Nuclear effects on R = σL/σT in deep-inelastic scattering

K. Ackerstaff; A. Airapetian; N. Akopov; I. Akushevich; M. Amarian; E. C. Aschenauer; H. Avakian; R. Avakian; A. Avetissian; B. Bains; C. Baumgarten; M. Beckmann; S. Belostotski; J. E. Belz; Th Benisch; S. Bernreuther; N. Bianchi; J. Blouw; H. Böttcher; A. Borissov; M. Bouwhuis; J. Brack; S. Brauksiepe; B. Braun; B. Bray; St Brons; W. Brückner; A. Brüll; E. E.W. Bruins; H. J. Bulten; G. P. Capitani; P. Carter; P. Chumney; E. Cisbani; G. R. Court; P. F. Dalpiaz; E. De Sanctis; D. De Schepper; E. Devitsin; P. K.A. de Witt Huberts; P. Di Nezza; M. Düren; A. Dvoredsky; G. Elbakian; J. Ely; A. Fantoni; A. Fechtchenko; M. Ferstl; K. Fiedler; B. W. Filippone; H. Fischer; B. Fox; J. Franz; S. Frullani; M. A. Funk; Y. Gärber; H. Gao; F. Garibaldi; G. Gavrilov; P. Geiger; V. Gharibyan; A. Golendukhin; G. Graw; O. Grebeniouk; P. W. Green; L. G. Greeniaus; C. Grosshauser; M. Guidal; A. Gute; V. Gyurjyan; J. P. Haas; W. Haeberli; J. O. Hansen; M. Hartig; D. Hasch; O. Häusser; F. H. Heinsius; R. Henderson; M. Henoch; R. Hertenberger; Y. Holler; R. J. Holt; W. Hoprich; H. Ihssen; M. Iodice; A. Izotov; H. E. Jackson; A. Jgoun; R. Kaiser; E. Kinney; M. Kirsch; A. Kisselev; P. Kitching; H. Kobayashi; N. Koch; K. Königsmann; M. Kolstein; H. Kolster; V. Korotkov; W. Korsch; V. Kozlov; L. H. Kramer; V. G. Krivokhijine; M. Kurisuno; G. Kyle; W. Lachnit; P. Lenisa; W. Lorenzon; N. C.R. Makins; F. K. Martens; J. W. Martin; F. Masoli; A. Mateos; M. McAndrew; K. McIlhany; R. D. McKeown; F. Meissner; F. Menden; A. Metz; N. Meyners; O. Mikloukho; C. A. Miller; M. A. Miller; R. Milner; A. Most; V. Muccifora; R. Mussa; A. Nagaitsev; Yu Naryshkin; A. M. Nathan; F. Neunreither; J. M. Niczyporuk; W. D. Nowak; M. Nupieri; T. G. O'Neill; R. Openshaw; J. Ouyang; B. R. Owen; V. Papavassiliou; S. F. Pate; M. Pitt; S. Potashov; D. H. Potterveld; G. Rakness; A. Reali; R. Redwine; A. R. Reolon; R. Ristinen; K. Rith; P. Rossi; S. Rudnitsky; M. Ruh; D. Ryckbosch; Y. Sakemi; I. Savin; C. Scarlett; A. Schäfer; F. Schmidt; H. Schmitt; G. Schnell; K. P. Schüler; A. Schwind; J. Seibert; T. A. Shibata; K. Shibatani; T. Shin; V. Shutov; C. Simani; A. Simon; K. Sinram; P. Slavich; M. Spengos; E. Steffens; J. Stenger; J. Stewart; U. Stoesslein; M. Sutter; H. Tallini; S. Taroian; A. Terkulov; E. Thomas; B. Tipton; M. Tytgat; G. M. Urciuoli; J. F.J. van den Brand; G. van der Steenhoven; R. van de Vyver; J. J. van Hunen; M. C. Vetterli; V. Vikhrov; M. G. Vincter; J. Visser; E. Volk; W. Wander; J. Wendland; S. E. Williamson; T. Wise; K. Woller; S. Yoneyama; H. Zohrabian

