Výsledky vyhledávání

An analysis on extrema and constrained bounds for the soft pomeron intercept

Autor: J. Montanha, Márcio José Menon, E. G. S. Luna

Publikováno v: Nuclear Physics A. 745:104-120

We investigate some aspects and consequences of the extrema bounds for the soft Pomeron intercept, recently determined by means of global fits to $pp$ and $\bar{p}p$ total cross section data at both accelerator and cosmic-ray energy regions (scatteri

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b890b05da421707a3f30da25c69a35ce
https://doi.org/10.1016/j.nuclphysa.2004.09.004

Zobrazit plný text záznamu

Extensions of the extrema bounds for the pomeron intercept to meson-proton, gamma-proton and gamma-gamma scattering

Autor: J. Montanha, E. G. S. Luna, Márcio José Menon

Publikováno v: Brazilian Journal of Physics, Volume: 34, Issue: 1a, Pages: 268-271, Published: MAR 2004
Brazilian Journal of Physics v.34 n.1a 2004
Brazilian Journal of Physics
Sociedade Brasileira de Física (SBF)
instacron:SBF

Making use of the extrema bounds for the soft pomeron intercept, recently determined by fits to pp and data (from both accelerator and cosmic-ray experiments), we investigate the total cross sections for pion-proton, kaon-proton, gamma-proton and gam

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cf1f8b22b8af8c187fb895d558bef740
https://doi.org/10.1590/s0103-97332004000200026

Zobrazit plný text záznamu

A new determination of the soft pomeron intercept

Autor: J. Montanha, K. Goulianos, Roberto J. M. Covolan

Publikováno v: Physics Letters B. 389:176-180

Using Regge theory at Born level and with eikonalized amplitudes we obtain for the pomeron intercept the values 1.104 and 1.122, respectively, from global fits to total cross section and ϱ-value data for p ± p , π ± p and K ± p .

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::7cd59c164add4e6491806cff37852c56
https://doi.org/10.1016/s0370-2693(96)01362-7

Zobrazit plný text záznamu

The electro-optical Kerr effect in binary mixtures of polar liquids

Autor: A Balbin Villaverde, J Montanha Neto

Publikováno v: Journal of Physics: Condensed Matter. 8:2791-2800

We report in this paper the measurement of the Kerr constant for six mixtures of polar liquids: acetone - quinoline, acetone - isopropyl benzene, acetone - nitromethane, acetone - water, acetone - acetic acid and water - t-butyl alcohol. The Kerr con

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b06f3e70771a98adf355651d91269d07
https://doi.org/10.1088/0953-8984/8/16/008

Zobrazit plný text záznamu

On model-independent analyses of elastic hadron scattering

Autor: Márcio José Menon, S.D. Campos, J. Montanha, R. F. Ávila

Publikováno v: Brazilian Journal of Physics, Volume: 37, Issue: 2b, Pages: 675-677, Published: JUL 2007
Brazilian Journal of Physics v.37 n.2b 2007
Brazilian Journal of Physics
Sociedade Brasileira de Física (SBF)
instacron:SBF

By means of an almost model-independent parametrization for the elastic hadron-hadron amplitude, as a function of the energy and the momentum transfer, we obtain good descriptions of the physical quantities that characterize elastic proton-proton and

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e350ffecf61fd207b1152df608adc7b5
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-97332007000400039&lng=en&tlng=en

Zobrazit plný text záznamu

On the slope of the elastic differential cross sections

Autor: S.D. Campos, J. Montanha, Márcio José Menon

Publikováno v: Repositório da Produção Científica e Intelectual da Unicamp
Universidade Estadual de Campinas (UNICAMP)
instacron:UNICAMP
Brazilian Journal of Physics v.37 n.1a 2007
Brazilian Journal of Physics
Sociedade Brasileira de Física (SBF)
instacron:SBF
Brazilian Journal of Physics, Volume: 37, Issue: 1a, Pages: 80-83, Published: MAR 2007

Agradecimentos: We congratulate Professor Yogiro Hama for his 70th anniversary. For financial supports, S.D.C and M.J.M are thankful to BIG-UNICAMP and M.J.M. also to FAPESP (Contract No.04/10619-9) Abstract: Making use of a model-independent analyti

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::180aac14b3b5d46cb6b070c972e106aa

Zobrazit plný text záznamu

Phenomenological analysis connecting proton-proton and antiproton-proton elastic scattering

Autor: R. F. Ávila, S.D. Campos, J. Montanha, Márcio José Menon

Based on the behavior of the elastic scattering data, we introduce an almost model-independent parametrization for the imaginary part of the scattering amplitude, with the energy and momentum transfer dependences inferred on empirical basis and selec

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f1c2711cdaf9515a331ffa1b037a7541
http://arxiv.org/abs/hep-ph/0603035

Zobrazit plný text záznamu

Correlations between total cross sections and slopes

Autor: A. F. Martini, Márcio José Menon, J. Montanha

Publikováno v: Brazilian Journal of Physics, Volume: 34, Issue: 1a, Pages: 263-267, Published: MAR 2004
Brazilian Journal of Physics v.34 n.1a 2004
Brazilian Journal of Physics
Sociedade Brasileira de Física (SBF)
instacron:SBF

We investigate correlations between the total cross section and the slope of the elastic differential cross section for proton-proton and antiproton-proton scattering at the highest energies. Based on the empirical behavior of these quantities as fun

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::58734d6dffaa5053711bd2f7c8912f9b
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-97332004000200025&lng=en&tlng=en

Zobrazit plný text záznamu

Analytical fits to hadron-hadron differential cross section data at the diffraction peak

Autor: J. Montanha, R. F. Ávila, Márcio José Menon, S.D. Campos

Publikováno v: AIP Conference Proceedings.

We analize the diffraction peak in the differential cross section on pp and pp elastic scattering by means of a novel analytical parametrization for the scattering amplitude, which is consequence of the Principles of Analyticity and Crossing Symmetry

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::d38cd123eb61c37e2fd3c767337243c2
https://doi.org/10.1063/1.1843644

Zobrazit plný text záznamu

Zeros in the Electromagnetic and Hadronic Form Factors

Autor: M.J. Menon, A. F. Martini, J. Montanha

Publikováno v: AIP Conference Proceedings.

We discuss the evidences for the existence of zeros in the electric and in the hadronic form factors of the proton. We show that the shapes of both form factors are similar, but there is indication that the hadronic form factors can depend on the ene

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::58a4280fe9ca8333f1a49fcbabaa6674
https://doi.org/10.1063/1.1843660

Zobrazit plný text záznamu

Vyhledávací nástroje:

Upřesnit hledání