Search for odderon-induced contributions to exclusive π0 photoproduction at HERA

C. Adloff; V. Andreev; B. Andrieu; T. Anthonis; V. Arkadov; A. Astvatsatourov; A. Babaev; J. Bähr; P. Baranov; E. Barrelet; W. Bartel; J. Becker; A. Beglarian; O. Behnke; C. Beier; A. Belousov; Ch Berger; T. Berndt; J. C. Bizot; J. Böhme; V. Boudry; W. Braunschweig; V. Brisson; H. B. Bröker; D. P. Brown; W. Brückner; D. Bruncko; J. Bürger; F. W. Büsser; A. Bunyatyan; A. Burrage; G. Buschhorn; L. Bystritskaya; A. J. Campbell; J. Cao; S. Caron; F. Cassol-Brunner; D. Clarke; C. Collard; J. G. Contreras; Y. R. Coppens; J. A. Coughlan; M. C. Cousinou; B. E. Cox; G. Cozzika; J. Cvach; J. B. Dainton; W. D. Dau; K. Daum; M. Davidsson; B. Delcourt; N. Delerue; R. Demirchyan; A. De Roeck; E. A. De Wolf; C. Diaconu; J. Dingfelder; P. Dixon; V. Dodonov; J. D. Dowell; A. Droutskoi; A. Dubak; C. Duprel; G. Eckerlin; D. Eckstein; V. Efremenko; S. Egli; R. Eichler; F. Eisele; E. Eisenhandler; M. Ellerbrock; E. Elsen; M. Erdmann; W. Erdmann; P. J.W. Faulkner; L. Favart; A. Fedotov; R. Felst; J. Ferencei; S. Ferron; M. Fleischer; Y. H. Fleming; G. Flügge; A. Fomenko; I. Foresti; J. Formánek; G. Franke; E. Gabathuler; K. Gabathuler; J. Garvey; J. Gassner; J. Gayler; R. Gerhards; C. Gerlich

doi:10.1016/S0370-2693(02)02479-6

Search for odderon-induced contributions to exclusive π⁰ photoproduction at HERA

C. Adloff
, V. Andreev
, B. Andrieu
, T. Anthonis
, V. Arkadov
, A. Astvatsatourov
, A. Babaev
, J. Bähr
, P. Baranov
, E. Barrelet
, W. Bartel
, J. Becker
, A. Beglarian
, O. Behnke
, C. Beier
, A. Belousov
, Ch Berger
, T. Berndt
, J. C. Bizot
, J. Böhme

V. Boudry, W. Braunschweig, V. Brisson, H. B. Bröker, D. P. Brown, W. Brückner, D. Bruncko, J. Bürger, F. W. Büsser, A. Bunyatyan, A. Burrage, G. Buschhorn, L. Bystritskaya, A. J. Campbell, J. Cao, S. Caron, F. Cassol-Brunner, D. Clarke, C. Collard, J. G. Contreras, Y. R. Coppens, J. A. Coughlan, M. C. Cousinou, B. E. Cox, G. Cozzika, J. Cvach, J. B. Dainton, W. D. Dau, K. Daum, M. Davidsson, B. Delcourt, N. Delerue, R. Demirchyan, A. De Roeck, E. A. De Wolf, C. Diaconu, J. Dingfelder, P. Dixon, V. Dodonov, J. D. Dowell, A. Droutskoi, A. Dubak, C. Duprel, G. Eckerlin, D. Eckstein, V. Efremenko, S. Egli, R. Eichler, F. Eisele, E. Eisenhandler, M. Ellerbrock, E. Elsen, M. Erdmann, W. Erdmann, P. J.W. Faulkner, L. Favart, A. Fedotov, R. Felst, J. Ferencei, S. Ferron, M. Fleischer, Y. H. Fleming, G. Flügge, A. Fomenko, I. Foresti, J. Formánek, G. Franke, E. Gabathuler, K. Gabathuler, J. Garvey, J. Gassner, J. Gayler, R. Gerhards, C. Gerlich

