Measurements of the separated longitudinal structure function FL from hydrogen and deuterium targets at low Q2

Tvaskis, V.; Tvaskis, A.; Niculescu, I.; Abbott, D.; Adams, G. S.; Afanasev, A.; Ahmidouch, A.; Angelescu, T.; Arrington, J.; Asaturyan, R.; Avery, S.; Baker, O. K.; Benmouna, N.; Berman, B. L.; Biselli, A.; Blok, H. P.; Boeglin, W. U.; Bosted, P. E.; Brash, E.; Breuer, H.; Chang, G.; Chant, N.; Christy, M. E.; Connell, S. H.; Dalton, M. M.; Danagoulian, S.; Day, D.; Dodario, T.; Dunne, J. A.; Dutta, D.; El Khayari, N.; Ent, R.; Fenker, H. C.; Frolov, V. V.; Gaskell, D.; Garrow, K.; Gilman, R.; Gueye, P.; Hafidi, K.; Hinton, W.; Holt, R. J.; Horn, T.; Huber, G. M.; Jackson, H.; Jiang, X.; Jones, M. K.; Joo, K.; Kelly, J. J.; Keppel, C. E.; Kuhn, J.; Kinney, E.; Klein, A.; Kubarovsky, V.; Liang, Y.; Lolos, G.; Lung, A.; Mack, D.; Malace, S.; Markowitz, P.; Mbianda, G.; McGrath, E.; Mckee, D.; Meekins, D. G.; Mkrtchyan, H.; Napolitano, J.; Navasardyan, T.; Niculescu, G.; Nozar, M.; Ostapenko, T.; Papandreou, Z.; Potterveld, D.; Reimer, P. E.; Reinhold, J.; Roche, J.; Rock, S. E.; Schulte, E.; Segbefia, E.; Smith, C.; Smith, G. R.; Stoler, P.; Tadevosyan, V.; Tang, L.; Telfeyan, J.; Todor, L.; Ungaro, M.; Uzzle, A.; Vidakovic, S.; Villano, A.; Vulcan, W. F.; Warren, G.; Wesselmann, F.; Wojtsekhowski, B.; Wood, S. A.; Yan, C.; Zihlmann, B.

doi:10.1103/PhysRevC.97.045204

Title: Measurements of the separated longitudinal structure function $F_{L}$ from hydrogen and deuterium targets at low $Q^{2}$

Journal Article · 26 April 2018 · Physical Review C

DOI: https://doi.org/10.1103/PhysRevC.97.045204 · OSTI ID:1435415

Tvaskis, V. ^[1]; Tvaskis, A. ^[1]; Niculescu, I. ^[2]; Abbott, D. ^[3]; Adams, G. S. ^[4]; Afanasev, A. ^[3]; Ahmidouch, A. ^[5]; Angelescu, T. ^[6]; Arrington, J. ^[7]; Asaturyan, R. ^[8]; Avery, S. ^[1]; Baker, O. K. ^[9]; Benmouna, N. ^[10]; Berman, B. L. ^[10]; Biselli, A. ^[11]; Blok, H. P. ^[12]; Boeglin, W. U. ^[13]; Bosted, P. E. ^[14]; Brash, E. ^[15]; Breuer, H. ^[16] more »

Hampton Univ., Hampton, VA (United States)
James Madison Univ., Harrisonburg, VA (United States)
Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
Rensselaer Polytechnic Inst., Troy, NY (United States)
North Carolina A&T State Univ., Greensboro, NC (United States)
Bucharest Univ., Magurele (Romania)
Argonne National Lab. (ANL), Argonne, IL (United States)
Yerevan Physics Inst. (YerPhI) (Armenia)
Hampton Univ., Hampton, VA (United States); Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
The George Washington Univ., Washington, D.C. (United States)
Carnegie Mellon Univ., Pittsburgh, PA (United States)
Vrije Univ., Amsterdam (The Netherlands); Nikhef, Amsterdam (The Netherlands)
Florida International Univ., University Park, FL (United States)
Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States); Univ. of Massachusetts, Amherst, MA (United States)
Univ. of Regina, Regina, SK (Canada)
Univ. of Maryland, College Park, MD (United States)
Univ. of the Witwatersrand, Johannesburg (South Africa)
Univ. of Virginia, Charlottesville, VA (United States)
Univ. of Houston, Houston, TX (United States)
Mississippi State Univ., Mississippi State, MS (United States)
Triangle Univ. Nuclear Lab and Duke Univ., Durham, NC (United States)
California Inst. of Technology (CalTech), Pasadena, CA (United States)
Univ. of Saskatchewan, Saskatoon, SK (Canada)
Rutgers, The State Univ. of New Jersey, Piscataway, NJ (United States)
Univ. of Connecticut, Storrs, CT (United States)
Univ. of Colorado, Boulder, CO (United States)
Old Dominion Univ., Norfolk, VA (United States)
Ohio Univ., Athens, OH (United States)
Arizona State Univ., Tempe, AZ (United States)
Gettysburg College, Gettysburg, PA (United States)
Univ. of Massachusetts, Amherst, MA (United States)

