Measurement of the inclusive e ± p scattering cross section at high inelasticity y and of the structure function F L

Aaron, F. D.; Alexa, C.; Andreev, V.; Backović, S.; Baghdasaryan, A.; Baghdasaryan, S.; Barrelet, E.; Bartel, W.; Behrend, O.; Belov, Pavel A.; Begzsuren, K.; Belousov, A.; Bizot, J.C.; Boudry, V.; Božović-Jelisavc̆ić, I.; Braciník, J.; Brandt, G.; Brinkmann, Martin; Brisson, V.; Britzger, D.; Bruncko, D.; Bunyatyan, A.; Buschhorn, G.; Bylinkin, A.; Bystritskaya, L.; Campbell, A.; Avila, K. B. Cantun; Ceccopieri, Federico Alberto; C̆erný, K.; Černý, V.; Chekelian, V.; Cholewa, A.; Contreras, J. G.; Coughlan, J. A.; Cvach, J.; Dainton, J. B.; Daum, K.; Delcourt, B.; Delvax, J.; Wolf, E. A. De; Diaconu, C.; Dobre, M.; Dodonov, V.; Dossanov, A.; Dubak, A.; Eckerlin, G.; Egli, S.; Eliseev, A.; Elsen, E.; Favart, L.; Fedotov, A.; Felst, R.; Feltesse, J.; Ferencei, J.; Fischer, D.; Fleischer, M.; Fomenko, A.; Gabathuler, E.; Gayler, J.; Ghazaryan, S.; Glazov, A.; Goerlich, L.; Gogitidze, N.; Gouzevitch, M.; Grab, C.; Grebenyuk, A.; Greenshaw, T.; Grell, B. R.; Grindhammer, G.; Habib, S.; Haidt, D.; Helebrant, C.; Henderson, R. C. W.; Hennekemper, E.; Henschel, H.; Herbst, M.; Herrera, G.; Hildebrandt, M.; Hiller, K. H.; Hoffmann, D.; Horisberger, R.; Hreus, T.; Huber, Florian; Jacquet, M.; Janssen, X.; Jönsson, L.; Jung, A. W.; Jung, H.; Kapichine, M.; Katzy, J.; Kenyon, I. R.; Kiesling, C.; Klein, M.; Kleinwort, C.; Kluge, T.; Knutsson, A.; Kogler, R.; Kostka, P.; Kraemer, M.; Kretzschmar, J.; Krueger, K.; Kutak, Krzysztof; Landon, M. P. J.; Lange, W.; Laštovička-Medin, G.; Laycock, P.; Lebedev, A.; Lendermann, V.; Levonian, S.; Lipka, K.; List, B.; List, Jenny; Loktionova, N.; López-Fernández, R.; Lubimov, V.; Makankine, A.; Malinovski, E.; Marage, P.; Martyn, H. U.; Maxfield, S. J.; Mehta, A.; Meyer, Andreas Bernhard; Meyer, H.; Meyer, J.; Mikocki, S.; Milcewicz-Mika, I.; Moreau, F.; Morozov, A.; Morris, J. V.; Mozer, M. U.; Mudrinic, M.; Mueller, K.; Naumann, T.; Newman, P. R.; Niebuhr, C.; Nikiforov, A.; Nikitin, D.; Nowak, G.; Nowak, K.; Olsson, J. E.; Osman, S.; Ozerov, D.; Pahl, P.; Palichik, V.; Panagoulias, I.; Pandurović, M.; Papadopoulou, Th. D.; Pascaud, C.; Patel, G. D.; Pérez, E.; Petrukhin, A.; Pićurić, I.; Piec, S. M.; Pirumov, H.; Pitzl, D.; Plačakytė, R.; Pokorny, B.; Polifka, R.; Povh, Bogdan; Radescu, V.; Raičević, N.; Ravdandorj, T.; Reimer, P.; Rizvi, E.; Robmann, P.; Roosen, R.; Rostovtsev, A.; Rotaru, M.; Tabasco, J. E. Ruiz; Rusakov, S. V.; Šálek, D.; Sankey, D. P. C.; Sauter, M.; Sauvan, E.; Schmitt, S.; Schoeffel, L.; Schoening, A.; Schultz‐Coulon, H.‐C.; Sefkow, F.; Shtarkov, L. N.; Shushkevich, S.; Sloan, T.; Smiljanić, I.; Soloviev, Y.; Sopicki, P.; South, D.; Spaskov, V.; Specka, A.; Staykova, Z.; Steder, M.; Stella, B.; Stoicea, G.; Straumann, U.; Sýkora, T.; Thompson, P. D.; Toll, T.; Tran, T. H.; Traynor, D.; Truoel, P.; Tsakov, I.; Tseepeldorj, B.; Tsurin, I.; Turnau, J.; Urban, K.; Valkárová, A.; Vallée, C.; Mechelen, P. Van; Vargas, A.; Vazdik, Y.; Driesch, M. von den; Wegener, D.; Wuensch, E.; Žáček, J.; Zálešâk, J.; Zhang, Zhiqing Philippe; Zhokin, A.; Zohrabyan, H.; Zomer, F.