doi:10.1016/S0370-2693(99)01493-8

Nuclear effects on R = σ_L/σ_T in deep-inelastic scattering

K. Ackerstaff, A. Airapetian, N. Akopov, I. Akushevich, M. Amarian, E. C. Aschenauer, H. Avakian, R. Avakian, A. Avetissian, B. Bains, C. Baumgarten, M. Beckmann, S. Belostotski, J. E. Belz, Th Benisch, S. Bernreuther, N. Bianchi, J. Blouw, H. Böttcher, A. BorissovM. Bouwhuis, J. Brack, S. Brauksiepe, B. Braun, B. Bray, St Brons, W. Brückner, A. Brüll, E. E.W. Bruins, H. J. Bulten, G. P. Capitani, P. Carter, P. Chumney, E. Cisbani, G. R. Court, P. F. Dalpiaz, E. De Sanctis, D. De Schepper, E. Devitsin, P. K.A. de Witt Huberts, P. Di Nezza, M. Düren, A. Dvoredsky, G. Elbakian, J. Ely, A. Fantoni, A. Fechtchenko, M. Ferstl, K. Fiedler, B. W. Filippone, H. Fischer, B. Fox, J. Franz, S. Frullani, M. A. Funk, Y. Gärber, H. Gao, F. Garibaldi, G. Gavrilov, P. Geiger, V. Gharibyan, A. Golendukhin, G. Graw, O. Grebeniouk, P. W. Green, L. G. Greeniaus, C. Grosshauser, M. Guidal, A. Gute, V. Gyurjyan, J. P. Haas, W. Haeberli, J. O. Hansen, M. Hartig, D. Hasch, O. Häusser, F. H. Heinsius, R. Henderson, M. Henoch, R. Hertenberger, Y. Holler, R. J. Holt, W. Hoprich, H. Ihssen, M. Iodice, A. Izotov, H. E. Jackson, A. Jgoun, R. Kaiser, E. Kinney, M. Kirsch, A. Kisselev, P. Kitching, H. Kobayashi, N. Koch, K. Königsmann, M. Kolstein, H. Kolster, V. Korotkov, W. Korsch, V. Kozlov, L. H. Kramer, V. G. Krivokhijine, M. Kurisuno, G. Kyle, W. Lachnit, P. Lenisa, W. Lorenzon, N. C.R. Makins, F. K. Martens, J. W. Martin, F. Masoli, A. Mateos, M. McAndrew, K. McIlhany, R. D. McKeown, F. Meissner, F. Menden, A. Metz, N. Meyners, O. Mikloukho, C. A. Miller, M. A. Miller, R. Milner, A. Most, V. Muccifora, R. Mussa, A. Nagaitsev, Yu Naryshkin, A. M. Nathan, F. Neunreither, J. M. Niczyporuk, W. D. Nowak, M. Nupieri, T. G. O'Neill, R. Openshaw, J. Ouyang, B. R. Owen, V. Papavassiliou, S. F. Pate, M. Pitt, S. Potashov, D. H. Potterveld, G. Rakness, A. Reali, R. Redwine, A. R. Reolon, R. Ristinen, K. Rith, P. Rossi, S. Rudnitsky, M. Ruh, D. Ryckbosch, Y. Sakemi, I. Savin, C. Scarlett, A. Schäfer, F. Schmidt, H. Schmitt, G. Schnell, K. P. Schüler, A. Schwind, J. Seibert, T. A. Shibata, K. Shibatani, T. Shin, V. Shutov, C. Simani, A. Simon, K. Sinram, P. Slavich, M. Spengos, E. Steffens, J. Stenger, J. Stewart, U. Stoesslein, M. Sutter, H. Tallini, S. Taroian, A. Terkulov, E. Thomas, B. Tipton, M. Tytgat, G. M. Urciuoli, J. F.J. van den Brand, G. van der Steenhoven, R. van de Vyver, J. J. van Hunen, M. C. Vetterli, V. Vikhrov, M. G. Vincter, J. Visser, E. Volk, W. Wander, J. Wendland, S. E. Williamson, T. Wise, K. Woller, S. Yoneyama, H. Zohrabian