Structure functions, as measured in lepton-nucleon scattering, have proven to be very useful in studying the partonic dynamics within the nucleon. Furthermore, it is experimentally difficult to separately determine the longitudinal and transverse structure functions, and consequently there are substantially less data available in particular for the longitudinal structure function. Here, we present separated structure functions for hydrogen and deuterium at low four-momentum transfer squared, Q² < 1 GeV², and compare them with parton distribution parametrization and k_T factorization approaches. While differences are found, the parametrizations generally agree with the data, even at the very low-Q² scale of the data. The deuterium data show a smaller longitudinal structure function and a smaller ratio of longitudinal to transverse cross section, R, than the proton. This suggests either an unexpected difference in R for the proton and the neutron or a suppression of the gluonic distribution in nuclei.

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Research Organization:: Thomas Jefferson National Accelerator Facility, Newport News, VA (United States)

Sponsoring Organization:: USDOE Office of Science (SC), Nuclear Physics (NP)

Grant/Contract Number:: AC05-06OR23177; AC02-06CH11357

OSTI ID:: 1435415

Report Number(s):: JLAB-PHY--16-2295; DOE/OR/23177--3874; arXiv:1606.02614

Journal Information:: Physical Review C, Journal Name: Physical Review C Journal Issue: 4 Vol. 97; ISSN PRVCAN; ISSN 2469-9985

Publisher:: American Physical Society (APS)Copyright Statement

Country of Publication:: United States

Language:: English

References (52)

