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  • The X/gamma-ray correlation in NGC 4945 and the nature of its gamma-ray source 

    Wojaczyński, Rafał; Niedźwiecki, Andrzej (IOP Publishing for the American Astronomical Society, 2017)
    We report hints for the correlation between the X-ray and gamma-ray emission in the nearby galaxy NGC 4945, which harbors both an active galactic nucleus and a nuclear starburst region. We have divided the Fermi/LAT ...
  • Generalized Niederer’s transformation for quantum Pais–Uhlenbeck oscillator 

    Andrzejewski, Krzysztof (Elsevier B.V., 2015)
    We extend, to the quantum domain, the results obtained in [Nucl. Phys. B 885 (2014) 150] and [Phys. Lett. B 738 (2014) 405] concerning Niederer’s transformation for the Pais–Uhlenbeck oscillator. Namely, the quantum ...
  • Elastic scattering in geometrical model 

    Plebaniak, Zbigniew; Wibig, Tadeusz (Elsevier B.V., 2016)
    The experimental data on proton–proton elastic and inelastic scattering emerging from the measurements at the Large Hadron Collider, calls for an efficient model to fit the data. We have examined the optical, geometrical ...
  • β decay of 6He into the α+d continuum 

    Pfutzner, M.; Dominik, W.; Janas, Z.; Mazzocchi, C.; Pomorski, M.; Bezbakh, A. A.; Borge, M. J. G.; Chrapkiewicz, K.; Chudoba, V.; Frederickx, R.; Kaminski, G.; Kowalska, M.; Krupko, S.; Kuich, M.; Kurcewicz, J.; Lis, A. A.; Lund, M. V.; Miernik, K.; Perkowski, J.; Raabe, R.; Randisi, G.; Riisager, K.; Sambi, S.; Tengblad, O.; Wenander, F. (American Physical Society, 2015)
    The rare β-decay channel of 6He into the α+d continuum was investigated at the REX-ISOLDE facility. Bunches of postaccelerated 6He ions were implanted into the optical time projection chamber (OTPC), where the decays with ...
  • Search for patterns by combining cosmic-ray energy and arrival directions at the Pierre Auger Observatory 

    Aab, A.; Abreu, P.; Aglietta, M.; Giller, Maria; Śmiałkowski, Andrzej; Szadkowski, Zbigniew; Winchen, T. (Springer Berlin Heidelberg, 2014)
    Energy-dependent patterns in the arrival directions of cosmic rays are searched for using data of the Pierre Auger Observatory. We investigate local regions around the highest-energy cosmic rays with E≥6×10^19 eV by ...
  • Photoproduction of isolated photons, inclusively and with a jet, at HERA 

    Abramowicz, H.; Abt, I.; Adamczyk, L.; Ciborowski, J.; Perlański, W. (Elsevier B.V., 2014)
    The photoproduction of isolated photons, both inclusive and together with a jet, has been measured with the ZEUS detector at HERA using an integrated luminosity of 374 pb^{−1}. Differential cross sections are presented in ...
  • Erratum: Measurement of D^{∗±} production in deep inelastic scattering at HERA 

    Abramowicz, H.; Abt, I.; Adamczyk, L.; Ciborowski, J.; Perlanski, W. (Springer Berlin Heidelberg, 2014)
    In the analysis for our paper on D* production, the beauty contribution was erroneously subtracted twice in the extraction of the reduced cross sections. This affected tables 9 and 10 as well as figures 9 and 10 that ...
  • Further studies of the photoproduction of isolated photons with a jet at HERA 

    Abramowicz, H.; Abt, I.; Adamczyk, L.; Ciborowski, J.; Perlanski, W. (Springer Science+Business Media on behalf of the Scuola Internazionale Superiore di Studi Avanzati, 2014)
    In this extended analysis using the ZEUS detector at HERA, the photoproduction of isolated photons together with a jet is measured for different ranges of the fractional photon energy, x_γ^{meas}, contributing to the ...
  • Weak n-Ary Relational Products in Allegories 

    Zieliński, Bartosz; Maślanka, Paweł (MDPI AG, 2014)
    Allegories are enriched categories generalizing a category of sets and binary relations. Accordingly, relational products in an allegory can be viewed as a generalization of Cartesian products. There are several definitions ...
  • Measurement of beauty and charm production in deep inelastic scattering at HERA and measurement of the beauty-quark mass 

    Abramowicz, H.; Abt, I.; Adamczyk, L.; Ciborowski, J.; Perlanski, W. (Springer Science+Business Media on behalf of the Scuola Internazionale Superiore di Studi Avanzati, 2014)
    The production of beauty and charm quarks in ep interactions has been studied with the ZEUS detector at HERA for exchanged four-momentum squared 5 < Q^2 < 1000 GeV^2 using an integrated luminosity of 354 pb^{−1}. The ...
  • Modalities for an Allegorical Conceptual Data Model 

    Zielińsk, Bartosz; Maślanka, Paweł; Sobieski, Ścibor (MDPI AG, 2014)
    Allegories are enriched categories generalizing a category of sets and binary relations. In this paper, we extend a new, recently-introduced conceptual data model based on allegories by adding support for modal operators ...
  • Hamiltonian formalisms and symmetries of the Pais–Uhlenbeck oscillator 

