e+e- production from pp reactions at BEVALAC energies

被引：23

作者：

Bratkovskaya, EL ^{[1
]}

Cassing, W ^{[1
]}

Effenberger, M ^{[1
]}

Mosel, U ^{[1
]}

机构：

[1] Univ Giessen, Inst Theoret Phys, D-35392 Giessen, Germany

来源：

NUCLEAR PHYSICS A | 1999年 / 653卷 / 03期

关键词：

particle and resonance production; Leptonic and semileptonic decays; Hadron mass models and calculations;

D O I：

10.1016/S0375-9474(99)00300-0

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

We have performed a detailed study of dilepton production from pp collisions including the subthreshold rho production via baryonic resonances (N(1520), N(1700)) in addition to the conventional dilepton sources as pi(0), eta, omega and Delta Dalitz decays and direct decays of vector mesons (rho, omega). The role of baryonic resonances in rho production from nucleon-nucleon collisions is studied in comparison to the DLS data which are well described. (C) 1999 Elsevier Science B.V. All rights reserved.

引用

页码：301 / 317

页数：17

共 63 条

[1] EFFECTS OF PAIR CORRELATIONS IN STATISTICAL GAMMA-DECAY SPECTRA [J].

DOSSING, T ;

KHOO, TL ;

LAURITSEN, T ;

AHMAD, I ;

BLUMENTHAL, D ;

CARPENTER, MP ;

CROWELL, B ;

GASSMANN, D ;

HENRY, RG ;

JANSSENS, RVF ;

NISIUS, D .

PHYSICAL REVIEW LETTERS, 1995, 75 (07) :1276-1279

[2]

Agakichiev G, 1996, NUCL PHYS A, V610, pC317

[3] LOW-MASS LEPTON-PAIR PRODUCTION IN P-BE COLLISIONS AT 450 GEV/C [J].

AKESSON, T ;

ALMEHED, S ;

ANGELIS, ALS ;

ANTOS, J ;

ATHERTON, H ;

AUBRY, P ;

BARTELS, HW ;

BEAUDOIN, G ;

BEAULIEU, JM ;

BEKER, H ;

BENARY, O ;

BETTONI, D ;

BISI, V ;

BLEVIS, I ;

BOGGILD, H ;

CLELAND, W ;

CLEMEN, M ;

COLLICK, B ;

CORRIVEAU, F ;

DAGAN, S ;

DEDERICHS, K ;

DEPOMMIER, P ;

DIGIACOMO, N ;

DILIBERTO, S ;

DODD, JR ;

DOLGOSHEIN, B ;

DREES, A ;

EIDELMAN, S ;

ENYO, H ;

ERLANDSSON, B ;

ESTEN, MJ ;

FABJAN, CW ;

FISCHER, P ;

GAIDOT, A ;

GIBRATDEBU, F ;

GIUBELLINO, P ;

GLASSEL, P ;

GOERLACH, U ;

GOLUBKOV, Y ;

HAGLUND, R ;

HAMEL, LA ;

VANHECKE, H ;

HEDBERG, V ;

HEIFETZ, R ;

HOLSCHER, A ;

JACAK, B ;

JARLSKOG, G ;

JOHANNSON, S ;

KRANER, H ;

KROH, V .

ZEITSCHRIFT FUR PHYSIK C-PARTICLES AND FIELDS, 1995, 68 (01) :47-64

[4] THE FRITIOF MODEL FOR VERY-HIGH-ENERGY HADRONIC COLLISIONS [J].

ANDERSSON, B ;

GUSTAFSON, G ;

HONG, P .

ZEITSCHRIFT FUR PHYSIK C-PARTICLES AND FIELDS, 1993, 57 (03) :485-494

[5]

[Anonymous], 1988, LANDOLTBORNSTEIN, VI

[6] RHO MESON IN DENSE HADRONIC MATTER [J].

ASAKAWA, M ;

KO, CM ;

LEVAI, P ;

QIU, XJ .

PHYSICAL REVIEW C, 1992, 46 (04) :R1159-R1162

[7]

ASAKAWA M, 1993, PHYS REV C, V48, P526

[8] Dilepton anisotropy from p+Be and Ca+Ca collisions at BEVALAC energies [J].

Bratkovskaya, EL ;

Cassing, W ;

Mosel, U .

PHYSICS LETTERS B, 1996, 376 (1-3) :12-18

[9] Dilepton production and mT-scaling at BEVALAC/SIS energies [J].

Bratkovskaya, EL ;

Cassing, W ;

Rapp, R ;

Wambach, J .

NUCLEAR PHYSICS A, 1998, 634 (1-2) :168-189

[10] Low-mass dileptons and dropping rho meson mass [J].

Bratkovskaya, EL ;

Ko, CM .

PHYSICS LETTERS B, 1999, 445 (3-4) :265-270

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