Measurement of the longitudinal structure function and the smallx gluon density of the proton Cooper-Sarkar, A. M.; Ingelman, G.; Long, K. R. Zeitschrift für Physik C Particles and Fields, Vol. 39, Issue 2 https://doi.org/10.1007/BF01551005	journal	June 1988
Precision measurement of $R= \sigma_L/\sigma_T$ on hydrogen, deuterium, and beryllium targets in deep inelastic electron scattering Tao et al., L. H. Zeitschrift f�r Physik C Particles and Fields, Vol. 70, Issue 3 https://doi.org/10.1007/s002880050117	journal	April 1996
A model for F L and R = F L / F T at low x and low Q 2 Badełek, B.; Kwieciński, J.; Staśto, A. Zeitschrift f�r Physik C Particles and Fields, Vol. 74, Issue 2 https://doi.org/10.1007/s002880050391	journal	April 1997
The High Momentum Spectrometer drift chambers in Hall C at CEBAF Baker, O. K.; Beaufait, J.; Carlini, R. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 367, Issue 1-3 https://doi.org/10.1016/0168-9002(95)00737-7	journal	December 1995
Transverse momentum of jets in electroproduction from quantum chromodynamics Altarelli, G.; Martinelli, G. Physics Letters B, Vol. 76, Issue 1 https://doi.org/10.1016/0370-2693(78)90109-0	journal	May 1978
A high statistics measurement of the proton structure functions F2(x, Q2) and R from deep inelastic muon scattering at high Q2 Benvenuti, A. C.; Bollini, D.; Bruni, G. Physics Letters B, Vol. 223, Issue 3-4 https://doi.org/10.1016/0370-2693(89)91637-7	journal	June 1989
A precise extraction of R=σL/σT from a global analysis of the SLAC deep inelastic e-p and e-d scattering cross sections Whitlow, L. W.; Rock, S.; Bodek, A. Physics Letters B, Vol. 250, Issue 1-2 https://doi.org/10.1016/0370-2693(90)91176-C	journal	November 1990
Precise measurements of the proton and deuteron structure functions from a global analysis of the SLAC deep inelastic electron scattering cross sections Whitlow, L. W.; Riordan, E. M.; Dasu, S. Physics Letters B, Vol. 282, Issue 3-4 https://doi.org/10.1016/0370-2693(92)90672-Q	journal	May 1992
On the lowest order electroweak corrections to fermion scattering Bardin, D. Yu.; Christova, P. Ch.; Fedorenko, O. M. Nuclear Physics B, Vol. 197, Issue 1 https://doi.org/10.1016/0550-3213(82)90152-3	journal	March 1982
Nuclear effects on R=σL/σT in deep-inelastic scattering Ackerstaff, K.; Airapetian, A.; Akopov, N. Physics Letters B, Vol. 475, Issue 3-4 https://doi.org/10.1016/S0370-2693(99)01493-8	journal	March 2000
Measurement of the proton and deuteron structure functions, F2p and F2d, and of the ratio Arneodo, M.; Arvidson, A.; Badełek, B. Nuclear Physics B, Vol. 483, Issue 1-2 https://doi.org/10.1016/S0550-3213(96)00538-X	journal	January 1997
Accurate measurement of F2d/F2p and Rd − Rp Arneodo, M.; Arvidson, A.; Badełek, B. Nuclear Physics B, Vol. 487, Issue 1-2 https://doi.org/10.1016/S0550-3213(96)00673-6	journal	March 1997
The lead-glass electromagnetic calorimeters for the magnetic spectrometers in Hall C at Jefferson Lab Mkrtchyan, H.; Carlini, R.; Tadevosyan, V. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 719 https://doi.org/10.1016/j.nima.2013.03.070	journal	August 2013
Calculation of two-photon exchange effects for Δ production in electron–proton collisions Kondratyuk, S.; Blunden, P. G. Nuclear Physics A, Vol. 778, Issue 1-2 https://doi.org/10.1016/j.nuclphysa.2006.07.038	journal	October 2006
Erratum to: “Nuclear effects on R=σ/σ in deep-inelastic scattering” Airapetian, A.; Akopov, N.; Akopov, Z. Physics Letters B, Vol. 567, Issue 3-4 https://doi.org/10.1016/j.physletb.2003.06.044	journal	August 2003
The new FL measurement from HERA and the dipole model Ewerz, Carlo; von Manteuffel, Andreas; Nachtmann, Otto Physics Letters B, Vol. 720, Issue 1-3 https://doi.org/10.1016/j.physletb.2013.02.013	journal	March 2013
Review of two-photon exchange in electron scattering Arrington, J.; Blunden, P. G.; Melnitchouk, W. Progress in Particle and Nuclear Physics, Vol. 66, Issue 4 https://doi.org/10.1016/j.ppnp.2011.07.003	journal	October 2011