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

Abstract

Cross section ratios for deep-inelastic scattering from ¹⁴N and ³He with respect to ²H have been measured by the HERMES experiment at DESY using a 27.5 GeV positron beam. The data cover a range in the Bjorken scaling variable x between 0.013 and 0.65, while the negative squared four-momentum transfer Q² varies from 0.5 to 15 GeV². The data are compared to measurements performed by NMC, E665, and SLAC on ⁴He and ¹²C, and are found to be different for x<0.06 and Q²<1.5 GeV². The observed difference is attributed to an A-dependence of the ratio R = σ_L/σ_T of longitudinal to transverse deep-inelastic scattering cross sections at low x and low Q².

Original language	English (US)
Pages (from-to)	386-394
Number of pages	9
Journal	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	475
Issue number	3-4
DOIs	https://doi.org/10.1016/S0370-2693(99)01493-8
State	Published - Mar 2 2000
Externally published	Yes

ASJC Scopus subject areas

Nuclear and High Energy Physics

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10.1016/S0370-2693(99)01493-8

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Ackerstaff, K., Airapetian, A., Akopov, N., Akushevich, I., Amarian, M., Aschenauer, E. C., Avakian, H., Avakian, R., Avetissian, A., Bains, B., Baumgarten, C., Beckmann, M., Belostotski, S., Belz, J. E., Benisch, T., Bernreuther, S., Bianchi, N., Blouw, J., Böttcher, H., ... Zohrabian, H. (2000). Nuclear effects on R = σ_L/σ_T in deep-inelastic scattering. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 475(3-4), 386-394. https://doi.org/10.1016/S0370-2693(99)01493-8

Ackerstaff, K, Airapetian, A, Akopov, N, Akushevich, I, Amarian, M, Aschenauer, EC, Avakian, H, Avakian, R, Avetissian, A, Bains, B, Baumgarten, C, Beckmann, M, Belostotski, S, Belz, JE, Benisch, T, Bernreuther, S, Bianchi, N, Blouw, J, Böttcher, H, Borissov, A, Bouwhuis, M, Brack, J, Brauksiepe, S, Braun, B, Bray, B, Brons, S, Brückner, W, Brüll, A, Bruins, EEW, Bulten, HJ, Capitani, GP, Carter, P, Chumney, P, Cisbani, E, Court, GR, Dalpiaz, PF, De Sanctis, E, De Schepper, D, Devitsin, E, de Witt Huberts, PKA, Di Nezza, P, Düren, M, Dvoredsky, A, Elbakian, G, Ely, J, Fantoni, A, Fechtchenko, A, Ferstl, M, Fiedler, K, Filippone, BW, Fischer, H, Fox, B, Franz, J, Frullani, S, Funk, MA, Gärber, Y, Gao, H, Garibaldi, F, Gavrilov, G, Geiger, P, Gharibyan, V, Golendukhin, A, Graw, G, Grebeniouk, O, Green, PW, Greeniaus, LG, Grosshauser, C, Guidal, M, Gute, A, Gyurjyan, V, Haas, JP, Haeberli, W, Hansen, JO, Hartig, M, Hasch, D, Häusser, O, Heinsius, FH, Henderson, R, Henoch, M, Hertenberger, R, Holler, Y, Holt, RJ, Hoprich, W, Ihssen, H, Iodice, M, Izotov, A, Jackson, HE, Jgoun, A, Kaiser, R, Kinney, E, Kirsch, M, Kisselev, A, Kitching, P, Kobayashi, H, Koch, N, Königsmann, K, Kolstein, M, Kolster, H, Korotkov, V, Korsch, W, Kozlov, V, Kramer, LH, Krivokhijine, VG, Kurisuno, M, Kyle, G, Lachnit, W, Lenisa, P, Lorenzon, W, Makins, NCR, Martens, FK, Martin, JW, Masoli, F, Mateos, A, McAndrew, M, McIlhany, K, McKeown, RD, Meissner, F, Menden, F, Metz, A, Meyners, N, Mikloukho, O, Miller, CA, Miller, MA, Milner, R, Most, A, Muccifora, V, Mussa, R, Nagaitsev, A, Naryshkin, Y, Nathan, AM, Neunreither, F, Niczyporuk, JM, Nowak, WD, Nupieri, M, O'Neill, TG, Openshaw, R, Ouyang, J, Owen, BR, Papavassiliou, V, Pate, SF, Pitt, M, Potashov, S, Potterveld, DH, Rakness, G, Reali, A, Redwine, R, Reolon, AR, Ristinen, R, Rith, K, Rossi, P, Rudnitsky, S, Ruh, M, Ryckbosch, D, Sakemi, Y, Savin, I, Scarlett, C, Schäfer, A, Schmidt, F, Schmitt, H, Schnell, G, Schüler, KP, Schwind, A, Seibert, J, Shibata, TA, Shibatani, K, Shin, T, Shutov, V, Simani, C, Simon, A, Sinram, K, Slavich, P, Spengos, M, Steffens, E, Stenger, J, Stewart, J, Stoesslein, U, Sutter, M, Tallini, H, Taroian, S, Terkulov, A, Thomas, E, Tipton, B, Tytgat, M, Urciuoli, GM, van den Brand, JFJ, van der Steenhoven, G, van de Vyver, R, van Hunen, JJ, Vetterli, MC, Vikhrov, V, Vincter, MG, Visser, J, Volk, E, Wander, W, Wendland, J, Williamson, SE, Wise, T, Woller, K, Yoneyama, S & Zohrabian, H 2000, 'Nuclear effects on R = σ_L/σ_T in deep-inelastic scattering', Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, vol. 475, no. 3-4, pp. 386-394. https://doi.org/10.1016/S0370-2693(99)01493-8

