Measurement of the nucleon structure function F2 in the nuclear medium and evaluation of its moments
Abstract
We report on the measurement of inclusive electron scattering off a carbon target performed with CLAS at Jefferson Laboratory. A combination of three different beam energies 1.161, 2.261 and 4.461 GeV allowed us to reach an invariant mass of the final-state hadronic system W ≈ 2.4 GeV with four-momentum transfers Q2 ranging from 0.2 to 5 GeV2. These data, together with previous measurements of the inclusive electron scattering off proton and deuteron, which cover a similar continuous two-dimensional region of Q2 and Bjorken variable x, permit the study of nuclear modifications of the nucleon structure. By using these, as well as other world data, we evaluated the F2 structure function and its moments. Using an OPE-based twist expansion, we studied the Q2-evolution of the moments, obtaining a separation of the leading-twist and the total higher-twist terms. The carbon-to-deuteron ratio of the leading-twist contributions to the F2 moments exhibits the well known EMC effect, compatible with that discovered previously in x-space. The total higher-twist term in the carbon nucleus appears, although with large systematic uncertainites, to be smaller with respect to the deuteron case for n < 7, suggesting partial parton deconfinement in nuclear matter. Lastly, we speculate that the spatialmore »
- Authors:
-
- INFN, Genova (Italy); Skobeltsyn Nuclear Physics Institute, Moscow (Russia). et al.
- Publication Date:
- Research Org.:
- Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC)
- OSTI Identifier:
- 986373
- Report Number(s):
- JLAB-PHY-10-1132; DOE/OR/23177-1160; arXiv:1002.3776
Journal ID: ISSN 0375-9474; TRN: US1006338
- Grant/Contract Number:
- AC05-06OR23177
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Nuclear Physics. A
- Additional Journal Information:
- Journal Volume: 845; Journal Issue: 1-4; Journal ID: ISSN 0375-9474
- Publisher:
- Elsevier
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 43 PARTICLE ACCELERATORS; CARBON; CEBAF ACCELERATOR; DEUTERONS; ELECTRONS; EMC EFFECT; EVALUATION; FOUR MOMENTUM TRANSFER; MODIFICATIONS; NUCLEAR MATTER; NUCLEONS; PROTONS; SCATTERING; STRUCTURE FUNCTIONS; TARGETS; moments; nuclear modifications; nucleon structure; higher twists; QCD; OPE
Citation Formats
Osipenko, M. Measurement of the nucleon structure function F2 in the nuclear medium and evaluation of its moments. United States: N. p., 2010.
Web. doi:10.1016/j.nuclphysa.2010.05.059.
Osipenko, M. Measurement of the nucleon structure function F2 in the nuclear medium and evaluation of its moments. United States. https://doi.org/10.1016/j.nuclphysa.2010.05.059
Osipenko, M. Tue .
"Measurement of the nucleon structure function F2 in the nuclear medium and evaluation of its moments". United States. https://doi.org/10.1016/j.nuclphysa.2010.05.059. https://www.osti.gov/servlets/purl/986373.