Neutron structure functions Arrington, J.; Coester, F.; Holt, R. J. Journal of Physics G: Nuclear and Particle Physics, Vol. 36, Issue 2 https://doi.org/10.1088/0954-3899/36/2/025005	journal	December 2008
Radiative Corrections to Electron-Proton Scattering Tsai, Yung-Su Physical Review, Vol. 122, Issue 6 https://doi.org/10.1103/PhysRev.122.1898	journal	June 1961
High Energy Elastic Scattering of Electrons on Protons Rosenbluth, M. N. Physical Review, Vol. 79, Issue 4 https://doi.org/10.1103/PhysRev.79.615	journal	August 1950
Quasielastic ( e , e ′ p ) reaction on C 12 , Fe 56 , and Au 197 Dutta, D.; van Westrum, D.; Abbott, D. Physical Review C, Vol. 68, Issue 6 https://doi.org/10.1103/PhysRevC.68.064603	journal	December 2003
Measurements of electron-proton elastic cross sections for 0.4 < Q 2 < 5.5 ( GeV ∕ c ) 2 Christy, M. E.; Ahmidouch, A.; Armstrong, C. S. Physical Review C, Vol. 70, Issue 1 https://doi.org/10.1103/PhysRevC.70.015206	journal	July 2004
Experimental constraints on nonlinearities induced by two-photon effects in elastic and inelastic Rosenbluth separations Tvaskis, V.; Arrington, J.; Christy, M. E. Physical Review C, Vol. 73, Issue 2 https://doi.org/10.1103/PhysRevC.73.025206	journal	February 2006
Global analysis of proton elastic form factor data with two-photon exchange corrections Arrington, J.; Melnitchouk, W.; Tjon, J. A. Physical Review C, Vol. 76, Issue 3 https://doi.org/10.1103/PhysRevC.76.035205	journal	September 2007
Empirical fit to inelastic electron-deuteron and electron-neutron resonance region transverse cross sections Bosted, P. E.; Christy, M. E. Physical Review C, Vol. 77, Issue 6 https://doi.org/10.1103/PhysRevC.77.065206	journal	June 2008
Applications of quark-hadron duality in the F 2 structure function Malace, S. P.; Adams, G. S.; Ahmidouch, A. Physical Review C, Vol. 80, Issue 3 https://doi.org/10.1103/PhysRevC.80.035207	journal	September 2009
Empirical fit to precision inclusive electron-proton cross sections in the resonance region Christy, M. E.; Bosted, P. E. Physical Review C, Vol. 81, Issue 5 https://doi.org/10.1103/PhysRevC.81.055213	journal	May 2010
Final analysis of proton form factor ratio data at Q 2 = 4.0 , 4.8, and 5.6 GeV 2 Puckett, A. J. R.; Brash, E. J.; Gayou, O. Physical Review C, Vol. 85, Issue 4 https://doi.org/10.1103/PhysRevC.85.045203	journal	April 2012
Impact of nuclear dependence of R = σ L / σ T on antishadowing in nuclear structure functions Guzey, Vadim; Zhu, Lingyan; Keppel, Cynthia E. Physical Review C, Vol. 86, Issue 4 https://doi.org/10.1103/PhysRevC.86.045201	journal	October 2012
Measurement of kinematic and nuclear dependence of R = σ L σ T in deep inelastic electron scattering Dasu, S.; de Barbaro, P.; Bodek, A. Physical Review D, Vol. 49, Issue 11 https://doi.org/10.1103/PhysRevD.49.5641	journal	June 1994
Dynamical next-to-next-to-leading order parton distributions Jimenez-Delgado, P.; Reya, E. Physical Review D, Vol. 79, Issue 7 https://doi.org/10.1103/PhysRevD.79.074023	journal	April 2009
F L proton structure function from the unified DGLAP/BFKL approach Golec-Biernat, K.; Staśto, A. M. Physical Review D, Vol. 80, Issue 1 https://doi.org/10.1103/PhysRevD.80.014006	journal	July 2009
3-, 4-, and 5-flavor next-to-next-to-leading order parton distribution functions from deep-inelastic-scattering data and at hadron colliders Alekhin, S.; Blümlein, J.; Klein, S. Physical Review D, Vol. 81, Issue 1 https://doi.org/10.1103/PhysRevD.81.014032	journal	January 2010
Uncertainties in determining parton distributions at large x Accardi, A.; Melnitchouk, W.; Owens, J. F. Physical Review D, Vol. 84, Issue 1 https://doi.org/10.1103/PhysRevD.84.014008	journal	July 2011
Constraints on the large- x d / u ratio from electron-nucleus scattering at x > 1 Hen, O.; Accardi, A.; Melnitchouk, W. Physical Review D, Vol. 84, Issue 11 https://doi.org/10.1103/PhysRevD.84.117501	journal	December 2011
Parton distribution functions and benchmark cross sections at next-to-next-to-leading order Alekhin, S.; Blümlein, J.; Moch, S. Physical Review D, Vol. 86, Issue 5 https://doi.org/10.1103/PhysRevD.86.054009	journal	September 2012
