Forward π° production and associated transverse energy flow in deep-inelastic scattering at HERA

Aktas A.; Andreev V.; Anthonis T.; Asmone A.; Astvatsatourov A.; Babaev A.; Backovic S.; Bähr J.; Baranov P.; Barrelet E.; Bartel W.; Baumgartner S.; Becker J.; Beckingham M.; Beglarian A.; Behnke O.; Behrendt O.; Belousov A.; Berger C.; Berndt T.; Bizot J.C.; Böhme J.; Boenig M.O.; Boudry V.; Bracinik J.; Braunschweig W.; Brisson V.; Bröker H.B.; Brown D.P.; Bruncko D.; Büsser F.W.; Bunyatyan A.; Burrage A.; Buschhorn G.; Bystritskaya L.; Campbell A.J.; Caron S.; Cassol-Brunner F.; Chekelian V.; Clarke D.; Collard C.; Contreras J.G.; Coppens Y.R.; Coughlan J.A.; Cousinou M.C.; Cox B.E.; Cozzika G.; Cvach J.; Dainton J.B.; Dau W.D.; Daum K.; Davidsson M.; Delcourt B.; Delerue N.; Demirchyan R.; de Roeck A.; de Wolf E.A.; Diaconu C.; Dingfelder J.; Dixon P.; Dodonov V.; Dowell J.D.; Dubak A.; Duprel C.; Eckerlin G.; Efremenko V.; Egli S.; Eichler R.; Eisele F.; Ellerbrock M.; Elsen E.; Erdmann M.; Erdmann W.; Faulkner P.J.W.; Favart L.; Fedotov A.; Felst R.; Ferencei J.; Ferron S.; Fleischer M.; Fleischmann P.; Fleming Y.H.; Flucke G.; Flügge G.; Fomenko A.; Foresti I.; Formánek J.; Franke G.; Frising G.; Gabathuler E.; Gabathuler K.; Garvey J.; Gassner J.; Gayler J.; Gerhards R.; Gerlich C.; Ghazaryan S.; Goerlich L.; Gogitidze N.; Gorbounov S.

Title

Date Issued

01 December 2004

Access level

metadata only access

Resource Type

journal article

Author(s)

Aktas A.

Andreev V.

Anthonis T.

Asmone A.

Astvatsatourov A.

Babaev A.

Backovic S.

Bähr J.

Baranov P.

Barrelet E.

Bartel W.

Baumgartner S.

Becker J.

Beckingham M.

Beglarian A.

Behnke O.

Behrendt O.

Belousov A.

Berger C.

Berndt T.

Bizot J.C.

Böhme J.

Boenig M.O.

Boudry V.

Bracinik J.

Braunschweig W.

Brisson V.

Bröker H.B.

Brown D.P.

Bruncko D.

Büsser F.W.

Bunyatyan A.

Burrage A.

Buschhorn G.

Bystritskaya L.

Campbell A.J.

Caron S.

Cassol-Brunner F.

Chekelian V.

Clarke D.

Collard C.

Contreras J.G.

Coppens Y.R.

Coughlan J.A.

Cousinou M.C.

Cox B.E.

Cozzika G.

Cvach J.

Dainton J.B.

Dau W.D.

Daum K.

Davidsson M.

Delcourt B.

Delerue N.

Demirchyan R.

de Roeck A.

de Wolf E.A.

Diaconu C.

Dingfelder J.

Dixon P.

Dodonov V.

Dowell J.D.

Dubak A.

Duprel C.

Eckerlin G.

Efremenko V.

Egli S.

Eichler R.

Eisele F.

Ellerbrock M.

Elsen E.

Erdmann M.

Erdmann W.

Faulkner P.J.W.

Favart L.

Fedotov A.

Felst R.

Ferencei J.

Ferron S.

Fleischer M.

Fleischmann P.

Fleming Y.H.

Flucke G.

Flügge G.

Fomenko A.

Foresti I.

Formánek J.

Franke G.

Frising G.

Gabathuler E.

Gabathuler K.

Garvey J.

Gassner J.

Gayler J.

Gerhards R.

Gerlich C.

Ghazaryan S.

Goerlich L.

Gogitidze N.

Gorbounov S.

Abstract

Deep-inelastic positron-proton interactions at low values of Bjorken-x down to x ≈ 4 · 10 -5 which give rise to high transverse momentum π°-mesons are studied with the Hi experiment at HERA. The inclusive cross section for π°-mesons produced at small angles with respect to the proton remnant (the forward region) is presented as a function of the transverse momentum and energy of the π° and of the four-momentum transfer Q 2 and Bjorken-x. Measurements are also presented of the transverse energy flow in events containing a forward π°-meson. Hadronic final state calculations based on QCD models implementing different parton evolution schemes are confronted with the data. © Springer-Verlag / Società Italiana di Fisica 2004.

Start page

441

End page

452

Volume

36

Issue

4

Language

English

OCDE Knowledge area

Física y Astronomía

DOI

10.1140/epjc/s2004-01983-1

Scopus EID

2-s2.0-14644442620

Source

European Physical Journal C

ISSN of the container

14346044

Sources of information: Directorio de Producción Científica Scopus

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