@article{osti_986373,
title = {Measurement of the nucleon structure function F2 in the nuclear medium and evaluation of its moments},
author = {Osipenko, M.},
abstractNote = {We report on the measurement of inclusive electron scattering off a carbon target performed with CLAS at Jefferson Laboratory. A combination of three different beam energies 1.161, 2.261 and 4.461 GeV allowed us to reach an invariant mass of the final-state hadronic system W ≈ 2.4 GeV with four-momentum transfers Q2 ranging from 0.2 to 5 GeV2. These data, together with previous measurements of the inclusive electron scattering off proton and deuteron, which cover a similar continuous two-dimensional region of Q2 and Bjorken variable x, permit the study of nuclear modifications of the nucleon structure. By using these, as well as other world data, we evaluated the F2 structure function and its moments. Using an OPE-based twist expansion, we studied the Q2-evolution of the moments, obtaining a separation of the leading-twist and the total higher-twist terms. The carbon-to-deuteron ratio of the leading-twist contributions to the F2 moments exhibits the well known EMC effect, compatible with that discovered previously in x-space. The total higher-twist term in the carbon nucleus appears, although with large systematic uncertainites, to be smaller with respect to the deuteron case for n < 7, suggesting partial parton deconfinement in nuclear matter. Lastly, we speculate that the spatial extension of the nucleon is changed when it is immersed in the nuclear medium.},
doi = {10.1016/j.nuclphysa.2010.05.059},
journal = {Nuclear Physics. A},
number = 1-4,
volume = 845,
place = {United States},
year = {Tue Jun 01 00:00:00 EDT 2010},
month = {Tue Jun 01 00:00:00 EDT 2010}
}
Web of Science
Figures / Tables:
Works referenced in this record:
The ratio of the nucleon structure functions F2N for iron and deuterium
journal, March 1983
- Aubert, J. J.; Bassompierre, G.; Becks, K. H.
- Physics Letters B, Vol. 123, Issue 3-4
Quasi-elastic and inelastic inclusive electron scattering from an oxygen jet target
journal, June 1996
- Anghinolfi, M.; Battaglieri, M.; Bianchi, N.
- Nuclear Physics A, Vol. 602, Issue 3-4
Nuclear effects in structure functions
journal, May 1994
- Arneodo, Michele
- Physics Reports, Vol. 240, Issue 5-6
Kinematically complete measurement of the proton structure function in the resonance region and evaluation of its moments
journal, May 2003
- Osipenko, M.; Ricco, G.; Taiuti, M.
- Physical Review D, Vol. 67, Issue 9
Measurement of the deuteron structure function in the resonance region and evaluation of its moments
journal, April 2006
- Osipenko, M.; Ricco, G.; Simula, S.
- Physical Review C, Vol. 73, Issue 4
Bloom-Gilman duality of inelastic structure functions in nucleon and nuclei
journal, January 1998
- Ricco, G.; Anghinolfi, M.; Ripani, M.
- Physical Review C, Vol. 57, Issue 1
Moments of nuclear and nucleon structure functions at low and the momentum sum rule
journal, April 2006
- Niculescu, I.; Arrington, J.; Ent, R.
- Physical Review C, Vol. 73, Issue 4
Measurement of the dependence of deep-inelastic electron scattering
journal, May 1994
- Gomez, J.; Arnold, R. G.; Bosted, P. E.
- Physical Review D, Vol. 49, Issue 9
Electroproduction and Inelastic Charge Scattering from Carbon and Iron
journal, July 1988
- Baran, D. T.; Filippone, B. F.; Geesaman, D.
- Physical Review Letters, Vol. 61, Issue 4
Inclusive electron-nucleus scattering at high momentum transfer
journal, October 1993
- Day, D. B.; McCarthy, J. S.; Meziani, Z. E.
- Physical Review C, Vol. 48, Issue 4
High-energy electron scattering from 6Li and 12C
journal, October 1974
- Heimlich, F. H.; Köbberling, M.; Moritz, J.
- Nuclear Physics A, Vol. 231, Issue 3
Inclusive Electron-Nucleus Scattering at Large Momentum Transfer
journal, March 1999
- Arrington, J.; Armstrong, C. S.; Averett, T.
- Physical Review Letters, Vol. 82, Issue 10
Electron Scattering in the Excitation Region of the Delta Resonance on Nuclei with
journal, October 1984
- O'Connell, J. S.; Dodge, W. R.; Lightbody, J. W.
- Physical Review Letters, Vol. 53, Issue 17
Deep-inelastic electron scattering from carbon
journal, July 1983
- Barreau, P.; Bernheim, M.; Duclos, J.
- Nuclear Physics A, Vol. 402, Issue 3
Electroexcitation of the Δ (1232) in nuclei
journal, March 1989
- Sealock, R. M.; Giovanetti, K. L.; Thornton, S. T.