@article{aaf6070641f2404989dab0db000021af,

title = "Nuclear effects on R = σL/σT in deep-inelastic scattering",

abstract = "Cross section ratios for deep-inelastic scattering from 14N and 3He with respect to 2H have been measured by the HERMES experiment at DESY using a 27.5 GeV positron beam. The data cover a range in the Bjorken scaling variable x between 0.013 and 0.65, while the negative squared four-momentum transfer Q2 varies from 0.5 to 15 GeV2. The data are compared to measurements performed by NMC, E665, and SLAC on 4He and 12C, and are found to be different for x<0.06 and Q2<1.5 GeV2. The observed difference is attributed to an A-dependence of the ratio R = σL/σT of longitudinal to transverse deep-inelastic scattering cross sections at low x and low Q2.",

author = "K. Ackerstaff and A. Airapetian and N. Akopov and I. Akushevich and M. Amarian and Aschenauer, {E. C.} and H. Avakian and R. Avakian and A. Avetissian and B. Bains and C. Baumgarten and M. Beckmann and S. Belostotski and Belz, {J. E.} and Th Benisch and S. Bernreuther and N. Bianchi and J. Blouw and H. B{\"o}ttcher and A. Borissov and M. Bouwhuis and J. Brack and S. Brauksiepe and B. Braun and B. Bray and St Brons and W. Br{\"u}ckner and A. Br{\"u}ll and Bruins, {E. E.W.} and Bulten, {H. J.} and Capitani, {G. P.} and P. Carter and P. Chumney and E. Cisbani and Court, {G. R.} and Dalpiaz, {P. F.} and {De Sanctis}, E. and {De Schepper}, D. and E. Devitsin and {de Witt Huberts}, {P. K.A.} and {Di Nezza}, P. and M. D{\"u}ren and A. Dvoredsky and G. Elbakian and J. Ely and A. Fantoni and A. Fechtchenko and M. Ferstl and K. Fiedler and Filippone, {B. W.} and H. Fischer and B. Fox and J. Franz and S. Frullani and Funk, {M. A.} and Y. G{\"a}rber and H. Gao and F. Garibaldi and G. Gavrilov and P. Geiger and V. Gharibyan and A. Golendukhin and G. Graw and O. Grebeniouk and Green, {P. W.} and Greeniaus, {L. G.} and C. Grosshauser and M. Guidal and A. Gute and V. Gyurjyan and Haas, {J. P.} and W. Haeberli and Hansen, {J. O.} and M. Hartig and D. Hasch and O. H{\"a}usser and Heinsius, {F. H.} and R. Henderson and M. Henoch and R. Hertenberger and Y. Holler and Holt, {R. J.} and W. Hoprich and H. Ihssen and M. Iodice and A. Izotov and Jackson, {H. E.} and A. Jgoun and R. Kaiser and E. Kinney and M. Kirsch and A. Kisselev and P. Kitching and H. Kobayashi and N. Koch and K. K{\"o}nigsmann and M. Kolstein and H. Kolster and V. Korotkov and W. Korsch and V. Kozlov and Kramer, {L. H.} and Krivokhijine, {V. G.} and M. Kurisuno and G. Kyle and W. Lachnit and P. Lenisa and W. Lorenzon and Makins, {N. C.R.} and Martens, {F. K.} and Martin, {J. W.} and F. Masoli and A. Mateos and M. McAndrew and K. McIlhany and McKeown, {R. D.