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Abstract
Inclusive e±p single and double differential cross sections for neutral and charged current deep inelastic scattering processes are measured with the H1 detector at HERA. The data were taken at a centre-of-mass energy of GeV with a total integrated luminosity of 333.7 pb−1 shared between two lepton beam charges and two longitudinal lepton polarisation modes. The differential cross sections are measured in the range of negative four-momentum transfer squared, Q2, between 60 and 50 000 GeV2, and Bjorken x between 0.0008 and 0.65. The measurements are combined with earlier published unpolarised H1 data to improve statistical precision and used to determine the structure function . Ameasurementoftheneutralcurrentparityviolating structure function is presented for the first time. The polarisation dependence of the charged current total cross section is also measured. The new measurements are well described by a next-to-leading order QCD fit based on all published H1 inclusive cross section data which are used to extract the parton distribution functions of the proton.
Details
1 National Institute for Physics and Nuclear Engineering (NIPNE)(k), Bucharest, Romania (GRID:grid.443874.8) (ISNI:0000000094635349); University of Bucharest, Faculty of Physics, Bucharest, Romania (GRID:grid.5100.4) (ISNI:000000012322497X)
2 National Institute for Physics and Nuclear Engineering (NIPNE)(k), Bucharest, Romania (GRID:grid.443874.8) (ISNI:0000000094635349)
3 Lebedev Physical Institute, Moscow, Russia (GRID:grid.425806.d) (ISNI:0000000106566476)
4 University of Montenegro(l), Faculty of Science, Podgorica, Montenegro (GRID:grid.12316.37) (ISNI:0000000121820188)
5 Yerevan Physics Institute, Yerevan, Armenia (GRID:grid.48507.3e) (ISNI:0000000404827128)
6 Université Denis Diderot Paris 7, CNRS/IN2P3, LPNHE, Université Pierre et Marie Curie Paris 6, Paris, France (GRID:grid.4444.0) (ISNI:0000000121129282)
7 DESY, Hamburg, Germany (GRID:grid.7683.a) (ISNI:0000000404920453)
8 Institute of Physics and Technology of the Mongolian Academy of Sciences, Ulaanbaatar, Mongolia (GRID:grid.450277.3)
9 LAL, Université Paris-Sud, CNRS/IN2P3, Orsay, France (GRID:grid.4444.0) (ISNI:0000000121129282)
10 LLR, Ecole Polytechnique, CNRS/IN2P3, Palaiseau, France (GRID:grid.4444.0) (ISNI:0000000121129282)
11 University of Belgrade, Vinca Institute of Nuclear Sciences, Belgrade, Serbia (GRID:grid.7149.b) (ISNI:0000000121669385)
12 University of Birmingham(b), School of Physics and Astronomy, Birmingham, UK (GRID:grid.6572.6) (ISNI:0000000419367486)
13 Slovak Academy of Sciences(e), Institute of Experimental Physics, Košice, Slovak Republic (GRID:grid.419303.c) (ISNI:0000000121809405)
14 Max-Planck-Institut für Kernphysik, Heidelberg, Germany (GRID:grid.419604.e) (ISNI:0000000122886103); Yerevan Physics Institute, Yerevan, Armenia (GRID:grid.48507.3e) (ISNI:0000000404827128)
15 Institute for Theoretical and Experimental Physics(j), Moscow, Russia (GRID:grid.21626.31) (ISNI:0000000101258159)
16 CINVESTAV(i), Departamento de Fisica Aplicada, Mérida, México (GRID:grid.418275.d) (ISNI:0000000121658782)
17 Brussels and Universiteit Antwerpen(c), Inter-University Institute for High Energies ULB-VUB, Antwerpen, Belgium (GRID:grid.5284.b) (ISNI:0000000107903681)
18 Charles University(g), Faculty of Mathematics and Physics, Praha, Czech Republic (GRID:grid.4491.8) (ISNI:000000041937116X)
19 Max-Planck-Institut für Physik, München, Germany (GRID:grid.435824.c) (ISNI:0000000123750603)
20 STFC, Rutherford Appleton Laboratory, Didcot, UK (GRID:grid.76978.37) (ISNI:0000000122966998)
21 Institute of Physics, Academy of Sciences of the Czech Republic(g), Praha, Czech Republic (GRID:grid.424881.3) (ISNI:000000040634148X)
22 University of Liverpool(b), Department of Physics, Liverpool, UK (GRID:grid.10025.36) (ISNI:0000000419368470)
23 Fachbereich C, Universität Wuppertal, Wuppertal, Germany (GRID:grid.7787.f) (ISNI:0000000123645811); Universität Wuppertal, Rechenzentrum, Wuppertal, Germany (GRID:grid.7787.f) (ISNI:0000000123645811)
24 CPPM, Aix-Marseille Univ, CNRS/IN2P3, Marseille, France (GRID:grid.4444.0) (ISNI:0000000121129282)
25 Universität Hamburg(a), Institut für Experimentalphysik, Hamburg, Germany (GRID:grid.9026.d) (ISNI:0000000122872617); University of Toronto, Department of Physics, Toronto, Canada (GRID:grid.17063.33) (ISNI:0000 0001 2157 2938)
26 Max-Planck-Institut für Kernphysik, Heidelberg, Germany (GRID:grid.419604.e) (ISNI:0000000122886103)