Research output: Contribution to journal › Article › peer-review

Abstract

A search for contributions to the reaction ep → eπ⁰N* from photon-odderon fusion in the photoproduction regime at HERA is reported, at an average photon-proton centre-of-mass energy (W) = 215 GeV. The measurement proceeds via detection of the π⁰ decay photons, a leading neutron from the N* decay, and the scattered electron. No π⁰ signal is observed and an upper limit on the cross section for the photon-odderon fusion process of σ(γp → π⁰N*) < 49 nb at the 95% confidence level is derived, integrated over the experimentally accessible range of the squared four-momentum transfer at the nucleon vertex 0.02 < |t| < 0.3 GeV². This excludes a recent prediction from a calculation based on a non-perturbative QCD model of a photon-odderon fusion cross section above 200 nb.

Original language	English
Pages (from-to)	35-43
Number of pages	9
Journal	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	544
Issue number	1-2
DOIs	https://doi.org/10.1016/S0370-2693(02)02479-6
Publication status	Published - 19 Sept 2002

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10.1016/S0370-2693(02)02479-6

Cite this

Adloff, C., Andreev, V., Andrieu, B., Anthonis, T., Arkadov, V., Astvatsatourov, A., Babaev, A., Bähr, J., Baranov, P., Barrelet, E., Bartel, W., Becker, J., Beglarian, A., Behnke, O., Beier, C., Belousov, A., Berger, C., Berndt, T., Bizot, J. C., ... Gerlich, C. (2002). Search for odderon-induced contributions to exclusive π⁰ photoproduction at HERA. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 544(1-2), 35-43. https://doi.org/10.1016/S0370-2693(02)02479-6

@article{9c812e9dbebc4a7c9d2e2e3a46c56e00,

title = "Search for odderon-induced contributions to exclusive π0 photoproduction at HERA",

abstract = "A search for contributions to the reaction ep → eπ0N* from photon-odderon fusion in the photoproduction regime at HERA is reported, at an average photon-proton centre-of-mass energy (W) = 215 GeV. The measurement proceeds via detection of the π0 decay photons, a leading neutron from the N* decay, and the scattered electron. No π0 signal is observed and an upper limit on the cross section for the photon-odderon fusion process of σ(γp → π0N*) < 49 nb at the 95\% confidence level is derived, integrated over the experimentally accessible range of the squared four-momentum transfer at the nucleon vertex 0.02 < |t| < 0.3 GeV2. This excludes a recent prediction from a calculation based on a non-perturbative QCD model of a photon-odderon fusion cross section above 200 nb.",

author = "C. Adloff and V. Andreev and B. Andrieu and T. Anthonis and V. Arkadov and A. Astvatsatourov and A. Babaev and J. B{\"a}hr and P. Baranov and E. Barrelet and W. Bartel and J. Becker and A. Beglarian and O. Behnke and C. Beier and A. Belousov and Ch Berger and T. Berndt and Bizot, \{J. C.\} and J. B{\"o}hme and V. Boudry and W. Braunschweig and V. Brisson and Br{\"o}ker, \{H. B.\} and Brown, \{D. P.\} and W. Br{\"u}ckner and D. Bruncko and J. B{\"u}rger and B{\"u}sser, \{F. W.\} and A. Bunyatyan and A. Burrage and G. Buschhorn and L. Bystritskaya and Campbell, \{A. J.\} and J. Cao and S. Caron and F. Cassol-Brunner and D. Clarke and C. Collard and Contreras, \{J. G.\} and Coppens, \{Y. R.\} and Coughlan, \{J. A.\} and Cousinou, \{M. C.\} and Cox, \{B. E.\} and G. Cozzika and J. Cvach and Dainton, \{J. B.\} and Dau, \{W. D.\} and K. Daum and M. Davidsson and B. Delcourt and N. Delerue and R. Demirchyan and \{De Roeck\}, A. and \{De Wolf\}, \{E. A.\} and C. Diaconu and J. Dingfelder and P. Dixon and V. Dodonov and Dowell, \{J. D.\} and A. Droutskoi and A. Dubak and C. Duprel and G. Eckerlin and D. Eckstein and V. Efremenko and S. Egli and R. Eichler and F. Eisele and E. Eisenhandler and M. Ellerbrock and E. Elsen and M. Erdmann and W. Erdmann and Faulkner, \{P. J.W.\} and L. Favart and A. Fedotov and R. Felst and J. Ferencei and S. Ferron and M. Fleischer and Fleming, \{Y. H.\} and G. Fl{\"u}gge and A. Fomenko and I. Foresti and J. Form{\'a}nek and G. Franke and E. Gabathuler and K. Gabathuler and J. Garvey and J. Gassner and J. Gayler and R. Gerhards and C. Gerlich",

