2 research outputs found
Parton distribution functions at LO, NLO and NNLO with correlated uncertainties between orders
- Author
- Belov P.(DESY, Hamburg, Germany)
- Britzger D.(DESY, Hamburg, Germany)
- Camarda S.(DESY, Hamburg, Germany)
- Cooper-Sarkar A. M.(Department of Physics, University of Oxford, Oxford, UK)
- Diaconu C.(CPPM, IN2P3-CNRS, Univ. Mediterranee, Marseille, France)
- Feltesse J.(CEA, DSM/Irfu, CE-Saclay, Gif-sur-Yvette, France)
- Gizhko A.(DESY, Hamburg, Germany)
- Glazov A.(DESY, Hamburg, Germany)
- Kolesnikov V.(Joint Institute for Nuclear Research (JINR), Joliot-Curie 6, 141980 , Dubna, Moscow Region, Russia)
- Lisovyi M.(DESY, Hamburg, Germany)
- Lohwasser K.(DESY, Platanenallee 6, 15738 , Zeuthen, Germany)
- Luszczak A.(T. Kosciuszko Cracow University of Technology, Kraków, Poland)
- Myronenko V.(DESY, Hamburg, Germany)
- Pirumov H.(DESY, Hamburg, Germany)
- Plačakytė R.(DESY, Hamburg, Germany)
- Rabbertz K.(Institut für Experimentelle Kernphysik, Karlsruhe, Germany)
- Radescu V.(DESY, Hamburg, Germany)
- Sapronov A.(Joint Institute for Nuclear Research (JINR), Joliot-Curie 6, 141980 , Dubna, Moscow Region, Russia)
- Schöning A.(Physikalisches Institut, Universität Heidelberg, Heidelberg, Germany)
- Shushkevich S.(DESY, Hamburg, Germany)
- Slominski W.(Institute of Physics, Jagiellonian University, Ul. Reymonta 4, 30-059 , Kraków, Poland)
- Starovoitov P.(DESY, Hamburg, Germany)
- Sutton M.(Department of Physics and Astronomy, Sussex House, University of Sussex, BN1 9RH, Brighton, UK)
- Tomaszewska J.(Faculty of Physics, Warsaw University of Technology, Koszykowa 75, 00-662 , Warsaw, Poland)
- Turkot O.(DESY, Hamburg, Germany)
- Watt G.(Institute for Particle Physics Phenomenology, Durham University, DH1 3LE, Durham, UK)
- Wichmann K.(DESY, Hamburg, Germany)
- Publication venue
- Publication date
- 17/10/2014
- Field of study
Sets of parton distribution functions (PDFs) of the proton are reported for the leading (LO), next-to-leading (NLO) and next-to-next-to-leading-order (NNLO) QCD calculations. The parton distribution functions are determined with the HERAFitter program using the data from the HERA experiments and preserving correlations between uncertainties for the LO, NLO and NNLO PDF sets. The sets are used to study cross-section ratios and their uncertainties when calculated at different orders in QCD. A reduction of the overall theoretical uncertainty is observed if correlations between the PDF sets are taken into account for the ratio of WW di-boson to Z boson production cross sections at the LHC
Measurement of D ∗ photoproduction at three different centre-of-mass energies at HERA
- Author
- Abramowicz H.Raymond and Beverly Sackler Faculty of Exact Sciences, School of Physics, Tel Aviv University, Tel Aviv, Israel
- Abt I.(Max-Planck-Institut für Physik, München, Germany)
- Adamczyk L.(AGH-University of Science and Technology, Faculty of Physics and Applied Computer Science, Krakow, Poland)
- Adamus M.(National Centre for Nuclear Research, Warsaw, Poland)
- Aggarwal R.(Panjab University, Department of Physics, Chandigarh, India)
- Antonelli S.(University and INFN Bologna, Bologna, Italy)
- Arslan O.(Physikalisches Institut der Universität Bonn, Bonn, Germany)
- Aushev V.(Institute for Nuclear Research, National Academy of Sciences, Kyiv, Ukraine)
- Aushev Y.(Department of Nuclear Physics, National Taras Shevchenko University of Kyiv, Kyiv, Ukraine)
- Bachynska O.(Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany)
- Barakbaev A.(Institute of Physics and Technology of Ministry of Education and Science of Kazakhstan, Almaty, Kazakhstan)
