Dynamical parton distribution functions

被引：4

作者：

Pisano, Cristian ^{[1
]}

机构：

[1] Vrije Univ Amsterdam, Dept Phys & Astron, NL-1081 HV Amsterdam, Netherlands

来源：

NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS | 2009年 / 191卷

关键词：

SINGLET QCD ANALYSIS; INELASTIC STRUCTURE FUNCTIONS; 3-LOOP SPLITTING FUNCTIONS; SMALL-X PHYSICS; LEADING ORDER; NNLO EVOLUTION; SCATTERING; PROTON; REGION; ELECTROPRODUCTION;

D O I：

10.1016/j.nuclphysbps.2009.03.111

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：

Recent measurements for F-2(x,Q(2)) have been analyzed in terms of the 'dynamical' and 'standard' parton model approach at NLO and NNLO of perturbative QCD. Having fixed the relevant NLO and NNLO parton distributions, the implications and predictions for the longitudinal structure function FL (x,Q(2)) are presented. It is shown that the previously noted extreme perturbative NNLO/NLO instability of F-L(x,Q(2)) is an artifact of the commonly utilized 'standard' gluon distributions. In particular it is demonstrated that using the appropriate dynamically generated - parton distributions at NLO and NNLO, F-L(x,Q(2)) turns out to be perturbatively rather stable already for Q(2) >= O (2 - 3 GeV2).

引用

页码：35 / 43

页数：9

共 49 条

[1] Determination of the longitudinal proton structure function F-L(x,Q(2)) at low x [J].

Adloff, C ;

Aid, S ;

Anderson, M ;

Andreev, V ;

Andrieu, B ;

Arndt, C ;

Babaev, A ;

Bahr, J ;

Ban, J ;

Ban, Y ;

Baranov, P ;

Barrelet, E ;

Barschke, R ;

Bartel, W ;

Barth, M ;

Bassler, U ;

Beck, HP ;

Beck, M ;

Behrend, HJ ;

Belousov, A ;

Berger, C ;

Bernardi, G ;

BertrandCoremans, G ;

Besancon, M ;

Beyer, R ;

Biddulph, P ;

Bispham, P ;

Bizot, JC ;

Blobel, V ;

Blumlein, J ;

Borras, K ;

Botterweck, P ;

Boudry, V ;

Braemer, A ;

Braunschweig, W ;

Brisson, V ;

Bruckner, W ;

Bruel, P ;

Bruncko, D ;

Brune, C ;

Buchholz, R ;

Bungener, L ;

Burger, J ;

Busser, FW ;

Buniatian, A ;

Burke, S ;

Burton, MJ ;

Calvet, D ;

Campbell, AJ ;

Carli, T .

PHYSICS LETTERS B, 1997, 393 (3-4) :452-464

[2]

Adloff C, 2001, EUR PHYS J C, V21, P33, DOI 10.1007/s100520100720

[3] Measurement and QCD analysis of neutral and charged current cross sections at HERA [J].

Adloff, C ;

Andreev, V ;

Andrieu, B ;

Anthonis, T ;

Astvatsatourov, A ;

Babaev, A ;

Bähr, J ;

Baranov, P ;

Barrelet, E ;

Bartel, W ;

Baumgartner, S ;

Becker, J ;

Beckingham, M ;

Beglarian, A ;

Behnke, O ;

Belousov, A ;

Berger, C ;

Berndt, T ;

Bizot, JC ;

Böhme, J ;

Boudry, V ;

Braunschweig, W ;

Brisson, V ;

Bröker, HB ;

Brown, DP ;

Bruncko, D ;

Büsser, FW ;

Bunyatyan, A ;

Burrage, A ;

Buschhorn, G ;

Bystritskaya, L ;

Campbell, AJ ;

Cao, J ;

Caron, S ;

Cassol-Brunner, F ;

Chekelian, V ;

Clarke, D ;

Collard, C ;

Contreras, JG ;

Coppens, YR ;

Coughlan, JA ;

Cousinou, MC ;

Cox, BE ;

Cozzika, G ;

Cvach, J ;

Dainton, JB ;

Dau, WD ;

Daum, K ;

Davidsson, M ;

Delcourt, B .