- Physical Review Letters, Vol. 62, Issue 12
Living Liqueurs.
journal, January 1988
- Prance, Ghillean T.; Duke, James A.
- Brittonia, Vol. 40, Issue 1
Quasielastic Electron Scattering and Pion Electroproduction from
journal, April 1971
- Stanfield, K. C.; Canizares, C. R.; Faissler, W. L.
- Physical Review C, Vol. 3, Issue 4
Inclusive electron scattering from nuclei at x ≃1
journal, May 1996
- Arrington, J.; Anthony, P.; Arnold, R. G.
- Physical Review C, Vol. 53, Issue 5
Quasielastic electron scattering
journal, June 1974
- Whitney, R. R.; Sick, I.; Ficenec, J. R.
- Physical Review C, Vol. 9, Issue 6
Nuclear structure functions in carbon nearx=1
journal, March 1994
- Benvenuti, A. C.; Bollini, D.; Camporesi, T.
- Zeitschrift für Physik C Particles and Fields, Vol. 63, Issue 1
A high statistics measurement of the nucleon structure function F2(x,Q2) from deep inelastic muon-carbon scattering at high Q2
journal, August 1987
- Benvenutti, A. C.; Bollini, D.; Bollini, D.
- Physics Letters B, Vol. 195, Issue 1
A measurement of the nucleon structure function from muon-carbon deep inelastic scattering at high Q2
journal, September 1981
- Bollini, D.; Frabetti, P. L.; Heiman, G.
- Physics Letters B, Vol. 104, Issue 5
Measurements of the nucleon structure function in the range 0.002 < x < 0.17 and 00.2 < Q2 < 8 GeV2 in deuterium, carbon and calcium
journal, March 1990
- Arneodo, M.; Arvidson, A.; Aubert, J. J.
- Nuclear Physics B, Vol. 333, Issue 1
Experimental Study of Nuclear Shadowing in Low- Electroproduction
journal, February 1976
- Eickmeyer, J.; Michalowski, S.; Mistry, N.
- Physical Review Letters, Vol. 36, Issue 6
Measurements of shadowing in low |Q2| electroproduction on nuclei
journal, January 1979
- Bailey, J.; Botterill, D. R.; Montgomery, H. E.
- Nuclear Physics B, Vol. 151
Shadowing effect in inelastic electron scattering on12C and27Al nuclei at small four momentum transfer
journal, December 1979
- Huber, G.; Hartwig, S.; Heimlich, F. H.
- Zeitschrift f�r Physik C Particles and Fields, Vol. 2, Issue 4
Observation of Shadowing in the Virtual-Photon Total Hadronic Cross Section on Nuclei
journal, August 1981
- Goodman, M. S.; Hall, M.; Loomis, W. A.
- Physical Review Letters, Vol. 47, Issue 5
Shadowing in inelastic scattering of muons on carbon, calcium and lead at lowx Bj
journal, September 1995
- Adams, M. R.; Aïd, S.; Anthony, P. L.
- Zeitschrift für Physik C Particles and Fields, Vol. 67, Issue 3
Measurement of the ratios of deep inelastic muon-nucleus cross sections on various nuclei compared to deuterium
journal, March 1988
- Ashman, J.; Badelek, B.; Baum, G.
- Physics Letters B, Vol. 202, Issue 4
Shadowing in deep inelastic muon scattering from nuclear targets
journal, September 1988
- Arneodo, M.; Arvidson, A.; Aubert, J. J.
- Physics Letters B, Vol. 211, Issue 4
The structure function ratios F2C/F2D and F2C/F2D at small x
journal, May 1995
- Arneodo, M.; Arvidson, A.; Badełek, B.
- Nuclear Physics B, Vol. 441, Issue 1-2
A re-evaluation of the nuclear structure function ratios for D, He, 6Li, C and Ca
journal, May 1995
- Amaudruz, P.; Arneodo, M.; Arvidson, A.
