Cross sections for hard exclusive electroproduction of π+ mesons on a hydrogen target

A. Airapetian; N. Akopov; Z. Akopov; E. C. Aschenauer; W. Augustyniak; A. Avetissian; E. Avetissian; L. Barion; S. Belostotski; N. Bianchi; H. P. Blok; H. Böttcher; C. Bonomo; A. Borissov; V. Bryzgalov; J. Burns; M. Capiluppi; G. P. Capitani; E. Cisbani; G. Ciullo; M. Contalbrigo; P. F. Dalpiaz; W. Deconinck; R. De Leo; M. Demey; L. De Nardo; E. De Sanctis; M. Diefenthaler; P. Di Nezza; J. Dreschler; M. Düren; M. Ehrenfried; G. Elbakian; F. Ellinghaus; R. Fabbri; A. Fantoni; S. Frullani; D. Gabbert; G. Gapienko; V. Gapienko; F. Garibaldi; G. Gavrilov; V. Gharibyan; F. Giordano; S. Gliske; H. Guler; C. Hadjidakis; D. Hasch; G. Hill; A. Hillenbrand; M. Hoek; I. Hristova; A. Ilyichev; Y. Imazu; A. Ivanilov; H. E. Jackson; S. Joosten; R. Kaiser; T. Keri; E. Kinney; A. Kisselev; M. Kopytin; V. Korotkov; P. Kravchenko; V. G. Krivokhijine; L. Lagamba; R. Lamb; L. Lapikás; I. Lehmann; P. Lenisa; L. A. Linden-Levy; A. Lopez Ruiz; W. Lorenzon; S. Lu; X. Lu; D. Mahon; N. C.R. Makins; B. Marianski; H. Marukyan; C. A. Miller; Y. Miyachi; V. Muccifora; M. Murray; A. Mussgiller; E. Nappi; Y. Naryshkin; A. Nass; M. Negodaev; W. D. Nowak; L. L. Pappalardo; R. Perez-Benito; N. Pickert; M. Raithel; P. E. Reimer; A. R. Reolon; C. Riedl; K. Rith; S. E. Rock; G. Rosner; A. Rostomyan; L. Rubacek; J. Rubin; D. Ryckbosch; Y. Salomatin; A. Schäfer; G. Schnell; K. P. Schüler; B. Seitz; C. Shearer; T. A. Shibata; V. Shutov; M. Stancari; M. Statera; J. J.M. Steijger; H. Stenzel; J. Stewart; F. Stinzing; J. Streit; S. Taroian; E. Thomas; A. Trzcinski; M. Tytgat; A. Vandenbroucke; P. B. van der Nat; G. van der Steenhoven; Y. van Haarlem; C. van Hulse; M. Varanda; D. Veretennikov; V. Vikhrov; I. Vilardi; C. Vogel; S. Wang; S. Yaschenko; H. Ye; Z. Ye; S. Yen; W. Yu; D. Zeiler; B. Zihlmann; P. Zupranski

doi:10.1016/j.physletb.2007.11.079

Cross sections for hard exclusive electroproduction of π⁺ mesons on a hydrogen target