EUROPEAN PHYSICAL JOURNAL C, 2003, 30 (01) :1-32

[4] Fixed target Drell-Yan data and NNLO QCD fits of parton distribution functions [J].

Alekhin, Sergey ;

Melnikov, Kirill ;

Petriello, Frank .

PHYSICAL REVIEW D, 2006, 74 (05)

[5] Parton distribution functions from the precise NNLO QCD fit [J].

Alekhin, SI .

JETP LETTERS, 2005, 82 (10) :628-631

[6] Parton distributions from deep-inelastic-scattering data [J].

Alekhin, SI .

PHYSICAL REVIEW D, 2003, 68 (01)

[7] Accurate measurement of F-2(d)/F-2(p) and R(d)-R(p) [J].

Arneodo, M ;

Arvidson, A ;

Badelek, B ;

Ballintijn, M ;

Baum, G ;

Beaufays, J ;

Bird, IG ;

Bjorkholm, P ;

Botje, M ;

Broggini, C ;

Bruckner, W ;

Brull, A ;

Burger, WJ ;

Ciborowski, J ;

vanDantzig, R ;

Dyring, A ;

Engelien, H ;

Ferrero, MI ;

Fluri, L ;

Gaul, U ;

Granier, T ;

GrossePerdekamp, M ;

vonHarrach, D ;

vanderHeijden, M ;

Heusch, C ;

Ingram, Q ;

deJong, M ;

Kabuss, EM ;

Kaiser, R ;

Ketel, TJ ;

Klein, F ;

Kullander, S ;

Landgraf, U ;

Lindqvist, T ;

Mallot, GK ;

Mariotti, C ;

vanMiddelkoop, G ;

Milsztajn, A ;

Mizuno, Y ;

Most, A ;

Mucklich, A ;

Nassalski, J ;

Nowotny, D ;

Oberski, J ;

Paic, A ;

Peroni, C ;

Povh, B ;

Prytz, K ;

Rieger, R ;

Rith, K .

NUCLEAR PHYSICS B, 1997, 487 (1-2) :3-26

[8] A COMPARISON OF THE STRUCTURE FUNCTIONS F2 OF THE PROTON AND THE NEUTRON FROM DEEP INELASTIC MUON SCATTERING AT HIGH Q2 [J].

BENVENUTI, AC ;

BOLLINI, D ;

BRUNI, G ;

NAVARRIA, FL ;

LOHMANN, W ;

VOSS, R ;

GENCHEV, VI ;

KRIVOKHIZHIN, VG ;

LEDNICKY, R ;

NEMECEK, S ;

SAVIN, IA ;

SMIRNOV, GI ;

SULTANOV, G ;

MEYERBERKHOUT, U ;

STAUDE, A ;

TEICHERT, KM ;

ZUPANCIC, C ;

MILSZTAJN, A ;

OURAOU, A ;

SMADJA, G ;

VIRCHAUX, M .

PHYSICS LETTERS B, 1990, 237 (3-4) :599-604

[9] Longitudinal heavy quark structure function FLQQ in the region Q2 >> m2 at O(α3s) [J].

Bluemlein, J. ;

De Freitas, A. ;

van Neerven, W. L. ;

Klein, S. .

NUCLEAR PHYSICS B, 2006, 755 :272-285

[10] Non-singlet QCD analysis of deep inelastic world data at O(αs3) [J].

Bluemlein, Johannes ;

Boettcher, Helmut ;

Guffanti, Alberto .

NUCLEAR PHYSICS B, 2007, 774 :182-207

← 1 2 3 4 5 →