year = "2002",

month = sep,

day = "19",

doi = "10.1016/S0370-2693(02)02479-6",

language = "English",

volume = "544",

pages = "35--43",

journal = "Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics",

issn = "0370-2693",

number = "1-2",

}

Adloff, C, Andreev, V, Andrieu, B, Anthonis, T, Arkadov, V, Astvatsatourov, A, Babaev, A, Bähr, J, Baranov, P, Barrelet, E, Bartel, W, Becker, J, Beglarian, A, Behnke, O, Beier, C, Belousov, A, Berger, C, Berndt, T, Bizot, JC, Böhme, J, Boudry, V, Braunschweig, W, Brisson, V, Bröker, HB, Brown, DP, Brückner, W, Bruncko, D, Bürger, J, Büsser, FW, Bunyatyan, A, Burrage, A, Buschhorn, G, Bystritskaya, L, Campbell, AJ, Cao, J, Caron, S, Cassol-Brunner, F, Clarke, D, Collard, C, Contreras, JG, Coppens, YR, Coughlan, JA, Cousinou, MC, Cox, BE, Cozzika, G, Cvach, J, Dainton, JB, Dau, WD, Daum, K, Davidsson, M, Delcourt, B, Delerue, N, Demirchyan, R, De Roeck, A, De Wolf, EA, Diaconu, C, Dingfelder, J, Dixon, P, Dodonov, V, Dowell, JD, Droutskoi, A, Dubak, A, Duprel, C, Eckerlin, G, Eckstein, D, Efremenko, V, Egli, S, Eichler, R, Eisele, F, Eisenhandler, E, Ellerbrock, M, Elsen, E, Erdmann, M, Erdmann, W, Faulkner, PJW, Favart, L, Fedotov, A, Felst, R, Ferencei, J, Ferron, S, Fleischer, M, Fleming, YH, Flügge, G, Fomenko, A, Foresti, I, Formánek, J, Franke, G, Gabathuler, E, Gabathuler, K, Garvey, J, Gassner, J, Gayler, J, Gerhards, R & Gerlich, C 2002, 'Search for odderon-induced contributions to exclusive π⁰ photoproduction at HERA', Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, vol. 544, no. 1-2, pp. 35-43. https://doi.org/10.1016/S0370-2693(02)02479-6

TY - JOUR

T1 - Search for odderon-induced contributions to exclusive π0 photoproduction at HERA

AU - Adloff, C.

AU - Andreev, V.

AU - Andrieu, B.

AU - Anthonis, T.

AU - Arkadov, V.

AU - Astvatsatourov, A.

AU - Babaev, A.

AU - Bähr, J.

AU - Baranov, P.

AU - Barrelet, E.

AU - Bartel, W.

AU - Becker, J.

AU - Beglarian, A.

AU - Behnke, O.

AU - Beier, C.

AU - Belousov, A.

AU - Berger, Ch

AU - Berndt, T.

AU - Bizot, J. C.

AU - Böhme, J.

AU - Boudry, V.

AU - Braunschweig, W.

AU - Brisson, V.

AU - Bröker, H. B.

AU - Brown, D. P.

AU - Brückner, W.

AU - Bruncko, D.