} and F. Meissner and F. Menden and A. Metz and N. Meyners and O. Mikloukho and Miller, {C. A.} and Miller, {M. A.} and R. Milner and A. Most and V. Muccifora and R. Mussa and A. Nagaitsev and Yu Naryshkin and Nathan, {A. M.} and F. Neunreither and Niczyporuk, {J. M.} and Nowak, {W. D.} and M. Nupieri and O'Neill, {T. G.} and R. Openshaw and J. Ouyang and Owen, {B. R.} and V. Papavassiliou and Pate, {S. F.} and M. Pitt and S. Potashov and Potterveld, {D. H.} and G. Rakness and A. Reali and R. Redwine and Reolon, {A. R.} and R. Ristinen and K. Rith and P. Rossi and S. Rudnitsky and M. Ruh and D. Ryckbosch and Y. Sakemi and I. Savin and C. Scarlett and A. Sch{\"a}fer and F. Schmidt and H. Schmitt and G. Schnell and Sch{\"u}ler, {K. P.} and A. Schwind and J. Seibert and Shibata, {T. A.} and K. Shibatani and T. Shin and V. Shutov and C. Simani and A. Simon and K. Sinram and P. Slavich and M. Spengos and E. Steffens and J. Stenger and J. Stewart and U. Stoesslein and M. Sutter and H. Tallini and S. Taroian and A. Terkulov and E. Thomas and B. Tipton and M. Tytgat and Urciuoli, {G. M.} and {van den Brand}, {J. F.J.} and {van der Steenhoven}, G. and {van de Vyver}, R. and {van Hunen}, {J. J.} and Vetterli, {M. C.} and V. Vikhrov and Vincter, {M. G.} and J. Visser and E. Volk and W. Wander and J. Wendland and Williamson, {S. E.} and T. Wise and K. Woller and S. Yoneyama and H. Zohrabian",

note = "Funding Information: We gratefully acknowledge the DESY management for its support and the DESY staff and the staffs of the collaborating institutions. This work was supported by the FWO-Flanders, Belgium; the Natural Sciences and Engineering Research Council of Canada; the INTAS and TMR network contributions from the European Community; the German Bundesministerium f{\"u}r Bildung, Wissenschaft, Forschung und Technologie; the Deutscher Akademischer Austauschdienst (DAAD); the Italian Istituto Nazionale di Fisica Nucleare (INFN); Monbusho International Scientific Research Program, JSPS, and Toray Science Foundation of Japan; the Dutch Foundation for Fundamenteel Onderzoek der Materie (FOM); the U.K. Particle Physics and Astronomy Research Council; and the US Department of Energy and National Science Foundation.",

year = "2000",

month = mar,

day = "2",

doi = "10.1016/S0370-2693(99)01493-8",

language = "English (US)",

volume = "475",

pages = "386--394",

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

issn = "0370-2693",

publisher = "Elsevier B.V.",

number = "3-4",

}

TY - JOUR

T1 - Nuclear effects on R = σL/σT in deep-inelastic scattering

AU - Ackerstaff, K.

AU - Airapetian, A.

AU - Akopov, N.

AU - Akushevich, I.

AU - Amarian, M.

AU - Aschenauer, E. C.