A. Airapetian, N. Akopov, Z. Akopov, E. C. Aschenauer, W. Augustyniak, A. Avetissian, E. Avetissian, L. Barion, S. Belostotski, N. Bianchi, H. P. Blok, H. Böttcher, C. Bonomo, A. Borissov, V. Bryzgalov, J. Burns, M. Capiluppi, G. P. Capitani, E. Cisbani, G. CiulloM. Contalbrigo, P. F. Dalpiaz, W. Deconinck, R. De Leo, M. Demey, L. De Nardo, E. De Sanctis, M. Diefenthaler, P. Di Nezza, J. Dreschler, M. Düren, M. Ehrenfried, G. Elbakian, F. Ellinghaus, R. Fabbri, A. Fantoni, S. Frullani, D. Gabbert, G. Gapienko, V. Gapienko, F. Garibaldi, G. Gavrilov, V. Gharibyan, F. Giordano, S. Gliske, H. Guler, C. Hadjidakis, D. Hasch, G. Hill, A. Hillenbrand, M. Hoek, I. Hristova, A. Ilyichev, Y. Imazu, A. Ivanilov, H. E. Jackson, S. Joosten, R. Kaiser, T. Keri, E. Kinney, A. Kisselev, M. Kopytin, V. Korotkov, P. Kravchenko, V. G. Krivokhijine, L. Lagamba, R. Lamb, L. Lapikás, I. Lehmann, P. Lenisa, L. A. Linden-Levy, A. Lopez Ruiz, W. Lorenzon, S. Lu, X. Lu, D. Mahon, N. C.R. Makins, B. Marianski, H. Marukyan, C. A. Miller, Y. Miyachi, V. Muccifora, M. Murray, A. Mussgiller, E. Nappi, Y. Naryshkin, A. Nass, M. Negodaev, W. D. Nowak, L. L. Pappalardo, R. Perez-Benito, N. Pickert, M. Raithel, P. E. Reimer, A. R. Reolon, C. Riedl, K. Rith, S. E. Rock, G. Rosner, A. Rostomyan, L. Rubacek, J. Rubin, D. Ryckbosch, Y. Salomatin, A. Schäfer, G. Schnell, K. P. Schüler, B. Seitz, C. Shearer, T. A. Shibata, V. Shutov, M. Stancari, M. Statera, J. J.M. Steijger, H. Stenzel, J. Stewart, F. Stinzing, J. Streit, S. Taroian, E. Thomas, A. Trzcinski, M. Tytgat, A. Vandenbroucke, P. B. van der Nat, G. van der Steenhoven, Y. van Haarlem, C. van Hulse, M. Varanda, D. Veretennikov, V. Vikhrov, I. Vilardi, C. Vogel, S. Wang, S. Yaschenko, H. Ye, Z. Ye, S. Yen, W. Yu, D. Zeiler, B. Zihlmann, P. Zupranski

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

Abstract

The exclusive electroproduction of π⁺ mesons was studied with the HERMES spectrometer at the DESY laboratory by scattering 27.6 GeV positron and electron beams off an internal hydrogen gas target. The virtual-photon cross sections were measured as a function of the Mandelstam variable t and the squared four momentum - Q² of the exchanged virtual photon. A model calculation based on Generalized Parton Distributions is in fair agreement with the data at low values of | t | if power corrections are included. A model calculation based on the Regge formalism gives a good description of the magnitude and the t and Q² dependences of the cross section.

Original language	English (US)
Pages (from-to)	486-492
Number of pages	7
Journal	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	659
Issue number	3
DOIs	https://doi.org/10.1016/j.physletb.2007.11.079
State	Published - Jan 24 2008
Externally published	Yes

ASJC Scopus subject areas

Nuclear and High Energy Physics

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10.1016/j.physletb.2007.11.079

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Airapetian, A., Akopov, N., Akopov, Z., Aschenauer, E. C., Augustyniak, W., Avetissian, A., Avetissian, E., Barion, L., Belostotski, S., Bianchi, N., Blok, H. P., Böttcher, H., Bonomo, C., Borissov, A., Bryzgalov, V., Burns, J., Capiluppi, M., Capitani, G. P., Cisbani, E., ... Zupranski, P. (2008). Cross sections for hard exclusive electroproduction of π⁺ mesons on a hydrogen target. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 659(3), 486-492. https://doi.org/10.1016/j.physletb.2007.11.079