- Bartosik N.(Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany)
- Behnke O.(Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany)
- Behr J.(Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany)
- Behrens U.(Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany)
- Bertolin A.(INFN Padova, Padova, Italy)
- Bhadra S.(Department of Physics, York University, Ontario, Canada, M3J 1P3)
- Bloch I.(Deutsches Elektronen-Synchrotron DESY, Zeuthen, Germany)
- Bokhonov V.(Institute for Nuclear Research, National Academy of Sciences, Kyiv, Ukraine)
- Boos E.(Institute of Physics and Technology of Ministry of Education and Science of Kazakhstan, Almaty, Kazakhstan)
- Borras K.(Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany)
- Brock I.(Physikalisches Institut der Universität Bonn, Bonn, Germany)
- Brugnera R.(Dipartimento di Fisica dell’ Università and INFN, Padova, Italy)
- Bruni A.(INFN Bologna, Bologna, Italy)
- Brzozowska B.(Faculty of Physics, University of Warsaw, Warsaw, Poland)
- Bussey P.(School of Physics and Astronomy, University of Glasgow, Glasgow, United Kingdom)
- Caldwell A.(Max-Planck-Institut für Physik, München, Germany)
- Capua M.(Calabria University, Physics Department and INFN, Cosenza, Italy)
- Catterall C.(Department of Physics, York University, Ontario, Canada, M3J 1P3)
- Chwastowski J.(The Henryk Niewodniczanski Institute of Nuclear Physics, Polish Academy of Sciences, Krakow, Poland)
- Ciborowski J.(Faculty of Physics, University of Warsaw, Warsaw, Poland)
- Ciesielski R.(Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany)
- Cooper-Sarkar A.(Department of Physics, University of Oxford, Oxford, United Kingdom)
- Corradi M.(INFN Bologna, Bologna, Italy)
- Corriveau F.(Department of Physics, McGill University, Montréal, Québec, Canada, H3A 2T8)
- Dementiev R.(Lomonosov Moscow State University, Skobeltsyn Institute of Nuclear Physics, Moscow, Russia)
- Devenish R.(Department of Physics, University of Oxford, Oxford, United Kingdom)
- Dolinska G.(Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany)
- Drugakov V.(Deutsches Elektronen-Synchrotron DESY, Zeuthen, Germany)
- Dusini S.(INFN Padova, Padova, Italy)
- D’Agostini G.(Dipartimento di Fisica, Università ‘La Sapienza’ and INFN, Rome, Italy)
- Ferrando J.(School of Physics and Astronomy, University of Glasgow, Glasgow, United Kingdom)
- Figiel J.(The Henryk Niewodniczanski Institute of Nuclear Physics, Polish Academy of Sciences, Krakow, Poland)
- Foster B.(Hamburg University, Institute of Experimental Physics, Hamburg, Germany)
- Gach G.(AGH-University of Science and Technology, Faculty of Physics and Applied Computer Science, Krakow, Poland)
- Garfagnini A.(Dipartimento di Fisica dell’ Università and INFN, Padova, Italy)
- Geiser A.(Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany)
- Gizhko A.(Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany)
- Gladilin L.(Lomonosov Moscow State University, Skobeltsyn Institute of Nuclear Physics, Moscow, Russia)
- Gogota O.(Department of Nuclear Physics, National Taras Shevchenko University of Kyiv, Kyiv, Ukraine)
- Golubkov Yu.(Lomonosov Moscow State University, Skobeltsyn Institute of Nuclear Physics, Moscow, Russia)
- Grebenyuk J.(Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany)
- Gregor I.(Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany)
- Grzelak G.(Faculty of Physics, University of Warsaw, Warsaw, Poland)
- Gueta O.(Raymond and Beverly Sackler Faculty of Exact Sciences, School of Physics, Tel Aviv University, Tel Aviv, Israel)