27 Universität Hamburg(a), Institut für Experimentalphysik, Hamburg, Germany (GRID:grid.9026.d) (ISNI:0000000122872617); Max-Planck-Institut für Physik, München, Germany (GRID:grid.435824.c) (ISNI:0000000123750603)
28 Paul Scherrer Institut, Villigen, Switzerland (GRID:grid.5991.4) (ISNI:0000000110907501)
29 CEA, DSM/Irfu, CE-Saclay, Gif-sur-Yvette, France (GRID:grid.7683.a)
30 Institute for Nuclear Physics(b), Cracow, Poland (GRID:grid.418860.3) (ISNI:0000000109428941)
31 DESY, Hamburg, Germany (GRID:grid.7683.a) (ISNI:0000000404920453); IPNL, Université Claude Bernard Lyon 1, CNRS/IN2P3, Villeurbanne, France (GRID:grid.4444.0) (ISNI:0000000121129282)
32 Institut für Teilchenphysik, ETH(h), Zürich, Switzerland (GRID:grid.5801.c) (ISNI:0000 0001 2156 2780)
33 University of Lancaster(b), Department of Physics, Lancaster, UK (GRID:grid.9835.7) (ISNI:0000000081906402)
34 Universität Heidelberg(a), Kirchhoff-Institut für Physik, Heidelberg, Germany (GRID:grid.7700.0) (ISNI:0000000121904373)
35 DESY, Zeuthen, Germany (GRID:grid.7683.a) (ISNI:0000000404920453)
36 CINVESTAV IPN(i), Departamento de Fisica, México City, México (GRID:grid.7700.0)
37 Universität Heidelberg(a), Physikalisches Institut, Heidelberg, Germany (GRID:grid.7700.0) (ISNI:0000000121904373)
38 University of Lund(f), Physics Department, Lund, Sweden (GRID:grid.4514.4) (ISNI:0000000109302361)
39 DESY, Hamburg, Germany (GRID:grid.7683.a) (ISNI:0000000404920453); Brussels and Universiteit Antwerpen(c), Inter-University Institute for High Energies ULB-VUB, Antwerpen, Belgium (GRID:grid.5284.b) (ISNI:0000000107903681)
40 Joint Institute for Nuclear Research(a), Dubna, Russia (GRID:grid.33762.33) (ISNI:0000000406204119)
41 Universität Hamburg(a), Institut für Experimentalphysik, Hamburg, Germany (GRID:grid.9026.d) (ISNI:0000000122872617)
42 University of London(b), School of Physics and Astronomy, Queen Mary, London, UK (GRID:grid.4464.2) (ISNI:0000000121612573)
43 LAL, Université Paris-Sud, CNRS/IN2P3, Orsay, France (GRID:grid.4444.0) (ISNI:0000000121129282); EPC, Institute of High Energy Physics, Beijing, China (GRID:grid.418741.f) (ISNI:0000000406323097)
44 DESY, Hamburg, Germany (GRID:grid.7683.a) (ISNI:0000000404920453); University of Toronto, Department of Physics, Toronto, Canada (GRID:grid.17063.33) (ISNI:0000 0001 2157 2938)
45 CINVESTAV IPN(i), Departamento de Fisica, México City, México (GRID:grid.7683.a)
46 I. Physikalisches Institut der RWTH, Aachen, Germany (GRID:grid.1957.a) (ISNI:000000010728696X)
47 Fachbereich C, Universität Wuppertal, Wuppertal, Germany (GRID:grid.7787.f) (ISNI:0000000123645811)
48 Physik-Institut der Universität Zürich(h), Zürich, Switzerland (GRID:grid.7400.3) (ISNI:0000000419370650)
49 DESY, Hamburg, Germany (GRID:grid.7683.a) (ISNI:0000000404920453); Humbold Universität Berlin, Berlin, Germany (GRID:grid.7468.d) (ISNI:0000000122487639)
50 CEA, DSM/Irfu, CE-Saclay, Gif-sur-Yvette, France (GRID:grid.10025.36); CERN, Geneva, Switzerland (GRID:grid.9132.9) (ISNI:0000000095478293)
51 Charles University(g), Faculty of Mathematics and Physics, Praha, Czech Republic (GRID:grid.4491.8) (ISNI:000000041937116X); LAPP, Université de Savoie, CNRS/IN2P3, Annecy-le-Vieux, France (GRID:grid.4444.0) (ISNI:0000000121129282)
52 CPPM, Aix-Marseille Univ, CNRS/IN2P3, Marseille, France (GRID:grid.4444.0) (ISNI:0000000121129282); University of Toronto, Department of Physics, Toronto, Canada (GRID:grid.17063.33) (ISNI:0000 0001 2157 2938)
53 DESY, Hamburg, Germany (GRID:grid.7683.a) (ISNI:0000000404920453); Lebedev Physical Institute, Moscow, Russia (GRID:grid.425806.d) (ISNI:0000000106566476)
54 Dipartimento di Fisica Università di Roma Tre and INFN Roma 3, Roma, Italy (GRID:grid.6045.7) (ISNI:0000000417575281)
55 Brussels and Universiteit Antwerpen(c), Inter-University Institute for High Energies ULB-VUB, Antwerpen, Belgium (GRID:grid.5284.b) (ISNI:0000000107903681); Charles University(g), Faculty of Mathematics and Physics, Praha, Czech Republic (GRID:grid.4491.8) (ISNI:000000041937116X)
56 Institute for Nuclear Research and Nuclear Energy, Sofia, Bulgaria (GRID:grid.425050.6)
57 Institute of Physics and Technology of the Mongolian Academy of Sciences, Ulaanbaatar, Mongolia (GRID:grid.450277.3); Ulaanbaatar University, Ulaanbaatar, Mongolia (GRID:grid.260731.1) (ISNI:0000000123240259)
58 TU Dortmund(d), Institut für Physik, Dortmund, Germany (GRID:grid.5675.1) (ISNI:0000000104169637)




