Results 41 to 50 of about 1,684,231 (310)

Charm meson scattering cross sections by pion and rho meson [PDF]

, 2001
Using the local flavor SU(4) gauge invariance in the limit of vanishing vector meson masses, we extend our previous study of charm meson scattering cross sections by pion and rho meson, which is based only on the pseudoscalar-pseudoscalar-vector meson ...
Baier, Belyaev, Bratkovskaya, Brown, C.M. Ko, Colangelo, Haglin, Haglin, Kapusta, Ko, Li, Lin, Lin, Lin, Lin, Matinyan, Peters, Shuryak, T.G. Di, Tsushima, Ziwei Lin   +20 more
core   +2 more sources

Exploration of trace anomaly contribution to proton mass based on light vector meson photoproduction

European Physical Journal C: Particles and Fields, 2023
In the quantum chromodynamics, the mass source of the proton is decomposed into four parts by the energy momentum tensor: quark energy term, gluon energy term, quark mass term and trace anomaly term.
Chen Dong, Jiyuan Zhang, Jingxuan Bu, Huifang Zhou, Xiao-Yun Wang   +4 more
doaj   +1 more source

Vector-meson dominance and diffractive electroproduction of vector mesons

Nuclear Physics B, 1969
Abstract A vector-meson dominance model of diffractive electroproduction of vector mesons at high energies is presented. The assumption that the invariant amplitudes are slowly varying as a function of the vector-meson mass, when extrapolating to the spacelike region, is shown to lead to serious difficulties when combined with helicity independence ...
FRAAS, H, Schildknecht, Dieter
openaire   +3 more sources

RADIATIVE VECTOR MESON DECAY [PDF]

International Journal of Modern Physics A, 2005
We study the radiative ρ, ω and ϕ decay into π0π0γ and π0ηγ taking into account mechanisms in which there are two sequential vector-vector-pseudoscalar or axial-vector–vector–pseudoscalar steps followed by the coupling of a vector meson to the photon, considering the final state interaction of the two mesons.
Palomar Burdeus, Juan Esteban, Roca Zamora, Luis, Oset Báguena, Eulogio, Vicente Vacas, Manuel José   +3 more
openaire   +4 more sources

Double vector meson production in photon–hadron interactions at hadronic colliders [PDF]

, 2016
In this paper we analyze the double vector meson production in photon–hadron ($$\gamma h$$γh) interactions at pp / pA / AA collisions and present predictions for the $$\rho \rho $$ρρ, $$J/\Psi J/\Psi $$J/ΨJ/Ψ, and $$\rho J/\Psi $$ρJ/Ψ production ...
V. Gonçalves, B. Moreira, F. Navarra
semanticscholar   +1 more source

Observation of a New Narrow Axial-Vector Meson a1(1420). [PDF]

Physical Review Letters, 2015
The COMPASS Collaboration at CERN has measured diffractive dissociation of 190  GeV/c pions into the π(-)π(-)π(+) final state using a stationary hydrogen target.
C. Adolph, R. Akhunzyanov, M. Alexeev, G. Alexeev, A. Amoroso, V. Andrieux, V. Anosov, A. Austregesilo, C. Azevedo, B. Badelek, F. Balestra, J. Barth, R. Beck, Y. Bedfer, J. Bernhard, K. Bicker, E. Bielert, R. Birsa, J. Bisplinghoff, M. Bodlák, M. Boer, P. Bordalo, F. Bradamante, C. Braun, A. Bressan, M. Büchele, É. Burtin, W. Chang, M. Chiosso, I. Choi, S. Chung, A. Cicuttin, M. Crespo, Q. Curiel, S. Dalla Torre, S. Dasgupta, S. Dasgupta, O. Denisov, L. Dhara, S. Donskov, N. Doshita, W. Dünnweber, V. Duic, M. Dziewiecki, A. Efremov, P. Eversheim, W. Eyrich, M. Faessler, A. Ferrero, M. Finger, H. Fischer, C. Franco, N. du Fresne von Hohenesche, J. Friedrich, V. Frolov, F. Gautheron, O. Gavrichtchouk, S. Gerassimov, I. Gnesi, M. Gorzellik, S. Grabmüller, A. Grasso, M. Grosse-Perdekamp, B. Grube, T. Grussenmeyer, A. Guskov, F. Haas, D. Hahne, D. von Harrach, R. Hashimoto, F. Heinsius, F. Herrmann, F. Hinterberger, N. Horikawa, N. D’hose, C. Hsieh, S. Huber, S. Ishimoto, A. Ivanov, Y. Ivanshin, T. Iwata, R. Jahn, V. Jarý, P. Jörg, R. Joosten, E. Kabuß, B. Ketzer, G. Khaustov, Y. Khokhlov, Y. Kisselev, F. Klein, K. Klimaszewski, J. Koivuniemi, V. Kolosov, K. Kondo, K. Königsmann, I. Konorov, V. Konstantinov, A. Kotzinian, O. Kouznetsov, M. Krämer, P. Kremser, F. Krinner, Z. Kroumchtein, N. Kuchinski, F. Kunne, K. Kurek, R. Kurjata, A. Lednev, A. Lehmann, M. Levillain, S. Levorato, J. Lichtenstadt, A. Maggiora, A. Magnon, N. Makins, N. Makke, G. Mallot, C. Marchand, A. Martin, J. Marzec, J. Matoušek, H. Matsuda, T. Matsuda, G. Meshcheryakov, W. Meyer, T. Michigami, Y. Mikhailov, Y. Miyachi, A. Nagaytsev, T. Nagel, F. Nerling, D. Neyret, V. Nikolaenko, J. Nový, W. Nowak, A. S. Nunes, A. Olshevsky, I. Orlov, M. Ostrick, D. Panzieri, B. Parsamyan, S. Paul, J.-C. Peng, F. Pereira, M. Pešek, D. Peshekhonov, S. Platchkov, J. Pochodzalla, V. Polyakov, J. Pretz, M. Quaresma, C. Quintans, S. Ramos, C. Regali, G. Reicherz, C. Riedl, E. Rocco, N. Rossiyskaya, D. Ryabchikov, A. Rychter, V. Samoylenko, A. Sandacz, C. Santos, S. Sarkar, I. Savin, G. Sbrizzai, P. Schiavon, S. Schmeing, K. Schmidt, H. Schmieden, K. Schönning, S. Schopferer, T. Schlüter, A. Selyunin, O. Shevchenko, L. Silva, L. Sinha, S. Sirtl, M. Slunecka, F. Sozzi, A. Srnka, M. Stolarski, M. Sulc, H. Suzuki, A. Szabelski, T. Szameitat, P. Sznajder, S. Takekawa, J. ter Wolbeek, S. Tessaro, F. Tessarotto, F. Thibaud, V. Tskhay, S. Uhl, J. Veloso, M. Virius, S. Wallner, T. Weisrock, M. Wilfert, K. Zaremba, M. Zavertyaev, E. Zemlyanichkina, M. Ziembicki, A. Zink   +204 more
semanticscholar   +1 more source

The photoproduction of vector mesons [PDF]

Nuclear Physics A, 2002
At high energy, the photoproduction or electroproduction of Vector Mesons allow to prepare a beam of quark-antiquark pairs of a given flavor. At high momentum transfer, the study of the scattering of these pairs on a nucleon opens up an original window on the quark-gluon structure of hadronic matter, which may eventually shed light on its gluonic ...
openaire   +4 more sources

Vector mesons polarization versus color transparency

EPJ Web of Conferences, 2017
Vector mesons V = ρ, ω, φ can be transversely (helicity λ = ±1) or longitudinally (λ = 0) polarized. Can vector mesons polarization influence on their interaction with nucleons and nuclei?
Gevorkyan Sergey
doaj   +1 more source

Skyrmions and Vector Mesons [PDF]

Physical Review Letters, 1986
We discuss the scattering of mesons of arbitrary spin and isospin from baryons in models in which the baryon is considered a soliton, or ''skyrmion,'' in an effective Lagrangian of mesons. Model-independent linear relations between partial-wave amplitudes are derived for piN..-->..rhoN and ..pi..N..--> omega..N, and, where possible, are compared with ...
openaire   +3 more sources

Accessing transverse nucleon and gluon distributions in heavy nuclei using coherent vector meson photoproduction at high energies in ion ultraperipheral collisions [PDF]

, 2016
By using the theoretical approaches describing well the available data on $t$-integrated coherent photoproduction of light and heavy vector mesons in Pb-Pb ultraperipheral collisions (UPCs) at the Large Hadron Collider (LHC) in Run 1, we calculate the ...
V. Guzey, M. Strikman, M. Zhalov
semanticscholar   +1 more source