doi:10.1140/epjc/s10052-011-1579-4

Cited by 129 publications

(72 citation statements)

References 61 publications

Supporting

Mentioning

Contrasting

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“…In NNPDF3.0, several new datasets have been included. First, we have included all relevant inclusive cross section measurements from HERA Run II [51][52][53][54]. This includes the complete set of inclusive measurements from H1 and ZEUS, as well as new H1 data at low Q 2 and high-y.…”

Section: Jhep04(2015)040mentioning

confidence: 99%

“…We begin with the new deep-inelastic scattering data. In this work we have supplemented the combined HERA-I dataset with the inclusion of all the relevant HERA-II inclusive cross sections measurements from H1 and ZEUS [51][52][53][54]. These data improve the statistical and systematic precision of medium-and high-Q 2 data from the HERA-I run, and thus provide valuable information for quarks at medium and large x.…”

Section: New Experimental Data In Nnpdf30mentioning

confidence: 99%

“…These data, taken at the default proton beam energy of E p = 920 GeV used in most of the HERA-II run, have been supplemented with inclusive cross-section measurements performed at lower center-of-mass energies [52], obtained with proton beam energies of E p = 575 GeV and E p = 460 GeV. These lower-energy measurements are the same ones used to determine the longitudinal structure function F L .…”

Section: New Experimental Data In Nnpdf30mentioning

confidence: 99%

“…The tt cross-sections are new in NNPDF3.0, but being total cross-sections no information on kinematics needs to be provided. In the bottom row of the table we give the number of data points in the global fit dataset, including also the DIS numbers from Table 1. we also include the the high-inelasticity data that H1 extracted from their Run II measurements [52]. From the ZEUS experiment, in NNPDF2.3 we already included some HERA-II data [33,34], for neutral-and charged-current DIS with an electron beam.…”

Section: New Experimental Data In Nnpdf30mentioning

confidence: 99%

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Parton distributions for the LHC run II

Ball

Bertone

Carrazza

et al. 2015

J. High Energ. Phys.

2,004

1,814

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We present NNPDF3.0, the first set of parton distribution functions (PDFs) determined with a methodology validated by a closure test. NNPDF3.0 uses a global dataset including HERA-II deep-inelastic inclusive cross-sections, the combined HERA charm data, jet production from ATLAS and CMS, vector boson rapidity and transverse momentum distributions from ATLAS, CMS and LHCb, W +c data from CMS and top quark pair production total cross sections from ATLAS and CMS. Results are based on LO, NLO and NNLO QCD theory and also include electroweak corrections. To validate our methodology, we show that PDFs determined from pseudo-data generated from a known underlying law correctly reproduce the statistical distributions expected on the basis of JHEP04(2015)040the assumed experimental uncertainties. This closure test ensures that our methodological uncertainties are negligible in comparison to the generic theoretical and experimental uncertainties of PDF determination. This enables us to determine with confidence PDFs at different perturbative orders and using a variety of experimental datasets ranging from HERA-only up to a global set including the latest LHC results, all using precisely the same validated methodology. We explore some of the phenomenological implications of our results for the upcoming 13 TeV Run of the LHC, in particular for Higgs production cross-sections.