AU - Avakian, H.

AU - Avakian, R.

AU - Avetissian, A.

AU - Bains, B.

AU - Baumgarten, C.

AU - Beckmann, M.

AU - Belostotski, S.

AU - Belz, J. E.

AU - Benisch, Th

AU - Bernreuther, S.

AU - Bianchi, N.

AU - Blouw, J.

AU - Böttcher, H.

AU - Borissov, A.

AU - Bouwhuis, M.

AU - Brack, J.

AU - Brauksiepe, S.

AU - Braun, B.

AU - Bray, B.

AU - Brons, St

AU - Brückner, W.

AU - Brüll, A.

AU - Bruins, E. E.W.

AU - Bulten, H. J.

AU - Capitani, G. P.

AU - Carter, P.

AU - Chumney, P.

AU - Cisbani, E.

AU - Court, G. R.

AU - Dalpiaz, P. F.

AU - De Sanctis, E.

AU - De Schepper, D.

AU - Devitsin, E.

AU - de Witt Huberts, P. K.A.

AU - Di Nezza, P.

AU - Düren, M.

AU - Dvoredsky, A.

AU - Elbakian, G.

AU - Ely, J.

AU - Fantoni, A.

AU - Fechtchenko, A.

AU - Ferstl, M.

AU - Fiedler, K.

AU - Filippone, B. W.

AU - Fischer, H.

AU - Fox, B.

AU - Franz, J.

AU - Frullani, S.

AU - Funk, M. A.

AU - Gärber, Y.

AU - Gao, H.

AU - Garibaldi, F.

AU - Gavrilov, G.

AU - Geiger, P.

AU - Gharibyan, V.

AU - Golendukhin, A.

AU - Graw, G.

AU - Grebeniouk, O.

AU - Green, P. W.

AU - Greeniaus, L. G.

AU - Grosshauser, C.

AU - Guidal, M.

AU - Gute, A.

AU - Gyurjyan, V.

AU - Haas, J. P.

AU - Haeberli, W.

AU - Hansen, J. O.

AU - Hartig, M.

AU - Hasch, D.

AU - Häusser, O.

AU - Heinsius, F. H.

AU - Henderson, R.

AU - Henoch, M.

AU - Hertenberger, R.

AU - Holler, Y.

AU - Holt, R. J.

AU - Hoprich, W.

AU - Ihssen, H.

AU - Iodice, M.

AU - Izotov, A.

AU - Jackson, H. E.

AU - Jgoun, A.

AU - Kaiser, R.

AU - Kinney, E.

AU - Kirsch, M.

AU - Kisselev, A.

AU - Kitching, P.

AU - Kobayashi, H.

AU - Koch, N.

AU - Königsmann, K.

AU - Kolstein, M.

AU - Kolster, H.

AU - Korotkov, V.

AU - Korsch, W.

AU - Kozlov, V.

AU - Kramer, L. H.

AU - Krivokhijine, V. G.

AU - Kurisuno, M.

AU - Kyle, G.

AU - Lachnit, W.

AU - Lenisa, P.

AU - Lorenzon, W.

AU - Makins, N. C.R.

AU - Martens, F. K.

AU - Martin, J. W.

AU - Masoli, F.

AU - Mateos, A.

AU - McAndrew, M.

AU - McIlhany, K.

AU - McKeown, R. D.

AU - Meissner, F.

AU - Menden, F.

AU - Metz, A.

AU - Meyners, N.

AU - Mikloukho, O.

AU - Miller, C. A.

AU - Miller, M. A.

AU - Milner, R.

AU - Most, A.

AU - Muccifora, V.

AU - Mussa, R.

AU - Nagaitsev, A.

AU - Naryshkin, Yu

AU - Nathan, A. M.

AU - Neunreither, F.

AU - Niczyporuk, J. M.

AU - Nowak, W. D.

AU - Nupieri, M.

AU - O'Neill, T. G.

AU - Openshaw, R.

AU - Ouyang, J.

AU - Owen, B. R.

AU - Papavassiliou, V.

AU - Pate, S. F.

AU - Pitt, M.

AU - Potashov, S.