Airapetian, A, Akopov, N, Akopov, Z, Aschenauer, EC, Augustyniak, W, Avetissian, A, Avetissian, E, Barion, L, Belostotski, S, Bianchi, N, Blok, HP, Böttcher, H, Bonomo, C, Borissov, A, Bryzgalov, V, Burns, J, Capiluppi, M, Capitani, GP, Cisbani, E, Ciullo, G, Contalbrigo, M, Dalpiaz, PF, Deconinck, W, De Leo, R, Demey, M, De Nardo, L, De Sanctis, E, Diefenthaler, M, Di Nezza, P, Dreschler, J, Düren, M, Ehrenfried, M, Elbakian, G, Ellinghaus, F, Fabbri, R, Fantoni, A, Frullani, S, Gabbert, D, Gapienko, G, Gapienko, V, Garibaldi, F, Gavrilov, G, Gharibyan, V, Giordano, F, Gliske, S, Guler, H, Hadjidakis, C, Hasch, D, Hill, G, Hillenbrand, A, Hoek, M, Hristova, I, Ilyichev, A, Imazu, Y, Ivanilov, A, Jackson, HE, Joosten, S, Kaiser, R, Keri, T, Kinney, E, Kisselev, A, Kopytin, M, Korotkov, V, Kravchenko, P, Krivokhijine, VG, Lagamba, L, Lamb, R, Lapikás, L, Lehmann, I, Lenisa, P, Linden-Levy, LA, Lopez Ruiz, A, Lorenzon, W, Lu, S, Lu, X, Mahon, D, Makins, NCR, Marianski, B, Marukyan, H, Miller, CA, Miyachi, Y, Muccifora, V, Murray, M, Mussgiller, A, Nappi, E, Naryshkin, Y, Nass, A, Negodaev, M, Nowak, WD, Pappalardo, LL, Perez-Benito, R, Pickert, N, Raithel, M, Reimer, PE, Reolon, AR, Riedl, C, Rith, K, Rock, SE, Rosner, G, Rostomyan, A, Rubacek, L, Rubin, J, Ryckbosch, D, Salomatin, Y, Schäfer, A, Schnell, G, Schüler, KP, Seitz, B, Shearer, C, Shibata, TA, Shutov, V, Stancari, M, Statera, M, Steijger, JJM, Stenzel, H, Stewart, J, Stinzing, F, Streit, J, Taroian, S, Thomas, E, Trzcinski, A, Tytgat, M, Vandenbroucke, A, van der Nat, PB, van der Steenhoven, G, van Haarlem, Y, van Hulse, C, Varanda, M, Veretennikov, D, Vikhrov, V, Vilardi, I, Vogel, C, Wang, S, Yaschenko, S, Ye, H, Ye, Z, Yen, S, Yu, W, Zeiler, D, Zihlmann, B & Zupranski, P 2008, 'Cross sections for hard exclusive electroproduction of π⁺ mesons on a hydrogen target', Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, vol. 659, no. 3, pp. 486-492. https://doi.org/10.1016/j.physletb.2007.11.079

@article{9ea2224214a44584a0a20ae6d6405bf7,

title = "Cross sections for hard exclusive electroproduction of π+ mesons on a hydrogen target",

abstract = "The exclusive electroproduction of π+ mesons was studied with the HERMES spectrometer at the DESY laboratory by scattering 27.6 GeV positron and electron beams off an internal hydrogen gas target. The virtual-photon cross sections were measured as a function of the Mandelstam variable t and the squared four momentum - Q2 of the exchanged virtual photon. A model calculation based on Generalized Parton Distributions is in fair agreement with the data at low values of | t | if power corrections are included. A model calculation based on the Regge formalism gives a good description of the magnitude and the t and Q2 dependences of the cross section.",