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Section: Jhep04(2015)040mentioning

confidence: 99%

Section: New Experimental Data In Nnpdf30mentioning

confidence: 99%

Section: New Experimental Data In Nnpdf30mentioning

confidence: 99%

Section: New Experimental Data In Nnpdf30mentioning

confidence: 99%

See 2 more Smart Citations

Parton distributions for the LHC run II

Ball

Bertone

Carrazza

et al. 2015

J. High Energ. Phys.

2,004

1,814

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show abstract

“…With the "gluon 1" parametrization, used in the default CT14 fit with Q 0 = 1.3 GeV, g(x, Q 0 ) is constrained to be positive at all x; while for "gluon 2", it is allowed to be negative at the smallest x and Q, provided that the negative gluon does not lead to unphysical predictions. In the latter case, an additional theoretical constraint was enforced to ensure positivity of the longitudinal structure function F L (x, Q) measured by the H1 Collaboration [93]. The more flexible "gluon 2" parametrization results in a marginally better χ 2 with respect to the nominal CT14, or "gluon 1", at a slightly lower m…”

Section: Jhep02(2018)059mentioning

confidence: 99%

CT14 intrinsic charm parton distribution functions from CTEQ-TEA global analysis

Hou

Dulat

Gao

et al. 2018

J. High Energ. Phys.

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Abstract:We investigate the possibility of a (sizable) nonperturbative contribution to the charm parton distribution function (PDF) in a nucleon, theoretical issues arising in its interpretation, and its potential impact on LHC scattering processes. The "fitted charm" PDF obtained in various QCD analyses contains a process-dependent component that is partly traced to power-suppressed radiative contributions in DIS and is generally different at the LHC. We discuss separation of the universal component of the nonperturbative charm from the rest of the radiative contributions and estimate its magnitude in the CT14 global QCD analysis at the next-to-next-to leading order in the QCD coupling strength, including the latest experimental data from HERA and the Large Hadron Collider. Models for the nonperturbative charm PDF are examined as a function of the charm quark mass and other parameters. The prospects for testing these models in the associated production of a Z boson and a charm jet at the LHC are studied under realistic assumptions, including effects of the final-state parton showering.

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Gauge Theories and the Standard Model

Altarelli

Wells

2017

Lecture Notes in Physics

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A possible goal of fundamental physics is to reduce all natural phenomena to a set of basic laws and theories which, at least in principle, can quantitatively reproduce and predict experimental observations. At the microscopic level all the phenomenology of matter and radiation, including molecular, atomic, nuclear, and subnuclear physics, can be understood in terms of three classes of fundamental interactions: strong, electromagnetic, and weak interactions. For all material bodies on the Earth and in all geological, astrophysical, and cosmological phenomena, a fourth interaction, the gravitational force, plays a dominant role, but this remains negligible in atomic and nuclear physics. In atoms, the electrons are bound to nuclei by electromagnetic forces, and the properties of electron clouds explain the complex phenomenology of atoms and molecules. Light is a particular vibration of electric and magnetic fields (an electromagnetic wave). Strong interactions bind the protons and neutrons together in nuclei, being so strongly attractive at short distances that they prevail over the electric repulsion due to the like charges of protons. Protons and neutrons, in turn, are composites of three quarks held together by strong interactions occur between quarks and gluons (hence these particles are called "hadrons" from the Greek word for "strong"). The weak interactions are responsible for the beta radioactivity that makes some nuclei unstable, as well as the nuclear reactions that produce the enormous energy radiated by the stars, and in particular by our Sun. The weak interactions also cause the disintegration of the neutron, the charged pions, and the lightest hadronic particles with strangeness, charm, and beauty (which are "flavour" quantum numbers), as well as the decay of the top quark and the heavy charged leptons (the muon and the tau £ ). In addition, all observed neutrino interactions are due to these weak forces.All these interactions (with the possible exception of gravity) are described within the framework of quantum mechanics and relativity, more precisely by a local relativistic quantum field theory. To each particle, treated as pointlike, is associated

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Measurement of the inclusive e ± p scattering cross section at high inelasticity y and of the structure function F L

Abstract: A measurement is presented of the inclusive neutral current e ± p scattering cross section using data collected by the H1 experiment at HERA during the years 2003 to 2007 with proton beam energies E p of 920, 575, and 460 GeV. The kinematic range of the measurement covers

Cited by 129 publications

References 61 publications

Parton distributions for the LHC run II

Parton distributions for the LHC run II

CT14 intrinsic charm parton distribution functions from CTEQ-TEA global analysis

Gauge Theories and the Standard Model

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