Results 41 to 50 of about 27,754 (198)

Neutral Pion Photoproduction on Nuclei in Baryon Chiral Perturbation Theory [PDF]

, 1995
Threshold neutral pion photoproduction on light nuclei is studied in the framework of baryon chiral perturbation theory. We obtain a general formula for the electric dipole amplitude in the special case of neutral pion photoproduction on a nucleus.
A.M. Bernstein, C. Ordó nez, C. Ordó nez, C. Y. Lee, D. Drechsel, E. Jenkins, E. Mazzucato, G. Fäldt, G. Meissner, H. Georgi, H.W.L. Naus, I.A. Vainshtein, I.A. Vainshtein, J.H. Koch, M. Rho, P. Argan, P. Argan, P. Bosted, P. de Baenst, R. Beck, R. Machleidt, S. R. Beane, S. Scherer, S. Weinberg, S. Weinberg, S. Weinberg, S. Weinberg, S.S. Kamalov, T. S. Park, U. van Kolck, U. van Kolck, V. Bernard, V. Bernard, V. Bernard   +33 more
core   +3 more sources

Combined analysis of K−p reactions and πΣ photoproduction data [PDF]

EPJ Web of Conferences
We discuss results of a simultaneous fit to the K−p reactions and πΣ photoproduction data employing an approach that combines tree level photoproduction amplitudes with πΣ − KN coupled channel model describing the meson-baryon rescattering in the final ...
Cieplý Aleš, Bruns Peter C.
doaj   +1 more source

Real photons produced from photoproduction in $pp$ collisions

, 2012
We calculate the production of real photons originating from the photoproduction in relativistic $pp$ collisions. The Weizs$\ddot{\mathrm{a}}$cker-Williams approximation in the photoproduction is considered.
Baur G, Field R D, Fu Y P, Fu Y P, Fu Y P, Yong-Ping Fu, Yun-De Li   +6 more
core   +1 more source

Direct vs. final state tensor meson photoproduction - amplitude analysis

EPJ Web of Conferences, 2014
Tensor meson photoproduction is described as either a direct production process or a consequence of the final state ππ interactions. We calculate the mass distributions for selected partial waves and confront our predictions with the measurements of the ...
Bibrzycki Łukasz, Kamiński Robert
doaj   +1 more source

Photon beam asymmetry Σ for η and η′ photoproduction from the proton

Physics Letters B, 2017
Measurements of the linearly-polarized photon beam asymmetry Σ for photoproduction from the proton of η and η′ mesons are reported. A linearly-polarized tagged photon beam produced by coherent bremsstrahlung was incident on a cryogenic hydrogen target ...
P. Collins, B.G. Ritchie, M. Dugger, A.V. Anisovich, M. Döring, E. Klempt, V.A. Nikonov, D. Rönchen, D. Sadasivan, A. Sarantsev, K.P. Adhikari, Z. Akbar, M.J. Amaryan, S. Anefalos Pereira, H. Avakian, J. Ball, I. Balossino, M. Bashkanov, M. Battaglieri, I. Bedlinskiy, A.S. Biselli, W.J. Briscoe, W.K. Brooks, V.D. Burkert, Frank Thanh Cao, D.S. Carman, A. Celentano, S. Chandavar, G. Charles, 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, E. De Sanctis, A. Deur, C. Djalali, R. Dupre, H. Egiyan, A. El Alaoui, L. El Fassi, L. Elouadrhiri, P. Eugenio, E. Fanchini, G. Fedotov, A. Filippi, J.A. Fleming, Y. Ghandilyan, G.P. Gilfoyle, K.L. Giovanetti, F.X. Girod, D.I. Glazier, C. Gleason, E. Golovatch, R.W. Gothe, K.A. Griffioen, L. Guo, K. Hafidi, H. Hakobyan, C. Hanretty, N. Harrison, D. Heddle, K. Hicks, M. Holtrop, S.M. Hughes, Y. Ilieva, D.G. Ireland, B.S. Ishkhanov, E.L. Isupov, D. Jenkins, H.S. Jo, S. Joosten, D. Keller, G. Khachatryan, M. Khachatryan, M. Khandaker, A. Kim, W. Kim, A. Klein, F.J. Klein, V. Kubarovsky, L. Lanza, P. Lenisa, K. Livingston, I.J.D. MacGregor, N. Markov, B. McKinnon, C.A. Meyer, M. Mirazita, V. Mokeev, R.A. Montgomery, A. Movsisyan, C. Munoz Camacho, G. Murdoch, P. Nadel-Turonski, 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, B.A. Raue, M. Ripani, A. Rizzo, G. Rosner, P. Roy, F. Sabatié, C. Salgado, R.A. Schumacher, Y.G. Sharabian, Iu. Skorodumina, G.D. Smith, D. Sokhan, N. Sparveris, S. Stepanyan, I.I. Strakovsky, S. Strauch, M. Taiuti, Ye Tian, B. Torayev, M. Ungaro, H. Voskanyan, E. Voutier, N.K. Walford, X. Wei, N. Zachariou, J. Zhang   +142 more
doaj   +1 more source

