New determination of the Pomeron intercept in hard processes

被引：14

作者：

Contreras, JG

Peschanski, R

Royon, C

机构：

[1] CINVESTAV, IPN, Dept Fis Aplicada, Unidad Merida, Merida 97310, Yucatan, Mexico

[2] CE Saclay, CEA, Serv Phys Theor, F-91191 Gif Sur Yvette, France

[3] CE Saclay, Serv Phys Particules, F-91191 Gif Sur Yvette, France

来源：

PHYSICAL REVIEW D | 2000年 / 62卷 / 03期

关键词：

D O I：

10.1103/PhysRevD.62.034006

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

method allowing for a direct comparison of data with theoretical predictions is proposed for forward jet production at DESY HERA. It avoids the reconstruction of multiparton contributions by expressing the experimental cuts directly as correction factors on the QCD forward jet cross section. An application to the determination of the effective Pomeron intercept in the Balitskii-Fadin-Kuraev-Lipatov (BFKL)-leading-order (LO) parametrization from d sigma/dx data at HERA leads to a good fit with a significantly higher effective intercept, alpha(P) = 1.43 +/- 0.025(stat) +/- 0.025(syst), than for proton (total and diffractive) structure functions. Tt is, however, less than the value of the Pomeron intercept using dijets with large rapidity intervals obtained at the Fermilab Tevatron. We also evaluate the rapidity veto contribution to the higher-order BFKL corrections. The method can he extended to other theoretical inputs.

引用

页码：1 / 7

页数：7

共 56 条

[1]

ABRAMOWICZ H, 19 INT S LEPT PHOT I

[2] Heavy quarkonium production in Z decays [J].

Acciarri, M ;

Achard, P ;

Adriani, O ;

Aguilar-Benitez, M ;

Alcaraz, J ;

Alemanni, G ;

Allaby, J ;

Aloisio, A ;

Alviggi, MG ;

Ambrosi, G ;

Anderhub, H ;

Andreev, VP ;

Angelescu, T ;

Anselmo, F ;

Arefiev, A ;

Azemoon, T ;

Aziz, T ;

Bagnaia, P ;

Baksay, L ;

Balandras, A ;

Ball, RC ;

Banerjee, S ;

Banicz, K ;

Barczyk, A ;

Barillère, R ;

Barone, L ;

Bartalini, P ;

Basile, M ;

Battiston, R ;

Bay, A ;

Becattini, F ;

Becker, U ;

Behner, F ;

Berdugo, J ;

Berges, P ;

Bertucci, B ;

Betev, BL ;

Bhattacharya, S ;

Biasini, M ;

Biland, A ;

Blaising, JJ ;

Blyth, SC ;

Bobbink, GJ ;

Böhm, A ;

Boldizsar, L ;

Borgia, B ;

Bourilkov, D ;

Bourquin, M ;

Braccini, S .

PHYSICS LETTERS B, 1999, 453 (1-2) :94-106

[3] Forward jet and particle production at HERA [J].

Adloff, C ;

Anderson, M ;

Andreev, V ;

Andrieu, B ;

Arkadov, V ;

Arndt, C ;

Ayyaz, I ;

Babaev, A ;

Bähr, J ;

Bán, J ;

Baranov, P ;

Barrelet, E ;

Bartel, W ;

Bassler, U ;

Bate, P ;

Beck, M ;

Beglarian, A ;

Behnke, O ;

Behrend, HJ ;

Beier, C ;

Belousov, A ;

Berger, C ;

Bernardi, G ;

Bertrand-Coremans, G ;

Biddulph, P ;

Bizot, JC ;

Boudry, V ;

Braunschweig, W ;

Brisson, V ;

Brown, DP ;

Brückner, W ;

Bruel, P ;

Bruncko, D ;

Bürger, J ;

Büsser, FW ;

Buniatian, A ;

Burke, S ;

Buschhorn, G ;

Calvet, D ;

Campbell, AJ ;

Carli, T ;

Chabert, E ;

Charlet, M ;

Clarke, D ;

Clerbaux, B ;

Cocks, S ;

Contreras, JG ;

Cormack, C ;

Coughlan, JA ;

Cousinou, MC .

NUCLEAR PHYSICS B, 1999, 538 (1-2) :3-22

[4] A measurement and QCD analysis of the proton structure function F-2(x,Q(2)) at HERA [J].

Aid, S ;

Andreev, V ;

Andrieu, B ;

Appuhn, RD ;

Arpagaus, M ;

Babaev, A ;

Bahr, J ;

Ban, J ;

Ban, Y ;

Baranov, P ;

Barrelet, E ;

Barschke, R ;

Bartel, W ;

Barth, M ;

Bassler, U ;

Beck, HP ;

Behrend, HJ ;

Belousov, A ;

Berger, C ;

Bernardi, G ;

Bernet, R ;

BertrandCoremans, G ;

Besancon, M ;

Beyer, R ;

Biddulph, P ;

Bispham, P ;

Bizot, JC ;

Blobel, V ;

Borras, K ;

Botterweck, F ;

Boudry, V ;

Braemer, A ;

Braunschweig, W ;

Brisson, V ;

Bruncko, D ;

Brune, C ;

Buchholz, R ;

Bungener, L ;

Burger, J ;

Busser, FW ;

Buniatian, A ;

Burke, S ;

Burton, MJ ;

Buschhorn, G ;

Campbell, AJ ;

Carli, T ;

Charles, F ;

Charlet, M ;

Clarke, D ;

Clegg, AB .

NUCLEAR PHYSICS B, 1996, 470 (1-2) :3-38

[5] ASYMPTOTIC FREEDOM IN PARTON LANGUAGE [J].

ALTARELLI, G ;

PARISI, G .

NUCLEAR PHYSICS B, 1977, 126 (02) :298-318

[6]

BALITSKII YY, 1978, SOV J NUCL PHYS+, V28, P822

[7] Associated jet production at HERA [J].

Bartels, J ;

DelDuca, V ;

DeRoeck, A ;

Graudenz, D ;

Wusthoff, M .

PHYSICS LETTERS B, 1996, 384 (1-4) :300-306

[8]

BARTELS J, 1992, Z PHYS C, V54, P921

[9] QUANTUM ELECTRODYNAMICS AT INFINITE MOMENTUM - SCATTERING FROM AN EXTERNAL FIELD [J].

BJORKEN, JD ;

KOGUT, JB ;

SOPER, DE .

PHYSICAL REVIEW D, 1971, 3 (06) :1382-&

[10] γ*γ* total cross section in the dipole picture of BFKL dynamics [J].

Boonekamp, M ;

De Roeck, A ;

Royon, C ;

Wallon, S .

NUCLEAR PHYSICS B, 1999, 555 (03) :540-564

← 1 2 3 4 5 6 →