Nuclear effects on R = sigma(L)/sigma(T) in deep-inelastic scattering

HERMES Collaboration

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

Nuclear effects on R = sigma(L)/sigma(T) in deep-inelastic scattering

HERMES Collaboration

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

Abstract

Cross section ratios for deep-inelastic scattering from N-14 and He-3 with respect to H-2 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 Q(2) Varies from 0.5 to 15 GeV2. The data are compared to measurements performed by NMC, E665, and SLAG on He-4 and C-12, and rue found to be different for x < 0.06 and Q(2) < 1.5 GeV2. The observed difference is attributed to an A-dependence of the ratio R = sigma(L)/sigma(Gamma) of longitudinal to transverse deep-inelastic scattering cross sections at low x and low Q(2). (C) 2000 Elsevier Science B.V. All rights reserved.

Original language	English
Pages (from-to)	386-394
Number of pages	9
Journal	Physics Letters B
Volume	475
Issue number	3-4
DOIs	https://doi.org/10.1016/S0370-2693(99)01493-8
Publication status	Published - 2 Mar 2000
Externally published	Yes

Keywords

STRUCTURE-FUNCTION RATIOS
R=SIGMA-L/SIGMA-T
ELECTRON-SCATTERING
ELECTROMAGNETIC CORRECTIONS
MUON SCATTERING
Q(2) DEPENDENCE
GLOBAL ANALYSIS
CROSS-SECTIONS
DISTRIBUTIONS
DEUTERIUM

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10.1016/S0370-2693(99)01493-8

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@article{1dd60faf765648958be321f4f5315062,

title = "Nuclear effects on R = sigma(L)/sigma(T) in deep-inelastic scattering",

abstract = "Cross section ratios for deep-inelastic scattering from N-14 and He-3 with respect to H-2 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 Q(2) Varies from 0.5 to 15 GeV2. The data are compared to measurements performed by NMC, E665, and SLAG on He-4 and C-12, and rue found to be different for x < 0.06 and Q(2) < 1.5 GeV2. The observed difference is attributed to an A-dependence of the ratio R = sigma(L)/sigma(Gamma) of longitudinal to transverse deep-inelastic scattering cross sections at low x and low Q(2). (C) 2000 Elsevier Science B.V. All rights reserved.",

keywords = "STRUCTURE-FUNCTION RATIOS, R=SIGMA-L/SIGMA-T, ELECTRON-SCATTERING, ELECTROMAGNETIC CORRECTIONS, MUON SCATTERING, Q(2) DEPENDENCE, GLOBAL ANALYSIS, CROSS-SECTIONS, DISTRIBUTIONS, DEUTERIUM",

author = "K. Ackerstaff and A. Airapetian and N. Akopov and I. Akushevich and M. Amarian and E.C. Aschenauer and H. Avakian and R. Avakian and A. Avetissian and B. Bains and C. Baumgarten and M. Beckmann and S. Belostotski and J.E. Belz and T. Benisch and S. Bernreuther and N. Bianchi and J. Blouw and H. Bottcher and A. Borissov and M. Bouwhuis and J. Brack and S. Brauksiepe and B. Braun and B. Bray and S. Brons and W. Bruckner and A. Brull and E.E.W. Bruins and H.J. Bulten and G.P. Capitani and P. Carter and P. Chumney and E. Cisbani and G.R. Court and P.F. Dalpiaz and {De Sanctis}, E. and {De Schepper}, D. and E. Devitsin and P.K.A.D. Huberts and {Di Nezza}, P. and M. Duren and A. Dvoredsky and G. Elbakian and J. Ely and A. Fantoni and A. Fechtchenko and M. Ferstl and K. Fiedler and {van den Brand}, J.F.J. and {HERMES Collaboration}",

year = "2000",

month = mar,

day = "2",

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

language = "English",

volume = "475",

pages = "386--394",

journal = "Physics Letters B",

issn = "0370-2693",

publisher = "Elsevier B.V.",

number = "3-4",

}

TY - JOUR

T1 - Nuclear effects on R = sigma(L)/sigma(T) 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, T.

AU - Bernreuther, S.

AU - Bianchi, N.

AU - Blouw, J.

AU - Bottcher, H.

AU - Borissov, A.

AU - Bouwhuis, M.

AU - Brack, J.

AU - Brauksiepe, S.

AU - Braun, B.

AU - Bray, B.

AU - Brons, S.

AU - Bruckner, W.

AU - Brull, 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 - Huberts, P.K.A.D.

AU - Di Nezza, P.

AU - Duren, M.

AU - Dvoredsky, A.

AU - Elbakian, G.

AU - Ely, J.

AU - Fantoni, A.

AU - Fechtchenko, A.

AU - Ferstl, M.

AU - Fiedler, K.

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

AU - HERMES Collaboration

PY - 2000/3/2

Y1 - 2000/3/2

N2 - Cross section ratios for deep-inelastic scattering from N-14 and He-3 with respect to H-2 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 Q(2) Varies from 0.5 to 15 GeV2. The data are compared to measurements performed by NMC, E665, and SLAG on He-4 and C-12, and rue found to be different for x < 0.06 and Q(2) < 1.5 GeV2. The observed difference is attributed to an A-dependence of the ratio R = sigma(L)/sigma(Gamma) of longitudinal to transverse deep-inelastic scattering cross sections at low x and low Q(2). (C) 2000 Elsevier Science B.V. All rights reserved.

AB - Cross section ratios for deep-inelastic scattering from N-14 and He-3 with respect to H-2 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 Q(2) Varies from 0.5 to 15 GeV2. The data are compared to measurements performed by NMC, E665, and SLAG on He-4 and C-12, and rue found to be different for x < 0.06 and Q(2) < 1.5 GeV2. The observed difference is attributed to an A-dependence of the ratio R = sigma(L)/sigma(Gamma) of longitudinal to transverse deep-inelastic scattering cross sections at low x and low Q(2). (C) 2000 Elsevier Science B.V. All rights reserved.

KW - STRUCTURE-FUNCTION RATIOS

KW - R=SIGMA-L/SIGMA-T

KW - ELECTRON-SCATTERING

KW - ELECTROMAGNETIC CORRECTIONS

KW - MUON SCATTERING

KW - Q(2) DEPENDENCE

KW - GLOBAL ANALYSIS

KW - CROSS-SECTIONS

KW - DISTRIBUTIONS

KW - DEUTERIUM

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

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

M3 - Article

SN - 0370-2693

VL - 475

SP - 386

EP - 394

JO - Physics Letters B

JF - Physics Letters B

IS - 3-4

ER -

Nuclear effects on R = sigma(L)/sigma(T) in deep-inelastic scattering

Abstract

Keywords

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