- Nuclear Physics B, Vol. 441, Issue 1-2
Precision measurement of structure function ratios for6Li,12C and40Ca
journal, March 1992
- Amaudruz, P.; Arneodo, M.; Arvidson, A.
- Zeitschrift f�r Physik C Particles and Fields, Vol. 53, Issue 1
Precision measurement of the structure function ratiosF 2 He /F 2 D ,F 2 C /F 2 D andF 2 Ca /F 2 D
journal, September 1991
- Amaudruz, P.; Arneodo, M.; Arvidson, A.
- Zeitschrift f�r Physik C Particles and Fields, Vol. 51, Issue 3
The resummation of soft gluons in hadronic collisions
journal, October 1996
- Catani, S.
- Nuclear Physics B, Vol. 478, Issue 1-2
Soft-gluon resummation for the fragmentation of light and heavy quarks at large x
journal, December 2001
- Cacciari, Matteo; Catani, Stefano
- Nuclear Physics B, Vol. 617, Issue 1-3
Moments of nucleon light cone quark distributions calculated in full lattice QCD
journal, August 2002
- Dolgov, D.; Brower, R.; Capitani, S.
- Physical Review D, Vol. 66, Issue 3
A lattice determination of moments of unpolarized nucleon structure functions using improved Wilson fermions
journal, June 2005
- Göckeler, M.; Horsley, R.; Pleiter, D.
- Physical Review D, Vol. 71, Issue 11
NNLO evolution of deep-inelastic structure functions: the non-singlet case
journal, February 2000
- van Neerven, W. L.; Vogt, A.
- Nuclear Physics B, Vol. 568, Issue 1-2
NNLO evolution of deep-inelastic structure functions: the singlet case
journal, November 2000
- van Neerven, W. L.; Vogt, A.
- Nuclear Physics B, Vol. 588, Issue 1-2
Soft gluon effects in the extraction of higher twists at large Bjorken x
journal, November 2000
- Simula, Silvano
- Physics Letters B, Vol. 493, Issue 3-4
The CEBAF large acceptance spectrometer (CLAS)
journal, May 2003
- Mecking, B. A.; Adams, G.; Ahmad, S.
- Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 503, Issue 3
The CLAS drift chamber system
journal, July 2000
- Mestayer, M. D.; Carman, D. S.; Asavapibhop, B.
- Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 449, Issue 1-2
The time-of-flight system for CLAS
journal, August 1999
- Smith, E. S.; Carstens, T.; Distelbrink, J.
- Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 432, Issue 2-3
The CLAS Cherenkov detector
journal, June 2001
- Adams, G.; Burkert, V.; Carl, R.
- Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 465, Issue 2-3
The CLAS forward electromagnetic calorimeter
journal, March 2001
- Amarian, M.; Asryan, G.; Beard, K.
- Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 460, Issue 2-3
Measurements of electron-proton elastic cross sections for
journal, July 2004
- Christy, M. E.; Ahmidouch, A.; Armstrong, C. S.
- Physical Review C, Vol. 70, Issue 1
Nucleon spectral function in complex nuclei and nuclear matter and inclusive quasielastic electron scattering
journal, June 1990
- Ciofi degli Atti, C.; Liuti, S.; Simula, S.
- Physical Review C, Vol. 41, Issue 6
Realistic model of the nucleon spectral function in few- and many-nucleon systems
journal, April 1996
- Ciofi degli Atti, C.; Simula, S.
- Physical Review C, Vol. 53, Issue 4
Two-Photon Mechanism of Particle Production by High-Energy Colliding Beams
journal, September 1971
- Brodsky, Stanley J.; Kinoshita, Toichiro; Terazawa, Hidezumi
- Physical Review D, Vol. 4, Issue 5
Radiative Corrections to Elastic and Inelastic and Scattering
journal, January 1969
- Mo, L. W.; Tsai, Y. S.