- Guzik M.(AGH-University of Science and Technology, Faculty of Physics and Applied Computer Science, Krakow, Poland)
- Hain W.(Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany)
- Hartner G.(Department of Physics, York University, Ontario, Canada, M3J 1P3)
- Hochman D.(Department of Particle Physics and Astrophysics, Weizmann Institute, Rehovot, Israel)
- Hori R.(Institute of Particle and Nuclear Studies, KEK, Tsukuba, Japan)
- Ibrahim Z.(National Centre for Particle Physics, Universiti Malaya, 50603, Kuala Lumpur, Malaysia)
- Iga Y.(Polytechnic University, Tokyo, Japan)
- Ishitsuka M.(Department of Physics, Tokyo Institute of Technology, Tokyo, Japan)
- Iudin A.(Department of Nuclear Physics, National Taras Shevchenko University of Kyiv, Kyiv, Ukraine)
- Januschek F.(Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany)
- Kadenko I.(Department of Nuclear Physics, National Taras Shevchenko University of Kyiv, Kyiv, Ukraine)
- Kananov S.(Raymond and Beverly Sackler Faculty of Exact Sciences, School of Physics, Tel Aviv University, Tel Aviv, Israel)
- Kanno T.(Department of Physics, Tokyo Institute of Technology, Tokyo, Japan)
- Karshon U.(Department of Particle Physics and Astrophysics, Weizmann Institute, Rehovot, Israel)
- Kaur M.(Panjab University, Department of Physics, Chandigarh, India)
- Kaur P.(Panjab University, Department of Physics, Chandigarh, India)
- Khein L.(Lomonosov Moscow State University, Skobeltsyn Institute of Nuclear Physics, Moscow, Russia)
- Kisielewska D.(AGH-University of Science and Technology, Faculty of Physics and Applied Computer Science, Krakow, Poland)
- Klanner R.(Hamburg University, Institute of Experimental Physics, Hamburg, Germany)
- Klein U.(Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany)
- Kondrashova N.(Department of Nuclear Physics, National Taras Shevchenko University of Kyiv, Kyiv, Ukraine)
- Kononenko O.(Department of Nuclear Physics, National Taras Shevchenko University of Kyiv, Kyiv, Ukraine)
- Korol Ie.(Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany)
- Korzhavina I.(Lomonosov Moscow State University, Skobeltsyn Institute of Nuclear Physics, Moscow, Russia)
- Kotanski A.(Department of Physics, Jagellonian University, Cracow, Poland)
- Kovalchuk N.(Department of Nuclear Physics, National Taras Shevchenko University of Kyiv, Kyiv, Ukraine)
- Kowalski H.(Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany)
- Kuprash O.(Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany)
- Kuze M.(Department of Physics, Tokyo Institute of Technology, Tokyo, Japan)
- Kötz U.(Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany)
- Levchenko B.(Lomonosov Moscow State University, Skobeltsyn Institute of Nuclear Physics, Moscow, Russia)
- Levy A.(Raymond and Beverly Sackler Faculty of Exact Sciences, School of Physics, Tel Aviv University, Tel Aviv, Israel)
- Libov V.(Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany)
- Limentani S.(Dipartimento di Fisica dell’ Università and INFN, Padova, Italy)
- Lisovyi M.(Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany)
- Lobodzinska E.(Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany)
- Lohmann W.(Deutsches Elektronen-Synchrotron DESY, Zeuthen, Germany)
- Lohrmann E.(Hamburg University, Institute of Experimental Physics, Hamburg, Germany)
- Longhin A.(INFN Padova, Padova, Italy)
- Lontkovskyi D.(Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany)
- Lukina O.(Lomonosov Moscow State University, Skobeltsyn Institute of Nuclear Physics, Moscow, Russia)
- Löhr B.(Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany)