    Andrzejewski, Krzysztof (Elsevier B.V., 2014)
    The study of the symmetry of Pais–Uhlenbeck oscillator initiated in Andrzejewski et al. (2014) [24] is continued with special emphasis put on the Hamiltonian formalism. The symmetry generators within the original Pais and ...
  • Conformal Newton–Hooke algebras, Niederer's transformation and Pais–Uhlenbeck oscillator 

    Andrzejewski, Krzysztof (Elsevier B.V., 2014)
    Dynamical systems invariant under the action of the l-conformal Newton–Hooke algebras are constructed by the method of nonlinear realizations. The relevant first order Lagrangians together with the corresponding Hamiltonians ...
  • Constrains for non-standard statistical models of particle creations by identified hadron multiplicity results at LHC energies 

    Wibig, T (Springer Berlin Heidelberg, 2014)
    We analyzed the identified hadron multiplicity predictions of the modified thermodynamical model of the multiparticle production processes with non-extensive statistic. The replacement of the standard Boltzmann exponential ...
  • Thermal induced structural and magnetic transformations in Fe_{73.5−x}Ce_{x=0,3,5,7}Si_{13.5}B_9Nb_3Cu_1 amorphous alloy 

    Antoszewska, Małgorzata; Wasiak, Michał; Gwizdałła, Tomasz; Sovak, Pavol; Moneta, Marek (Springer Netherlands, 2013)
    Structural and magnetic properties of amorphous and partly crystallized Fe_{73.5−x}Ce_{x=0,3,5,7}Si_{13.5}B_9Nb_3Cu_1 alloys, were analysed in the temperature ranging from RT to 800 °C with scanning calorimetry and ...
  • Ultrahigh Energy Neutrinos at the Pierre Auger Observatory 

    Abreu, P.; Ahlers, M.; Aglietta, M.; Ahn, E. J.; Albuquerque, I. F. M.; Allard, D.; Allekotte, I.; Allen, J.; Allison, P.; Almela, A.; Alvarez Castillo, J.; Alvarez-Muñiz, J.; Alves Batista, R.; Ambrosio, M.,; Aminaei, A.,; Anchordoqui, L.,; Andringa, S.,; Anticić, T.; Aramo, C.; Arganda, E.,; Arqueros, F.; Asorey, H.; Assis, P.; Aublin, J.; Ave, M.; Avenier, M.; Avila, G.; Bäcker, T.; Badescu, A. M.; Balzer, M.; Barber, K. B.; Barbosa, A. F.; Bardenet, R.; Barroso, S. L. C.; Baughman, B.; Bäuml, J.; Beatty, J. J.; Becker, B. R.; Becker, K. H.; Bellétoile, A.; Bellido, J. A.; BenZvi, S.; Berat, C.; Bertou, X.; Biermann, P. L.; Billoir, P.; Blanco, F.; Blanco, M.; Bleve, C.; Blümer, H.; Boháčová, M.; Boncioli, D.; Bonifazi, C.; Bonino, R.; Borodai, N.; Brack, J.; Brancus, I.; Brogueira, P.; Brown, W. C.; Bruijn, R.; Buchholz, P.; Bueno, A.; Burton, R. E.; Giller, M.; Śmiałkowski, A.; Szadkowski, Z. (Hindawi Publishing Corporation, 2012-06-25)
    The observation of ultrahigh energy neutrinos (UHE𝜈�s) has become a priority in experimental astroparticle physics. UHE𝜈�s can be detected with a variety of techniques. In particular, neutrinos can interact in the ...
  • Semientwining Structures and Their Applications 

    Nichita, Florin F.; Parashar, Deepak; Zieliński, Bartosz (Hindawi Publishing Corporation, 2012-10-31)
    Semientwining structures are proposed as concepts simpler than entwining structures, yet they are shown to have interesting applications in constructing intertwining operators and braided algebras, lifting functors, ...
  • Chiral fermions, massless particles and Poincare covariance 

    Andrzejewski, Krzysztof; Kijanka-Dec, Agnieszka; Kosiński, Piotr; Maślanka, Paweł (Elsevier, 2015-05-19)
    The coadjoint orbit method is applied to the construction of Hamiltonian dynamics of massless particles of arbitrary helicity. The unusual transformation properties of canonical variables are interpreted in terms of nonlinear ...
  • Modification of thin films induced by slow heavy ions analysed with PIXE and SRIM 

    Antoszewska-Moneta, Malgorzata; Brzozowski, Romuald; Moneta, Marek (Springer, 2015-03-17)
    In the present work the particle induced X-rays (PIXE) emitted during interaction of inert and active slow heavy (HI) ions with specially prepared thin films were measured. Kinematics of the interaction was simulated ...
  • Induced gravity and gauge interactions revisited 

    Broda, Bogusław; Szanecki, Michał (North-Holland, 2009)
    It has been shown that the primary, old-fashioned idea of Sakharov's induced gravity and gauge interactions, in the “one-loop dominance” version, works astonishingly well yielding phenomenologically reasonable results. As ...

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