- Reviews of Modern Physics, Vol. 41, Issue 1
Radiative Corrections to Electron-Proton Scattering
journal, June 1961
- Tsai, Yung-Su
- Physical Review, Vol. 122, Issue 6
Observation of nuclear scaling in the reaction at
journal, July 2003
- Egiyan, K. Sh.; Dashyan, N.; Sargsian, M.
- Physical Review C, Vol. 68, Issue 1
Measurement of Two- and Three-Nucleon Short-Range Correlation Probabilities in Nuclei
journal, March 2006
- Egiyan, K. S.; Dashyan, N. B.; Sargsian, M. M.
- Physical Review Letters, Vol. 96, Issue 8
evolution of generalized Baldin sum rule for the proton
journal, June 2006
- Liang, Y.; Christy, M. E.; Ent, R.
- Physical Review C, Vol. 73, Issue 6
Positivity constraints for anomalous dimensions
journal, October 1973
- Nachtmann, Otto
- Nuclear Physics B, Vol. 63
Power corrections in the longitudinal and transverse structure functions of proton and deuteron
journal, August 1999
- Ricco, G.; Simula, S.; Battaglieri, M.
- Nuclear Physics B, Vol. 555, Issue 1-2
Parton-hadron duality: Resonances and higher twists
journal, July 1995
- Ji, Xiangdong; Unrau, Peter
- Physical Review D, Vol. 52, Issue 1
Neutron structure function moments at leading twist
conference, January 2007
- Osipenko, M.; Simula, S.; Kulagin, S.
- QUARK CONFINEMENT AND THE HADRON SPECTRUM VII: 7th Conference on Quark Confinement and the Hadron Spectrum - QCHS7, AIP Conference Proceedings
Total neutron cross sections may not be what they seem to be
journal, December 1971
- West, G. B.
- Physics Letters B, Vol. 37, Issue 5
Asymptotic freedom in deep inelastic processes in the leading order and beyond
journal, January 1980
- Buras, Andrzej J.
- Reviews of Modern Physics, Vol. 52, Issue 1
Parametrization of the Paris potential
journal, March 1980
- Lacombe, M.; Loiseau, B.; Richard, J. M.
- Physical Review C, Vol. 21, Issue 3
Leading twist moments of the neutron structure function
journal, February 2006
- Osipenko, M.; Melnitchouk, W.; Simula, S.
- Nuclear Physics A, Vol. 766
Probing Cold Dense Nuclear Matter
journal, June 2008
- Subedi, R.; Shneor, R.; Monaghan, P.
- Science, Vol. 320, Issue 5882
Effect of the Nuclear Medium on the Proton Investigated with the Reaction
journal, July 1986
- van der Steenhoven, G.; Blok, H. P.; van den Brand, J. F. J.
- Physical Review Letters, Vol. 57, Issue 2
Polarization Transfer in the Reaction up to
journal, July 2003
- Strauch, S.; Dieterich, S.; Aniol, K. A.
- Physical Review Letters, Vol. 91, Issue 5
Medium-modified form factors, relativistic dynamics, and the ( e ,e’p) reaction
journal, September 1987
- Cohen, T. D.; Van Orden, J. W.; Picklesimer, A.
- Physical Review Letters, Vol. 59, Issue 12
How much do nucleons change in nuclei ?
journal, February 1985
- Sick, Ingo
- Nuclear Physics A, Vol. 434
Precise Determination of the Nucleon Radius in
journal, April 1986
- McKeown, R. D.
- Physical Review Letters, Vol. 56, Issue 14
Change of confinement scale in nuclei: Predictions for structure functions confront electroproduction data
journal, March 1985
- Close, F. E.; Jaffe, R. L.; Roberts, R. G.
- Physical Review D, Vol. 31, Issue 5
Bag Models of Hadrons
journal, December 1983
- DeTar, C. E.; Donoghue, J. F.
- Annual Review of Nuclear and Particle Science, Vol. 33, Issue 1
Figures / Tables found in this record: