Results 121 to 130 of about 197,506 (281)

Ward Identities, B-> \rho Form Factors and |V_ub|

, 2003
The exclusive FCNC beauty semileptonic decay B-> \rho is studied using Ward identities in a general vector meson dominance framework, predicting vector meson couplings involved.
, A. Abada ., A. Abada ., A. Ali, A. Khodjamirian, A. Khodjamirian, A. Masiero, A.P. Bakulev, A.S. Safir, A.X. El-Khadra, Amjad Hussain Shah Gilani, APE collaboration, B. Bakamjian, BABAR collaboration, BABAR collaboration, BABAR collaboration, BABAR collaboration, BELLE collaboration, BELLE collaboration, C.A. Dominguez, C.A. Dominguez, C.A. Dominguez, C.W. Bauer, CLEO collaboration, CLEO collaboration, CLEO collaboration, CLEO collaboration, D. Becirevic, D. Melikhov, D. Melikhov, D. Scora, E. Eichten, E791 collaboration, F.J. Gilman, For a review of the Heavy Quark Symmetry results for the form factors, G. Buchalla, G. Burdman, H.-M. Choi, I.L. Grach, J. Charles, J. Charles, J.D. Richman, J.G. Korner, J.G. Körner, J.M. Flynn, J.M. Flynn, J.M. Soares, J.M. Soares, J.M. Soares, JLQCD collaboration, JLQCD collaboration, L. Lellouch, L. Lellouch, M. Beneke, M. Beneke, M. Beyer, M. Kobayashi, M. Neubert, M. Wirbel, M.A. Shifman, M.J. Dugan, N. Cabibbo, N. Isgur, N. Isgur, N.B. Demchuk, P. Ball, P. Ball, P. Ball, P. Ball, P.J. O'Donnell, Particle Data Group collaboration, Particle Data Group collaboration, R.N. Faustov, Riazuddin, Riazuddin, , S. Hashimoto, S. Ryan ., S.M. Ryan, SPQcdR collaboration, T. Feldmann, T. Huang, T. Kurimoto, T. Mannel, T.M. Aliev, Thamer Abdulmohsen Al-Aithan, U. Aglietti, UKQCD collaboration, UKQCD collaboration, UKQCD collaboration, UKQCD collaboration, W.Y. Wang, W.Y. Wang, Z. Ligeti   +92 more
core   +1 more source

Recent ATLAS results in the field of meson physics

EPJ Web of Conferences, 2014
Recent results on flavor physics are presented, using data from the ATLAS detector. The ϓ(nS) and charmonium inclusive production cross sections are discussed. J/ψ production associated with a W vector boson is presented.
Wang Rui
doaj   +1 more source

Light Vector Meson Spectroscopy [PDF]

, 2001
The current situation for vector meson spectroscopy is outlined, and it is shown that the data are inconsistent with the generally-accepted model for meson decay. A possible resolution in terms of exotic (hybrid) mesons is given. Although this hypothesis
Donnachie, A
core   +1 more source

Configurational information measure of mesonic states in 4-flavor AdS/QCD

Physics Letters B, 2023
Strange axial-vector kaons, K1, and f1 meson resonances are investigated in the 4-flavor AdS/QCD model. Their underlying differential configurational entropy is computed and the mass spectra of higher-excited resonances, in both these mesonic families ...
G. Karapetyan, W. de Paula, R. da Rocha
doaj  

Meson propagators in spontaneously broken gauge theories [PDF]

arXiv, 2001
Contrary to common belief, the longitudinal vector meson and scalar meson propagators have very different forms in spontaneously broken gauge theories. We choose the Abelian-Higgs model as an example and show that the longitudinal vector meson and scalar meson propagators have double poles by an extensive use of the Ward-Takahashi identities.
arxiv  

Coherent Vector Meson Photoproduction with Nuclear Breakup in Relativistic Heavy Ion Collisions

, 2002
Relativistic heavy ions are copious sources of virtual photons. The large photon flux gives rise to a substantial photonuclear interaction probability at impact parameters where no hadronic interactions can occur.
A. J. Baltz, A. J. Baltz, Anthony J. Baltz, C. A. Bertulani, C. Adler, G. Baur, G. Baur, I. A. Pshenichnov, Joakim Nystrand, K. Hencken, K. Hencken, M. Vidovic, M. Vidovic, N. Baron, R. N. Cahn, S. N. Gupta, S. R. Klein, S. R. Klein, Spencer R. Klein   +18 more
core   +2 more sources

Next-to-leading order corrections to deeply virtual production of pseudoscalar mesons

Physics Letters B, 2017
We complete the perturbative next-to-leading order corrections to the hard scattering amplitudes of deeply virtual meson leptoproduction processes at leading twist-two level by presenting the results for the production of flavor singlet pseudoscalar ...
G. Duplančić, D. Müller, K. Passek-Kumerički   +2 more
doaj  

Diffractive production of vector mesons in Deep Inelastic Scattering within k_t-factorization approach [PDF]

arXiv, 2003
In this work we give a theoretical description of the elastic vector meson production in diffractive DIS developed within the k_t-factorization formalism. Since the k_t-factorization scheme does not require large values of Q^2+m_V^2, we conduct an analysis that is applicable to all values of Q^2 from photo- up to highly virtual production of vector ...
arxiv  

Elastic production of Vector Mesons at HERA: study of the scale of the interaction and measurement of the helicity amplitudes [PDF]

, 1999
A compilation of H1 and ZEUS cross section measurements for elastic vector meson production is presented as a function of the scale $K^2 = (Q^2+M_V^2)/4$, where Q^2 is the exchanged photon virtuality and M_V is the mass of the vector meson.
Clerbaux, Barbara
core   +1 more source

Production of Vector π-Mesons by High Energy Nucleon-Nucleon Collisions [PDF]

, 1951
K. Ida
openalex   +1 more source