- Maeda J.(Department of Physics, Tokyo Institute of Technology, Tokyo, Japan)
- Makarenko I.(Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany)
- Malka J.(Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany)
- Martin J.(Department of Physics, University of Toronto, Toronto, Ontario, Canada, M5S 1A7)
- Mergelmeyer S.(Physikalisches Institut der Universität Bonn, Bonn, Germany)
- Mohamad Idris F.(National Centre for Particle Physics, Universiti Malaya, 50603, Kuala Lumpur, Malaysia)
- Mujkic K.(Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany)
- Myronenko V.(Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany)
- Nagano K.(Institute of Particle and Nuclear Studies, KEK, Tsukuba, Japan)
- Nigro A.(Dipartimento di Fisica, Università ‘La Sapienza’ and INFN, Rome, Italy)
- Nobe T.(Department of Physics, Tokyo Institute of Technology, Tokyo, Japan)
- Notz D.(Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany)
- Nowak R.(Faculty of Physics, University of Warsaw, Warsaw, Poland)
- Olkiewicz K.(The Henryk Niewodniczanski Institute of Nuclear Physics, Polish Academy of Sciences, Krakow, Poland)
- Onishchuk Yu.(Department of Nuclear Physics, National Taras Shevchenko University of Kyiv, Kyiv, Ukraine)
- Paul E.(Physikalisches Institut der Universität Bonn, Bonn, Germany)
- Perlanski W.(Faculty of Physics, University of Warsaw, Warsaw, Poland)
- Perrey H.(Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany)
- Pokrovskiy N.(Institute of Physics and Technology of Ministry of Education and Science of Kazakhstan, Almaty, Kazakhstan)
- Proskuryakov A.(Lomonosov Moscow State University, Skobeltsyn Institute of Nuclear Physics, Moscow, Russia)
- Przybycien M.(AGH-University of Science and Technology, Faculty of Physics and Applied Computer Science, Krakow, Poland)
- Raval A.(Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany)
- Roloff P.(Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany)
- Rubinsky I.(Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany)
- Ruspa M.(Università del Piemonte Orientale, Novara, and INFN, Torino, Italy)
- Samojlov V.(Institute of Physics and Technology of Ministry of Education and Science of Kazakhstan, Almaty, Kazakhstan)
- Saxon D.(School of Physics and Astronomy, University of Glasgow, Glasgow, United Kingdom)
- Schioppa M.(Calabria University, Physics Department and INFN, Cosenza, Italy)
- Schmidke W.(Max-Planck-Institut für Physik, München, Germany)
- Schneekloth U.(Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany)
- Schwartz J.(Department of Physics, McGill University, Montréal, Québec, Canada, H3A 2T8)
- Schörner-Sadenius T.(Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany)
- Shcheglova L.(Lomonosov Moscow State University, Skobeltsyn Institute of Nuclear Physics, Moscow, Russia)
- Shevchenko R.(Department of Nuclear Physics, National Taras Shevchenko University of Kyiv, Kyiv, Ukraine)
- Shkola O.(Department of Nuclear Physics, National Taras Shevchenko University of Kyiv, Kyiv, Ukraine)
- Singh I.(Panjab University, Department of Physics, Chandigarh, India)
- Skillicorn I.(School of Physics and Astronomy, University of Glasgow, Glasgow, United Kingdom)
- Slominski W.(Department of Physics, Jagellonian University, Cracow, Poland)
- Sola V.(Hamburg University, Institute of Experimental Physics, Hamburg, Germany)
- Solano A.(Università di Torino and INFN, Torino, Italy)
- Spiridonov A.(Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany)
- Stanco L.(INFN Padova, Padova, Italy)
- Stefaniuk N.(Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany)
