Brzychczyk, G. Cerizza, N. Chiga, N. Fukuda, I. Gašparić, B. Hong, A. Horvat, K. Ieki, N. Inabe, Y. J. Kim, T. Kobayashi, Y. Kondo, P. Lasko, H. S. Lee, Y. Leifels, J. Łukasik, J. Manfredi, A. McIntosh, P. Morfouace, T. Nakamura, N. Nakatsuka, S. Nishimura, H. Otsu, P. Pawlowski, K. Pelczar, D. Rossi, H. Sakurai, C. Santamaria, H. Sato, H. Scheit, R. Shane, Y. Shimizu, H. Simon, A. Snoch, A. Sochocka, T. Sumikama, H. Suzuki, D. Suzuki, H. Takeda, S. Tangwancharoen, H. Toernqvist, Y. Togano, Z. Xiao, S. Yennello, Y. Zhang, M. D. Cozma   +62 more
semanticscholar   +1 more source

Concerning pion parton distributions [PDF]

European Physical Journal A, 2021
Analyses of the pion valence-quark distribution function (DF), , which explicitly incorporate the behaviour of the pion wave function prescribed by quantum chromodynamics (QCD), predict , $$\beta (\zeta \gtrsim m_p)>2$$ β ( ζ ≳ m p ) > 2 , where $$m_p ...
Zhu-Fang Cui, M. Ding, J. Morgado, K. Raya, D. Binosi, L. Chang, J. Papavassiliou, C. Roberts, J. Rodr'iguez-Quintero, S. Schmidt   +9 more
semanticscholar   +1 more source

Space–Time Structure of Particle Emission and Femtoscopy Scales in Ultrarelativistic Heavy-Ion Collisions

Universe, 2023
The analysis of the spatiotemporal picture of particle radiation in relativistic heavy-ion collisions in terms of correlation femtoscopy scales, emission, and source functions allows one to probe the character of the evolution of the system created in ...
Yuri Sinyukov, Volodymyr Shapoval, Musfer Adzhymambetov   +2 more
doaj   +1 more source

Selected peasant issues of the 1930s in the opinions of Warsaw literary magazine columnists (Wiadomości Literackie, Prosto z Mostu, and Pion)

Zeszyty Wiejskie, 2023
In the press of the interwar period, among the group of Warsaw opinion-forming periodicals, the three largest literary and social weeklies dominated – the liberal Wiadomości Literackie, the pro-Sanacja Pion and the right-wing Prosto z Mostu.
Małgorzata Bańkowska
doaj   +1 more source