Elastic electroproduction of rho and J/psi mesons at large Q(2) at HERA

被引：119

作者：

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

机构：

[1] RHEIN WESTFAL TH AACHEN, INST PHYS 1, W-5100 AACHEN, GERMANY

[2] RHEIN WESTFAL TH AACHEN, INST PHYS 3, W-5100 AACHEN, GERMANY

[3] HUMBOLDT UNIV BERLIN, INST PHYS, BERLIN, GERMANY

[4] UNIV BIRMINGHAM, SCH PHYS & SPACE RES, BIRMINGHAM B15 2TT, W MIDLANDS, ENGLAND

[5] ULB VUB, INTERUNIV INST HIGH ENERGIES, BRUSSELS, BELGIUM

[6] UNIV INSTELLING ANTWERP, WILHELMSHAVEN, GERMANY

[7] RUTHERFORD APPLETON LAB, CHILTON, ENGLAND

[8] INST PHYS NUCL, KRAKOW, POLAND

[9] UNIV CALIF DAVIS, DEPT PHYS, DAVIS, CA 95616 USA

[10] UNIV CALIF DAVIS, IIRPA, DAVIS, CA 95616 USA

[11] UNIV DORTMUND, INST PHYS, W-4600 DORTMUND, GERMANY

[12] CTR ETUD SACLAY, DAPNIA, DSM, CEA, GIF SUR YVETTE, FRANCE

[13] UNIV GLASGOW, DEPT PHYS & ASTRON, GLASGOW, LANARK, SCOTLAND

[14] DESY, W-2000 HAMBURG, GERMANY

[15] UNIV HAMBURG, INST EXPTL PHYS 1, HAMBURG, GERMANY

[16] UNIV HEIDELBERG, INST PHYS, W-6900 HEIDELBERG, GERMANY

[17] UNIV HEIDELBERG, INST HOCHENERGIEPHYS, W-6900 HEIDELBERG, GERMANY

[18] CHRISTIAN ALBRECHTS UNIV KIEL, INST REINE & ANGEW KERNPHYS, W-2300 KIEL, GERMANY

[19] SLOVAK ACAD SCI, INST EXPTL PHYS, KOSICE 04353, SLOVAKIA

[20] UNIV LANCASTER, SCH PHYS & CHEM, LANCASTER, ENGLAND

[21] UNIV LIVERPOOL, DEPT PHYS, LIVERPOOL L69 3BX, MERSEYSIDE, ENGLAND

[22] UNIV LONDON QUEEN MARY & WESTFIELD COLL, LONDON E1 4NS, ENGLAND

[23] LUND UNIV, DEPT PHYS, LUND, SWEDEN

[24] UNIV MANCHESTER, DEPT PHYS, MANCHESTER M13 9PL, LANCS, ENGLAND

[25] UNIV AIX MARSEILLE 2, CPPM, IN2P3, CNRS, MARSEILLE, FRANCE

[26] INST THEORET & EXPTL PHYS, MOSCOW 117259, RUSSIA

[27] PN LEBEDEV PHYS INST, MOSCOW 117924, RUSSIA

[28] MAX PLANCK INST PHYS & ASTROPHYS, MUNICH, GERMANY

[29] UNIV PARIS 11, LAL, IN2P3, CNRS, ORSAY, FRANCE

[30] ECOLE POLYTECH, LPNHE, IN2P3, CNRS, PALAISEAU, FRANCE

[31] UNIV PARIS 06, LPNHE, IN2P3, CNRS, PARIS, FRANCE

[32] UNIV PARIS 07, LPNHE, IN2P3, CNRS, PARIS, FRANCE

[33] ACAD SCI CZECH REPUBL, INST PHYS, PRAGUE, CZECH REPUBLIC

[34] CHARLES UNIV, NUCL CTR, PRAGUE, CZECH REPUBLIC

[35] INFN ROMA, ROME, ITALY

[36] UNIV ROMA LA SAPIENZA, DIPARTIMENTO FIS, I-00185 ROME, ITALY

[37] PAUL SCHERRER INST, VILLIGEN, SWITZERLAND

[38] BERG UNIV GESAMTHSCH WUPPERTAL, FACHBEREICH PHYS, W-5600 WUPPERTAL, GERMANY

[39] DESY, INST HOCHENERGIEPHYS, ZEUTHEN, GERMANY

[40] ETH ZURICH, INST TEILCHENPHYS, ZURICH, SWITZERLAND

[41] UNIV ZURICH, INST PHYS, ZURICH, SWITZERLAND

来源：

NUCLEAR PHYSICS B | 1996年 / 468卷 / 1-2期

关键词：

electroproduction reactions; J/psi mesons-properties; rho mesons; elastic scattering;

D O I：

10.1016/0550-3213(96)00192-7

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：

The total cross sections for the elastic electroproduction of rho and J/psi mesons for Q(2) > 8 GeV2 and [W] similar or equal to 90 GeV/c(2) are measured at HERA with the H1 detector. The measurements are for an integrated electron-proton luminosity of similar or equal to 3 pb(-1). The dependences of the total virtual photon-proton (gamma*p) cross sections on Q(2), W and the momentum transfer squared to the proton (t), and, for the rho, the dependence on the polar decay angle (cos theta*), are presented. The J/psi:rho cross section ratio is determined. The results are discussed in the light of theoretical models and of the interplay of hard and soft physics processes.

引用

页码：3 / 33

页数：31

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