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Simultaneous $\chi^{2}$ analyses previously made for elastic scattering and fusion cross section data for the $^{6}$Li+$^{208}$Pb system is extended to the $^{7}$Li+$^{208}$Pb system at near-Coulomb-barrier energies based on the extended…

Nuclear Theory · Physics 2008-11-26 W. Y. So , T. Udagawa , K. S. Kim , S. W. Hong , B. T. Kim

The increase of the measured hadronic total cross sections at the highest energies is empirically described by squared log of center-of-mass energy sqrt s as sigma(tot)= B (log s)2, consistent with the energy dependence of the Froissart…

High Energy Physics - Phenomenology · Physics 2011-08-09 Muneyuki Ishida , Vernon Barger

The TOTEM collaboration has measured the proton-proton total cross section at $\sqrt{s}=13$ TeV with a luminosity-independent method. Using dedicated $\beta^{*}=90$ m beam optics, the Roman Pots were inserted very close to the beam. The…

We describe the main features of recent LHC data on elastic pp scattering through a simple parametrization to the amplitude, inspired by a model proposed by Barger and Phillips in 1973, comprising of two exponentials with a relative phase.…

High Energy Physics - Phenomenology · Physics 2013-12-04 Daniel A. Fagundes , Agnes Grau , Simone Pacetti , Giulia Pancheri , Yogendra N. Srivastava

Measurements of the ratio of the elastic form factors of the proton ($\mu_pG_E/G_M$) exhibit a strong discrepancy. Experiments using unpolarized beams and Rosenbluth separation to determine the form factors have found values of the ratio…

Nuclear Experiment · Physics 2022-09-21 Brian S. Henderson

We analyse the recent LHC data at 7 and 8 TeV for pp elastic scattering with special attention for the structure of the real part, which is shown to be crucial to describe the differential cross section in the forward region. We determine…

High Energy Physics - Phenomenology · Physics 2018-07-05 A. K. Kohara , E. Ferreira , T. Kodama , M. Rangel

Absolute total cross sections for np and pp scattering below 1000 MeV are determined based on partial-wave analyses of NN scattering data. These cross sections are compared with most recent ENDF/B and JENDL data files, and the Nijmegen…

Nuclear Experiment · Physics 2014-11-18 R. A. Arndt , W. J. Briscoe , A. B. Laptev , I. I. Strakovsky , R. L. Workman

The method described in my RHIC Spin Note (hep-ph/305085) is applied to recently reported data from RHIC experiments in order to obtain values for the spin-flip Regge couplings. The data comes from both 100 GeV/c proton elastic scattering…

High Energy Physics - Phenomenology · Physics 2017-08-23 T. L. Trueman

Evaluating the H(x, s; pp) scaling function of elastic proton-proton (pp) collisions from recent TOTEM data at sqrt(s) = 8 TeV and comparing it with the same function of elastic proton-antiproton (pp-) data of the D0 collaboration at…

High Energy Physics - Phenomenology · Physics 2024-06-27 T. Csörgő , T. Novák , R. Pasechnik , A. Ster , I. Szanyi

Based on an approach recently proposed by us, simultaneous $\chi^{2}$-analyses are performed for elastic scattering, direct reaction (DR) and fusion cross sections data for the $^{6}$He+$^{209}$Bi system at near-Coulomb-barrier energies to…

Nuclear Theory · Physics 2009-11-07 B. T. Kim , W. Y. So , S. W. Hong , T. Udagawa

In a recent paper, Pelaez and Yndurain evaluate some of the low energy observables of pi pi scattering and obtain flat disagreement with our earlier results. The authors work with unsubtracted dispersion relations, so that their results are…

High Energy Physics - Phenomenology · Physics 2009-11-10 I. Caprini , G. Colangelo , J. Gasser , H. Leutwyler

A simple application of Regge theory, with 9 free parameters, provides a good fit to elastic scattering data at small t from 13.76 GeV to 13 TeV. It yields a value for rho, the ratio of the real part of the forward amplitude to its…

High Energy Physics - Phenomenology · Physics 2019-10-16 A Donnachie , P V Landshoff

Integral and derivative dispersion relations (DR) are considered for the $pp$ and $\bar pp$ forward scattering amplitudes. A new representation for the derivative DR, valid at lower energies than the standard one, is obtained. The data on…

High Energy Physics - Phenomenology · Physics 2007-05-23 J. R. Cudell , E. Martynov , O. V. Selyugin

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…

High Energy Physics - Phenomenology · Physics 2009-01-07 R. F. Avila , S. D. Campos , M. J. Menon , J. Montanha

A precise analysis of the pp elastic scattering data at 7 TeV in terms of its amplitudes is performed as an extension of previous studies for lower energies. Slopes $B_{R}$ and $B_{I}$ of the real and imaginary amplitudes are independent…