- Stern A.(Raymond and Beverly Sackler Faculty of Exact Sciences, School of Physics, Tel Aviv University, Tel Aviv, Israel)
- Stewart T.(Department of Physics, University of Toronto, Toronto, Ontario, Canada, M5S 1A7)
- Stopa P.(The Henryk Niewodniczanski Institute of Nuclear Physics, Polish Academy of Sciences, Krakow, Poland)
- Sztuk-Dambietz J.(Hamburg University, Institute of Experimental Physics, Hamburg, Germany)
- Szuba D.(Hamburg University, Institute of Experimental Physics, Hamburg, Germany)
- Szuba J.(Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany)
- Tassi E.(Calabria University, Physics Department and INFN, Cosenza, Italy)
- Temiraliev T.(Institute of Physics and Technology of Ministry of Education and Science of Kazakhstan, Almaty, Kazakhstan)
- Tokushuku K.(Institute of Particle and Nuclear Studies, KEK, Tsukuba, Japan)
- Tomaszewska J.(Faculty of Physics, University of Warsaw, Warsaw, Poland)
- Trofymov A.(Department of Nuclear Physics, National Taras Shevchenko University of Kyiv, Kyiv, Ukraine)
- Trusov V.(Department of Nuclear Physics, National Taras Shevchenko University of Kyiv, Kyiv, Ukraine)
- Tsurugai T.(Meiji Gakuin University, Faculty of General Education, Yokohama, Japan)
- Turcato M.(Hamburg University, Institute of Experimental Physics, Hamburg, Germany)
- Turkot O.(Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany)
- Tymieniecka T.(National Centre for Nuclear Research, Warsaw, Poland)
- Verbytskyi A.(Max-Planck-Institut für Physik, München, Germany)
- Viazlo O.(Department of Nuclear Physics, National Taras Shevchenko University of Kyiv, Kyiv, Ukraine)
- Walczak R.(Department of Physics, University of Oxford, Oxford, United Kingdom)
- Wan Abdullah W.(National Centre for Particle Physics, Universiti Malaya, 50603, Kuala Lumpur, Malaysia)
- Wichmann K.(Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany)
- Wing M.(Physics and Astronomy Department, University College London, London, United Kingdom)
- Wolf G.(Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany)
- Yamada S.(Institute of Particle and Nuclear Studies, KEK, Tsukuba, Japan)
- Yamazaki Y.(Institute of Particle and Nuclear Studies, KEK, Tsukuba, Japan)
- Zakharchuk N.(Department of Nuclear Physics, National Taras Shevchenko University of Kyiv, Kyiv, Ukraine)
- Zawiejski L.(The Henryk Niewodniczanski Institute of Nuclear Physics, Polish Academy of Sciences, Krakow, Poland)
- Zenaiev O.(Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany)
- Zhautykov B.(Institute of Physics and Technology of Ministry of Education and Science of Kazakhstan, Almaty, Kazakhstan)
- Zhmak N.(Institute for Nuclear Research, National Academy of Sciences, Kyiv, Ukraine)
- Zotkin D.(Lomonosov Moscow State University, Skobeltsyn Institute of Nuclear Physics, Moscow, Russia)
- Żarnecki A.(Faculty of Physics, University of Warsaw, Warsaw, Poland)
- Publication venue
- Publication date
- Field of study
The photoproduction of D ∗± mesons has been measured with the ZEUS detector at HERA at three different ep centre-of-mass energies s s of 318, 251 and 225 GeV. For each data set D ∗± mesons were required to have transverse momentum p T D ∗ and pseudo-rapidity η D ∗ in the ranges 1 . 9 < p T D ∗ < 20 GeV and | η D ∗ | < 1 . 6. The events were required to have a virtuality of the incoming photon Q 2 of less than 1 GeV 2 . The dependence on s s was studied by normalising to the high-statistics measurement at s = 318 s=318 GeV. This led to the cancellation of a number of systematic effects both in data and theory. Predictions from next-to-leading-order QCD describe the s s dependence of the data well