author = "A. Airapetian and N. Akopov and Z. Akopov and Aschenauer, {E. C.} and W. Augustyniak and A. Avetissian and E. Avetissian and L. Barion and S. Belostotski and N. Bianchi and Blok, {H. P.} and H. B{\"o}ttcher and C. Bonomo and A. Borissov and V. Bryzgalov and J. Burns and M. Capiluppi and Capitani, {G. P.} and E. Cisbani and G. Ciullo and M. Contalbrigo and Dalpiaz, {P. F.} and W. Deconinck and {De Leo}, R. and M. Demey and {De Nardo}, L. and {De Sanctis}, E. and M. Diefenthaler and {Di Nezza}, P. and J. Dreschler and M. D{\"u}ren and M. Ehrenfried and G. Elbakian and F. Ellinghaus and R. Fabbri and A. Fantoni and S. Frullani and D. Gabbert and G. Gapienko and V. Gapienko and F. Garibaldi and G. Gavrilov and V. Gharibyan and F. Giordano and S. Gliske and H. Guler and C. Hadjidakis and D. Hasch and G. Hill and A. Hillenbrand and M. Hoek and I. Hristova and A. Ilyichev and Y. Imazu and A. Ivanilov and Jackson, {H. E.} and S. Joosten and R. Kaiser and T. Keri and E. Kinney and A. Kisselev and M. Kopytin and V. Korotkov and P. Kravchenko and Krivokhijine, {V. G.} and L. Lagamba and R. Lamb and L. Lapik{\'a}s and I. Lehmann and P. Lenisa and Linden-Levy, {L. A.} and {Lopez Ruiz}, A. and W. Lorenzon and S. Lu and X. Lu and D. Mahon and Makins, {N. C.R.} and B. Marianski and H. Marukyan and Miller, {C. A.} and Y. Miyachi and V. Muccifora and M. Murray and A. Mussgiller and E. Nappi and Y. Naryshkin and A. Nass and M. Negodaev and Nowak, {W. D.} and Pappalardo, {L. L.} and R. Perez-Benito and N. Pickert and M. Raithel and Reimer, {P. E.} and Reolon, {A. R.} and C. Riedl and K. Rith and Rock, {S. E.} and G. Rosner and A. Rostomyan and L. Rubacek and J. Rubin and D. Ryckbosch and Y. Salomatin and A. Sch{\"a}fer and G. Schnell and Sch{\"u}ler, {K. P.} and B. Seitz and C. Shearer and Shibata, {T. A.} and V. Shutov and M. Stancari and M. Statera and Steijger, {J. J.M.} and H. Stenzel and J. Stewart and F. Stinzing and J. Streit and S. Taroian and E. Thomas and A. Trzcinski and M. Tytgat and A. Vandenbroucke and {van der Nat}, {P. B.} and {van der Steenhoven}, G. and {van Haarlem}, Y. and {van Hulse}, C. and M. Varanda and D. Veretennikov and V. Vikhrov and I. Vilardi and C. Vogel and S. Wang and S. Yaschenko and H. Ye and Z. Ye and S. Yen and W. Yu and D. Zeiler and B. Zihlmann and P. Zupranski",

note = "Funding Information: We thank M. Guidal, J.M. Laget and M. Vanderhaeghen for the theoretical calculations as well as M. Diehl for many interesting and useful discussions. We gratefully acknowledge the DESY management for its support, the staff at DESY and the collaborating institutions for their significant effort, and our national funding agencies and the EU RII3-CT-2004-506078 program for financial support. ",

year = "2008",

month = jan,

day = "24",

doi = "10.1016/j.physletb.2007.11.079",

language = "English (US)",

volume = "659",

pages = "486--492",

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

issn = "0370-2693",

publisher = "Elsevier B.V.",

number = "3",

}

TY - JOUR

T1 - Cross sections for hard exclusive electroproduction of π+ mesons on a hydrogen target

AU - Airapetian, A.

AU - Akopov, N.

AU - Akopov, Z.

AU - Aschenauer, E. C.

AU - Augustyniak, W.

AU - Avetissian, A.

AU - Avetissian, E.

AU - Barion, L.

AU - Belostotski, S.

AU - Bianchi, N.

AU - Blok, H. P.

AU - Böttcher, H.

AU - Bonomo, C.

AU - Borissov, A.

AU - Bryzgalov, V.

AU - Burns, J.

AU - Capiluppi, M.

AU - Capitani, G. P.

AU - Cisbani, E.

AU - Ciullo, G.

AU - Contalbrigo, M.

AU - Dalpiaz, P. F.

AU - Deconinck, W.

AU - De Leo, R.

AU - Demey, M.

AU - De Nardo, L.

AU - De Sanctis, E.

AU - Diefenthaler, M.

AU - Di Nezza, P.

AU - Dreschler, J.

AU - Düren, M.

AU - Ehrenfried, M.

AU - Elbakian, G.

AU - Ellinghaus, F.

AU - Fabbri, R.

AU - Fantoni, A.

AU - Frullani, S.

AU - Gabbert, D.

AU - Gapienko, G.

AU - Gapienko, V.

AU - Garibaldi, F.

AU - Gavrilov, G.

AU - Gharibyan, V.

AU - Giordano, F.

AU - Gliske, S.

AU - Guler, H.

AU - Hadjidakis, C.

AU - Hasch, D.

AU - Hill, G.

AU - Hillenbrand, A.

AU - Hoek, M.

AU - Hristova, I.

AU - Ilyichev, A.

AU - Imazu, Y.

AU - Ivanilov, A.

AU - Jackson, H. E.

AU - Joosten, S.

AU - Kaiser, R.

AU - Keri, T.

AU - Kinney, E.

AU - Kisselev, A.

AU - Kopytin, M.

AU - Korotkov, V.