F 2 and F L at small x using a collinearly improved BFKL resummation Hentschinski, Martin; Sabio Vera, Agustín; Salas, Clara Physical Review D, Vol. 87, Issue 7 https://doi.org/10.1103/PhysRevD.87.076005	journal	April 2013
Deep inelastic cross-section measurements at large y with the ZEUS detector at HERA Abramowicz, H.; Abt, I.; Adamczyk, L. Physical Review D, Vol. 90, Issue 7 https://doi.org/10.1103/PhysRevD.90.072002	journal	October 2014
Recoil Polarization Measurements of the Proton Electromagnetic Form Factor Ratio to Q 2 = 8.5 GeV 2 Puckett, A. J. R.; Brash, E. J.; Jones, M. K. Physical Review Letters, Vol. 104, Issue 24 https://doi.org/10.1103/PhysRevLett.104.242301	journal	June 2010
How Well Do We Know the Neutron Structure Function? Arrington, J.; Rubin, J. G.; Melnitchouk, W. Physical Review Letters, Vol. 108, Issue 25 https://doi.org/10.1103/PhysRevLett.108.252001	journal	June 2012
Towards a Resolution of the Proton Form Factor Problem: New Electron and Positron Scattering Data Adikaram, D.; Rimal, D.; Weinstein, L. B. Physical Review Letters, Vol. 114, Issue 6 https://doi.org/10.1103/PhysRevLett.114.062003	journal	February 2015
Measurement of the Two-Photon Exchange Contribution to the Elastic e ± p Scattering Cross Sections at the VEPP-3 Storage Ring Rachek, I. A.; Arrington, J.; Dmitriev, V. F. Physical Review Letters, Vol. 114, Issue 6 https://doi.org/10.1103/PhysRevLett.114.062005	journal	February 2015
Precision Measurement of R = σ L σ T and F 2 in Deep-Inelastic Electron Scattering Dasu, S.; de Barbaro, P.; Bodek, A. Physical Review Letters, Vol. 61, Issue 9 https://doi.org/10.1103/PhysRevLett.61.1061	journal	August 1988
Quasifree ( e , e ′ p ) Reactions and Proton Propagation in Nuclei Abbott, D.; Ahmidouch, A.; Amatuni, Ts. A. Physical Review Letters, Vol. 80, Issue 23 https://doi.org/10.1103/PhysRevLett.80.5072	journal	June 1998
Two-Photon-Exchange Effects in the Electroexcitation of the Δ Resonance Pascalutsa, Vladimir; Carlson, Carl E.; Vanderhaeghen, Marc Physical Review Letters, Vol. 96, Issue 1 https://doi.org/10.1103/PhysRevLett.96.012301	journal	January 2006
Longitudinal-Transverse Separations of Deep-Inelastic Structure Functions at Low Q 2 for Hydrogen and Deuterium Tvaskis, V.; Christy, M. E.; Arrington, J. Physical Review Letters, Vol. 98, Issue 14 https://doi.org/10.1103/PhysRevLett.98.142301	journal	April 2007
Radiative Corrections to Elastic and Inelastic ep and up Scattering Mo, L. W.; Tsai, Y. S. Reviews of Modern Physics, Vol. 41, Issue 1 https://doi.org/10.1103/RevModPhys.41.205	journal	January 1969
The low- Q 2 , low- X region in electroproduction Badełek, B.; Kwieciński, J. Reviews of Modern Physics, Vol. 68, Issue 2 https://doi.org/10.1103/RevModPhys.68.445	journal	April 1996
Measurement of the inclusive e ± p scattering cross section at high inelasticity y and of the structure function F L Aaron, F. D.; Alexa, C.; Andreev, V. The European Physical Journal C, Vol. 71, Issue 3 https://doi.org/10.1140/epjc/s10052-011-1579-4	journal	March 2011
Analysis of the proton longitudinal structure function from the gluon distribution function Boroun, G. R.; Rezaei, B. The European Physical Journal C, Vol. 72, Issue 11 https://doi.org/10.1140/epjc/s10052-012-2221-9	journal	November 2012
HARD-POMERON BEHAVIOR OF THE LONGITUDINAL STRUCTURE FUNCTION F _L IN THE NEXT-TO-LEADING ORDER AT LOW x Boroun, G. R. International Journal of Modern Physics E, Vol. 18, Issue 01 https://doi.org/10.1142/S0218301309012057	journal	January 2009
Two-Photon Physics in Hadronic Processes Carlson, Carl E.; Vanderhaeghen, Marc Annual Review of Nuclear and Particle Science, Vol. 57, Issue 1 https://doi.org/10.1146/annurev.nucl.57.090506.123116	journal	November 2007

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Title: Measurements of the separated longitudinal structure function F L from hydrogen and deuterium targets at low Q2

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Title: Measurements of the separated longitudinal structure function $F_{L}$ from hydrogen and deuterium targets at low $Q^{2}$