High Energy Physics - Phenomenology · Physics 2013-01-15 E. Ferreira , T. Kodama , A. K. Kohara

[Background] The electromagnetic form factors of the proton measured by unpolarized and polarized electron scattering experiments show a significant disagreement that grows with the squared four momentum transfer ($Q^{2}$). Calculations…

Nuclear Experiment · Physics 2017-06-20 D. Rimal , D. Adikaram , B. A. Raue , L. B. Weinstein , J. Arrington , W. K. Brooks , M. Ungaro , K. P. Adhikari , Z. Akbar , S. Anefalos Pereira , R. A. Badui , J. Ball , N. A. Baltzell , M. Battaglieri , V. Batourine , I. Bedlinskiy , R. P. Bennett , A. S. Biselli , S. Boiarinov , W. J. Briscoe , S. Bültmann , D. S. Carman , A. Celentano , T. Chetry , G. Ciullo , L. Clark , L. Colaneri , P. L. Cole , N. Compton , M. Contalbrigo , O. Cortes , V. Crede , A. D'Angelo , N. Dashyan , R. De Vita , A. Deur , C. Djalali , R. Dupre , H. Egiyan , A. El Alaoui , L. El Fassi , P. Eugenio , G. Fedotov , R. Fersch , A. Filippi , J. A. Fleming , T. A. Forest , A. Fradi , N. Gevorgyan , Y. Ghandilyan , G. P. Gilfoyle , K. L. Giovanetti , F. X. Girod , C. Gleason , W. Gohn , E. Golovatch , R. W. Gothe , K. A. Griffioen , L. Guo , K. Hafidi , C. Hanretty , N. Harrison , M. Hattawy , D. Heddle , K. Hicks , M. Holtrop , S. M. Hughes , Y. Ilieva , D. G. Ireland , B. S. Ishkhanov , E. L. Isupov , D. Jenkins , H. Jiang , S. Joosten , D. Keller , P. Khetarpal , G. Khachatryan , M. Khandaker , W. Kim , A. Klein , F. J. Klein , V. Kubarovsky , S. E. Kuhn , S. V. Kuleshov , L. Lanza , P. Lenisa , K. Livingston , H. Y. Lu , I . J . D. MacGregor , N. Markov , B. McKinnon , M. D. Mestayer , M. Mirazita , V. Mokeev , A Movsisyan , E. Munevar , C. Munoz Camacho , P. Nadel-Turonski , A. Ni , S. Niccolai , G. Niculescu , I. Niculescu , M. Osipenko , A. I. Ostrovidov , M. Paolone , R. Paremuzyan , K. Park , E. Pasyuk , W. Phelps , S. Pisano , O. Pogorelko , J. W. Price , Y. Prok , D. Protopopescu , A. J. R. Puckett , A. Rizzo , G. Rosner , P. Rossi , P. Roy , F. Sabatié , C. Salgado , R. A. Schumacher , E. Seder , Y. G. Sharabian , Iu. Skorodumina , G. D. Smith , D. Sokhan , N. Sparveris , Ivana Stankovic , S. Stepanyan , S. Strauch , V. Sytnik , M. Taiuti , B. Torayev , H. Voskanyan , E. Voutier , N. K. Walford , D. P. Watts , X. Wei , M. H. Wood , N. Zachariou , L. Zana , J. Zhang , Z. W. Zhao , I. Zonta

We investigate $\gamma p \to K^{*+} \Lambda$ reaction within a Regge approach. For the gauge invariance of the scattering amplitude, we reggeize the s-channel and contact term amplitudes as well as the $t$-channel amplitude. We obtain the…

High Energy Physics - Phenomenology · Physics 2014-11-20 S. Ozaki , H. Nagahiro , A. Hosaka

This note highlights the predictive power of the 3-component Pomeron model designed by the authors ten years ago with a partial account of the multiplicity of Pomerons in QCD. The model is put to the test by comparing its predictions with…

High Energy Physics - Phenomenology · Physics 2015-06-12 V. A. Petrov , A. Prokudin

The recent experimental data obtained by the OBELIX group on total $\bar{p}p$ annihilation cross section are analysed; the low energy spin averaged parameters of the $\bar{p}p$ scattering amplitude (the imaginary parts of the S-wave…

Nuclear Theory · Physics 2009-10-31 J. Carbonell , K. V. Protasov , A. Zenoni

Using a simple eikonal approach to the treatment of Coulomb-nuclear interference and form-factors effects and taking into account the curvature effects in high-energy $pp$ and $\bar{p}p$ scattering, we determine the basic parameters $B$,…

High Energy Physics - Phenomenology · Physics 2023-05-24 Phuoc Ha
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