AU - Bürger, J.

AU - Büsser, F. W.

AU - Bunyatyan, A.

AU - Burrage, A.

AU - Buschhorn, G.

AU - Bystritskaya, L.

AU - Campbell, A. J.

AU - Cao, J.

AU - Caron, S.

AU - Cassol-Brunner, F.

AU - Clarke, D.

AU - Collard, C.

AU - Contreras, J. G.

AU - Coppens, Y. R.

AU - Coughlan, J. A.

AU - Cousinou, M. C.

AU - Cox, B. E.

AU - Cozzika, G.

AU - Cvach, J.

AU - Dainton, J. B.

AU - Dau, W. D.

AU - Daum, K.

AU - Davidsson, M.

AU - Delcourt, B.

AU - Delerue, N.

AU - Demirchyan, R.

AU - De Roeck, A.

AU - De Wolf, E. A.

AU - Diaconu, C.

AU - Dingfelder, J.

AU - Dixon, P.

AU - Dodonov, V.

AU - Dowell, J. D.

AU - Droutskoi, A.

AU - Dubak, A.

AU - Duprel, C.

AU - Eckerlin, G.

AU - Eckstein, D.

AU - Efremenko, V.

AU - Egli, S.

AU - Eichler, R.

AU - Eisele, F.

AU - Eisenhandler, E.

AU - Ellerbrock, M.

AU - Elsen, E.

AU - Erdmann, M.

AU - Erdmann, W.

AU - Faulkner, P. J.W.

AU - Favart, L.

AU - Fedotov, A.

AU - Felst, R.

AU - Ferencei, J.

AU - Ferron, S.

AU - Fleischer, M.

AU - Fleming, Y. H.

AU - Flügge, G.

AU - Fomenko, A.

AU - Foresti, I.

AU - Formánek, J.

AU - Franke, G.

AU - Gabathuler, E.

AU - Gabathuler, K.

AU - Garvey, J.

AU - Gassner, J.

AU - Gayler, J.

AU - Gerhards, R.

AU - Gerlich, C.

PY - 2002/9/19

Y1 - 2002/9/19

N2 - A search for contributions to the reaction ep → eπ0N* from photon-odderon fusion in the photoproduction regime at HERA is reported, at an average photon-proton centre-of-mass energy (W) = 215 GeV. The measurement proceeds via detection of the π0 decay photons, a leading neutron from the N* decay, and the scattered electron. No π0 signal is observed and an upper limit on the cross section for the photon-odderon fusion process of σ(γp → π0N*) < 49 nb at the 95% confidence level is derived, integrated over the experimentally accessible range of the squared four-momentum transfer at the nucleon vertex 0.02 < |t| < 0.3 GeV2. This excludes a recent prediction from a calculation based on a non-perturbative QCD model of a photon-odderon fusion cross section above 200 nb.

AB - A search for contributions to the reaction ep → eπ0N* from photon-odderon fusion in the photoproduction regime at HERA is reported, at an average photon-proton centre-of-mass energy (W) = 215 GeV. The measurement proceeds via detection of the π0 decay photons, a leading neutron from the N* decay, and the scattered electron. No π0 signal is observed and an upper limit on the cross section for the photon-odderon fusion process of σ(γp → π0N*) < 49 nb at the 95% confidence level is derived, integrated over the experimentally accessible range of the squared four-momentum transfer at the nucleon vertex 0.02 < |t| < 0.3 GeV2. This excludes a recent prediction from a calculation based on a non-perturbative QCD model of a photon-odderon fusion cross section above 200 nb.

U2 - 10.1016/S0370-2693(02)02479-6

DO - 10.1016/S0370-2693(02)02479-6

M3 - Article

AN - SCOPUS:0037136595

SN - 0370-2693

VL - 544

SP - 35

EP - 43

JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

IS - 1-2

ER -

Search for odderon-induced contributions to exclusive π0 photoproduction at HERA

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Search for odderon-induced contributions to exclusive π⁰ photoproduction at HERA