F2p at low Q2 and the total γp cross section at HERA

被引：0
|
作者：
Levonian, S [1 ]
机构：
[1] DESY, D-2000 Hamburg, Germany
来源：
HIGH ENERGY PHYSICS, VOLS I AND II | 2001年
关键词：
D O I：
暂无
中图分类号：
O412 [相对论、场论]; O572.2 [粒子物理学];
学科分类号：
摘要：
New precise measurements of the neutral current cross section at HERA are presented in different Q(2) regimes. In the photoproduction limit the total gammap cross section is found to be in agreement with the universal soft Pomeron prediction. At medium scales 1.5 less than or equal to Q(2) less than or equal to 150 GeV2 both the F-2 and the F-L structure functions are determined. These data are well described by NLO pQCD. The gluon density in the proton has been extracted from the scaling violation of F-2 at low x. The transition between the two regimes occurs at around Q(2) similar or equal to 1 GeV2.
引用
收藏
页码：427 / 429
页数：3
相关论文
共 50 条
  • [1] Measurement of the proton structure function F2 and the total γ*p cross-section at low Q2 and low x
    Surrow, B
    DEEP INELASTIC SCATTERING AND QCD - 5TH INTERNATIONAL WORKSHOP, 1997, (407): : 285 - 289
  • [2] The Q2 dependence of dijet cross sections in γp interactions at HERA
    Breitweg, J
    Chekanov, S
    Derrick, M
    Krakauer, D
    Magill, S
    Musgrave, B
    Pellegrino, A
    Repond, J
    Stanek, R
    Yoshida, R
    Mattingly, MCK
    Abbiendi, G
    Anselmo, F
    Antonioli, P
    Bari, G
    Basile, M
    Bellagamba, L
    Boscherini, D
    Bruni, A
    Bruni, G
    Romeo, GC
    Castellini, G
    Cifarelli, L
    Cindolo, F
    Contin, A
    Coppola, N
    Corradi, M
    De Pasquale, S
    Giusti, P
    Iacobucci, G
    Laurenti, G
    Levi, G
    Margotti, A
    Massam, T
    Nania, R
    Palmonari, F
    Pesci, A
    Polini, A
    Sartorelli, G
    Garcia, YZ
    Zichichi, A
    Amelung, C
    Bornheim, A
    Brock, I
    Coböken, K
    Crittenden, J
    Deffner, R
    Hartmann, H
    Heinloth, K
    Hilger, E
    PHYSICS LETTERS B, 2000, 479 (1-3) : 37 - 52
  • [3] F2D at low Q2 at HERA
    Capua, M
    NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS, 2001, 99A : 148 - 151
  • [4] Measurement of the inclusive ep scattering cross section at low Q2 and x at HERA
    F. D. Aaron
    C. Alexa
    V. Andreev
    B. Antunovic
    S. Aplin
    A. Asmone
    A. Astvatsatourov
    S. Backovic
    A. Baghdasaryan
    E. Barrelet
    W. Bartel
    K. Begzsuren
    O. Behnke
    O. Behrendt
    A. Belousov
    J. C. Bizot
    V. Boudry
    I. Bozovic-Jelisavcic
    J. Bracinik
    G. Brandt
    M. Brinkmann
    V. Brisson
    D. Bruncko
    A. Bunyatyan
    G. Buschhorn
    L. Bystritskaya
    A. J. Campbell
    K. B. Cantun Avila
    F. Cassol-Brunner
    K. Cerny
    V. Cerny
    V. Chekelian
    A. Cholewa
    J. G. Contreras
    J. A. Coughlan
    G. Cozzika
    J. Cvach
    J. B. Dainton
    K. Daum
    M. Deák
    Y. de Boer
    B. Delcourt
    M. Del Degan
    J. Delvax
    A. De Roeck
    E. A. De Wolf
    C. Diaconu
    V. Dodonov
    A. Dossanov
    A. Dubak
    The European Physical Journal C, 2009, 63
  • [5] Higher twist contributions to the structure functions F2p(x, Q2) and F2d(x, Q2) at large x at higher orders
    Bluemlein, Johannes
    Boettcher, Helmut
    PHYSICS LETTERS B, 2008, 662 (04) : 336 - 340
  • [6] Spin force dependence of the parton distributions:: The ratio F2n(x,Q2)/F2p(x,Q2) -: art. no. 074028
    Pasquini, B
    Traini, M
    Boffi, S
    PHYSICAL REVIEW D, 2002, 65 (07)
  • [7] A measurement of the proton structure function F2(x, Q2) at low x and low Q2 at HERA
    Nuclear Physics, Section B, 497 (1-2):
  • [8] Theoretical description of the HERA data on F2 at low Q2
    Kaidalov, AB
    Merino, C
    EUROPEAN PHYSICAL JOURNAL C, 1999, 10 (01): : 153 - 157
  • [9] Structure function F2P(x, Q2) at small x within the generalized Regge eikonal approach
    Petrov, VA
    Prokudin, AV
    PHYSICS OF ATOMIC NUCLEI, 2001, 64 (11) : 1988 - 1994
  • [10] Structure function F2p(x, Q2) at small x within the generalized Regge eikonal approach
    V. A. Petrov
    A. V. Prokudin
    Physics of Atomic Nuclei, 2001, 64 : 1988 - 1994
12345