Probing the perturbative dynamics of exclusive meson pair production

被引：6

作者：

Harland-Lang, L. A. ^{[1
,2
]}

Khoze, V. A. ^{[1
,2
,3
]}

Ryskin, M. G. ^{[3
]}

Stirling, W. J. ^{[4
]}

机构：

[1] Univ Durham, Dept Phys, Durham DH1 3LE, England

[2] Univ Durham, Inst Particle Phys Phenomenol, Durham DH1 3LE, England

[3] NRC Kurchatov Inst, Petersburg Nucl Phys Inst, St Petersburg 188300, Russia

[4] Univ Cambridge, Cavendish Lab, Cambridge CB3 0HE, England

来源：

PHYSICS LETTERS B | 2013年 / 725卷 / 4-5期

关键词：

DIFFRACTIVE PROCESSES; RADIATION ZEROS; LHC; TEVATRON; AMPLITUDES; HADRONS; PHYSICS;

D O I：

10.1016/j.physletb.2013.07.022

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present the results of a recent novel application of the 'hard exclusive' perturbative formalism to the process gg -> M (M) over bar at large angles, where M ((M) over bar) is a light meson (anti-meson). As well as discussing the important theoretical features of the relevant leading-order gg -> q (q) over bar (gg)q (q) over bar (gg) 6-parton amplitudes, we also comment on their phenomenological implications. In particular, we consider the central exclusive production of meson pairs at comparatively large transverse momentum k(perpendicular to), which is expected to proceed via this mechanism. We show that this leads to various non-trivial predictions for a range of exclusive processes, and that the cross sections for the eta' and eta mesons display significant sensitivity to any valence gg component of the meson wavefunctions. (C) 2013 Elsevier B.V. All rights reserved.

引用

页码：316 / 321

页数：6

共 31 条

[1] Observation of Exclusive γγ Production in p(p)over-bar Collisions at √s=1.96 TeV [J].

Aaltonen, T. ;

Albrow, M. G. ;

Alvarez Gonzalez, B. ;

Amerio, S. ;

Amidei, D. ;

Anastassov, A. ;

Annovi, A. ;

Antos, J. ;

Apollinari, G. ;

Appel, J. A. ;

Arisawa, T. ;

Artikov, A. ;

Asaadi, J. ;

Ashmanskas, W. ;

Auerbach, B. ;

Aurisano, A. ;

Azfar, F. ;

Badgett, W. ;

Bae, T. ;

Barbaro-Galtieri, A. ;

Barnes, V. E. ;

Barnett, B. A. ;

Barria, P. ;

Bartos, P. ;

Bauce, M. ;

Bedeschi, F. ;

Behari, S. ;

Bellettini, G. ;

Bellinger, J. ;

Benjamin, D. ;

Beretvas, A. ;

Bhatti, A. ;

Bisello, D. ;

Bizjak, I. ;

Bland, K. R. ;

Blumenfeld, B. ;

Bocci, A. ;

Bodek, A. ;

Bortoletto, D. ;

Boudreau, J. ;

Boveia, A. ;

Brigliadori, L. ;

Bromberg, C. ;

Brucken, E. ;

Budagov, J. ;

Budd, H. S. ;

Burkett, K. ;

Busetto, G. ;

Bussey, P. ;

Buzatu, A. .

PHYSICAL REVIEW LETTERS, 2012, 108 (08)

[2]

Albrow M., 2012, DIFFR 2012 WORKSH PU

[3] Central exclusive particle production at high energy hadron colliders [J].

Albrow, M. G. ;

Coughlin, T. D. ;

Forshaw, J. R. .

PROGRESS IN PARTICLE AND NUCLEAR PHYSICS, 2010, 65 (02) :149-184

[4]

[Anonymous], COMMUNICATION

[5]

[Anonymous], COMMUNICATION

[6] SU(3) SYMMETRY-BREAKING EFFECTS IN GAMMA-GAMMA-]2 MESONS PROCESSES [J].

BENAYOUN, M ;

CHERNYAK, VL .

NUCLEAR PHYSICS B, 1990, 329 (02) :285-309

[7] LARGE-ANGLE 2-PHOTON EXCLUSIVE CHANNELS IN QUANTUM CHROMODYNAMICS [J].

BRODSKY, SJ ;

LEPAGE, GP .

PHYSICAL REVIEW D, 1981, 24 (07) :1808-1817

[8] CLASSICAL RADIATION ZEROS IN GAUGE-THEORY AMPLITUDES [J].

BROWN, RW ;

KOWALSKI, KL ;

BRODSKY, SJ .

PHYSICAL REVIEW D, 1983, 28 (03) :624-649

[9] Exclusive γ(*)γ processes [J].

Chernyak, V. L. .

CHINESE PHYSICS C, 2010, 34 (06) :822-830

[10] EXCLUSIVE DECAYS OF HEAVY MESONS [J].

CHERNYAK, VL ;

ZHITNITSKY, AR .

NUCLEAR PHYSICS B, 1982, 201 (03) :492-526

← 1 2 3 4 →