AU - Potterveld, D. H.

AU - Rakness, G.

AU - Reali, A.

AU - Redwine, R.

AU - Reolon, A. R.

AU - Ristinen, R.

AU - Rith, K.

AU - Rossi, P.

AU - Rudnitsky, S.

AU - Ruh, M.

AU - Ryckbosch, D.

AU - Sakemi, Y.

AU - Savin, I.

AU - Scarlett, C.

AU - Schäfer, A.

AU - Schmidt, F.

AU - Schmitt, H.

AU - Schnell, G.

AU - Schüler, K. P.

AU - Schwind, A.

AU - Seibert, J.

AU - Shibata, T. A.

AU - Shibatani, K.

AU - Shin, T.

AU - Shutov, V.

AU - Simani, C.

AU - Simon, A.

AU - Sinram, K.

AU - Slavich, P.

AU - Spengos, M.

AU - Steffens, E.

AU - Stenger, J.

AU - Stewart, J.

AU - Stoesslein, U.

AU - Sutter, M.

AU - Tallini, H.

AU - Taroian, S.

AU - Terkulov, A.

AU - Thomas, E.

AU - Tipton, B.

AU - Tytgat, M.

AU - Urciuoli, G. M.

AU - van den Brand, J. F.J.

AU - van der Steenhoven, G.

AU - van de Vyver, R.

AU - van Hunen, J. J.

AU - Vetterli, M. C.

AU - Vikhrov, V.

AU - Vincter, M. G.

AU - Visser, J.

AU - Volk, E.

AU - Wander, W.

AU - Wendland, J.

AU - Williamson, S. E.

AU - Wise, T.

AU - Woller, K.

AU - Yoneyama, S.

AU - Zohrabian, H.

N1 - Funding Information: We gratefully acknowledge the DESY management for its support and the DESY staff and the staffs of the collaborating institutions. This work was supported by the FWO-Flanders, Belgium; the Natural Sciences and Engineering Research Council of Canada; the INTAS and TMR network contributions from the European Community; the German Bundesministerium für Bildung, Wissenschaft, Forschung und Technologie; the Deutscher Akademischer Austauschdienst (DAAD); the Italian Istituto Nazionale di Fisica Nucleare (INFN); Monbusho International Scientific Research Program, JSPS, and Toray Science Foundation of Japan; the Dutch Foundation for Fundamenteel Onderzoek der Materie (FOM); the U.K. Particle Physics and Astronomy Research Council; and the US Department of Energy and National Science Foundation.

PY - 2000/3/2

Y1 - 2000/3/2

N2 - Cross section ratios for deep-inelastic scattering from 14N and 3He with respect to 2H have been measured by the HERMES experiment at DESY using a 27.5 GeV positron beam. The data cover a range in the Bjorken scaling variable x between 0.013 and 0.65, while the negative squared four-momentum transfer Q2 varies from 0.5 to 15 GeV2. The data are compared to measurements performed by NMC, E665, and SLAC on 4He and 12C, and are found to be different for x<0.06 and Q2<1.5 GeV2. The observed difference is attributed to an A-dependence of the ratio R = σL/σT of longitudinal to transverse deep-inelastic scattering cross sections at low x and low Q2.

AB - Cross section ratios for deep-inelastic scattering from 14N and 3He with respect to 2H have been measured by the HERMES experiment at DESY using a 27.5 GeV positron beam. The data cover a range in the Bjorken scaling variable x between 0.013 and 0.65, while the negative squared four-momentum transfer Q2 varies from 0.5 to 15 GeV2. The data are compared to measurements performed by NMC, E665, and SLAC on 4He and 12C, and are found to be different for x<0.06 and Q2<1.5 GeV2. The observed difference is attributed to an A-dependence of the ratio R = σL/σT of longitudinal to transverse deep-inelastic scattering cross sections at low x and low Q2.

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U2 - 10.1016/S0370-2693(99)01493-8

DO - 10.1016/S0370-2693(99)01493-8

M3 - Article

AN - SCOPUS:0034594845

SN - 0370-2693

VL - 475

SP - 386

EP - 394

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 - 3-4

ER -