AU - Kravchenko, P.

AU - Krivokhijine, V. G.

AU - Lagamba, L.

AU - Lamb, R.

AU - Lapikás, L.

AU - Lehmann, I.

AU - Lenisa, P.

AU - Linden-Levy, L. A.

AU - Lopez Ruiz, A.

AU - Lorenzon, W.

AU - Lu, S.

AU - Lu, X.

AU - Mahon, D.

AU - Makins, N. C.R.

AU - Marianski, B.

AU - Marukyan, H.

AU - Miller, C. A.

AU - Miyachi, Y.

AU - Muccifora, V.

AU - Murray, M.

AU - Mussgiller, A.

AU - Nappi, E.

AU - Naryshkin, Y.

AU - Nass, A.

AU - Negodaev, M.

AU - Nowak, W. D.

AU - Pappalardo, L. L.

AU - Perez-Benito, R.

AU - Pickert, N.

AU - Raithel, M.

AU - Reimer, P. E.

AU - Reolon, A. R.

AU - Riedl, C.

AU - Rith, K.

AU - Rock, S. E.

AU - Rosner, G.

AU - Rostomyan, A.

AU - Rubacek, L.

AU - Rubin, J.

AU - Ryckbosch, D.

AU - Salomatin, Y.

AU - Schäfer, A.

AU - Schnell, G.

AU - Schüler, K. P.

AU - Seitz, B.

AU - Shearer, C.

AU - Shibata, T. A.

AU - Shutov, V.

AU - Stancari, M.

AU - Statera, M.

AU - Steijger, J. J.M.

AU - Stenzel, H.

AU - Stewart, J.

AU - Stinzing, F.

AU - Streit, J.

AU - Taroian, S.

AU - Thomas, E.

AU - Trzcinski, A.

AU - Tytgat, M.

AU - Vandenbroucke, A.

AU - van der Nat, P. B.

AU - van der Steenhoven, G.

AU - van Haarlem, Y.

AU - van Hulse, C.

AU - Varanda, M.

AU - Veretennikov, D.

AU - Vikhrov, V.

AU - Vilardi, I.

AU - Vogel, C.

AU - Wang, S.

AU - Yaschenko, S.

AU - Ye, H.

AU - Ye, Z.

AU - Yen, S.

AU - Yu, W.

AU - Zeiler, D.

AU - Zihlmann, B.

AU - Zupranski, P.

N1 - Funding Information: We thank M. Guidal, J.M. Laget and M. Vanderhaeghen for the theoretical calculations as well as M. Diehl for many interesting and useful discussions. We gratefully acknowledge the DESY management for its support, the staff at DESY and the collaborating institutions for their significant effort, and our national funding agencies and the EU RII3-CT-2004-506078 program for financial support.

PY - 2008/1/24

Y1 - 2008/1/24

N2 - The exclusive electroproduction of π+ mesons was studied with the HERMES spectrometer at the DESY laboratory by scattering 27.6 GeV positron and electron beams off an internal hydrogen gas target. The virtual-photon cross sections were measured as a function of the Mandelstam variable t and the squared four momentum - Q2 of the exchanged virtual photon. A model calculation based on Generalized Parton Distributions is in fair agreement with the data at low values of | t | if power corrections are included. A model calculation based on the Regge formalism gives a good description of the magnitude and the t and Q2 dependences of the cross section.

AB - The exclusive electroproduction of π+ mesons was studied with the HERMES spectrometer at the DESY laboratory by scattering 27.6 GeV positron and electron beams off an internal hydrogen gas target. The virtual-photon cross sections were measured as a function of the Mandelstam variable t and the squared four momentum - Q2 of the exchanged virtual photon. A model calculation based on Generalized Parton Distributions is in fair agreement with the data at low values of | t | if power corrections are included. A model calculation based on the Regge formalism gives a good description of the magnitude and the t and Q2 dependences of the cross section.

UR - http://www.scopus.com/inward/record.url?scp=37549002540&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=37549002540&partnerID=8YFLogxK

U2 - 10.1016/j.physletb.2007.11.079

DO - 10.1016/j.physletb.2007.11.079

M3 - Article

AN - SCOPUS:37549002540

SN - 0370-2693

VL - 659

SP - 486

EP - 492

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 - 3

ER -