Photoproduction of P-wave doubly charmed baryon at future e + e − collider

Journal of High Energy Physics, 2023
The photoproduction of P-wave doubly charmed baryon (Ξ cc ) is investigated in the context of future high-energy and high-luminosity e + e − colliders. The direct photoproduction via the sub-process γ + γ → Ξ cc + c ¯ + c ¯ $$ \gamma +\gamma \to {\Xi}_ ...
Xi-Jie Zhan, Xing-Gang Wu, Xu-Chang Zheng   +2 more
doaj   +1 more source

Extracting the f0(980) signal from the photoproduced π+ π- spectrum

EPJ Web of Conferences, 2012
We present a phenomenological analysis of the π+π- photoproduction data obtained by the CLAS collaboration at the Thomas Jefferson Laboratory. A special emphasis is put on the interference pattern observed in the moments of angular distribution for the π+
Leśniak Leonard, Bibrzycki Łukasz
doaj   +1 more source

Pentaquark photoproduction

Journal of Physics: Conference Series, 2017
We present results and suggestions on how to confirm the existence and resonant nature of the $Pc(4450)$ detected at LHCb through photoproduction experiments. We find that this narrow structure might have escaped detection in past experiments and use those to give a constraint for the upper limit of the branching ratio/coupling to the $J/ p$ channel.
Fernandez-Ramirez C., Hiller Bin A. N., Pilloni A.   +2 more
openaire   +2 more sources

Azimuthal correlations in photoproduction and deep inelastic ep scattering at HERA

Journal of High Energy Physics, 2021
Collective behaviour of final-state hadrons, and multiparton interactions are studied in high-multiplicity ep scattering at a centre-of-mass energy s $$ \sqrt{s} $$ = 318 GeV with the ZEUS detector at HERA.
The ZEUS collaboration, I. Abt, R. Aggarwal, V. Aushev, O. Behnke, A. Bertolin, I. Bloch, I. Brock, N. H. Brook, R. Brugnera, A. Bruni, P. J. Bussey, A. Caldwell, C. D. Catterall, J. Chwastowski, J. Ciborowski, R. Ciesielski, A. M. Cooper-Sarkar, M. Corradi, R. K. Dementiev, S. Dusini, J. Ferrando, S. Floerchinger, B. Foster, E. Gallo, D. Gangadharan, A. Garfagnini, A. Geiser, L. K. Gladilin, Yu. A. Golubkov, G. Grzelak, C. Gwenlan, D. Hochman, N. Z. Jomhari, I. Kadenko, U. Karshon, P. Kaur, R. Klanner, U. Klein, I. A. Korzhavina, N. Kovalchuk, M. Kuze, B. B. Levchenko, A. Levy, B. Löhr, E. Lohrmann, A. Longhin, F. Lorkowski, O. Yu. Lukina, I. Makarenko, J. Malka, S. Masciocchi, K. Nagano, J. D. Nam, J. Onderwaater, Yu. Onishchuk, E. Paul, I. Pidhurskyi, A. Polini, M. Przybycień, A. Quintero, M. Ruspa, U. Schneekloth, T. Schörner-Sadenius, I. Selyuzhenkov, M. Shchedrolosiev, L. M. Shcheglova, I. O. Skillicorn, W. Słomiński, A. Solano, L. Stanco, N. Stefaniuk, B. Surrow, K. Tokushuku, O. Turkot, T. Tymieniecka, A. Verbytskyi, W. A. T. Wan Abdullah, K. Wichmann, M. Wing, S. Yamada, Y. Yamazaki, A. F. Żarnecki, O. Zenaiev   +83 more
doaj   +1 more source

Multipole Amplitudes of Pion Photoproduction on Nucleons up to 2GeV within Dispersion Relations and Unitary Isobar Model

, 2002
Two approaches for analysis of pion photo- and electroproduction on nucleons in the resonance energy region are checked at $Q^2=0$ using the results of GWU(VPI) partial-wave analysis of photoproduction data.
A.A. Logunov, D. Drechsel, D. Schwela, D. Schwela, I. G. Aznauryan, I.G. Aznauryan, I.G. Aznauryan, K. Joo, K.M. Watson, M. Gidal, M. Gidal, M.K. Jones, P. Bosted, R.A. Arndt, R.A. Arndt, R.A. Arndt, R.C.E. Devenish, R.C.E. Devenish, R.D. Peccei, R.L. Crawford, R.L. Walker, R.M. Davidson, S. Weinberg, S. Weinberg, S.S. Kamalov, V.V. Frolov   +25 more
core   +1 more source