Measurements of Nonsinglet Moments of the Nucleon Structure Functions and Comparison to Predictions from Lattice QCD for Q2=4 GeV2 (CROSBI ID 289456)
Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija
Podaci o odgovornosti
Albayrak, I. ; Mamyan, V. ; Christy, M. E. ; Ahmidouch, A. ; Arrington, J. ; Asaturyan, A. ; Bodek, A. ; Bosted, P. ; Bradford, R. ; Brash, E. ; Bruell, A. ; Butuceanu, C. ; Coleman, S. J. ; Commisso, M. ; Connell, S. H. ; Dalton, M. M. ; Danagoulian, S. ; Daniel, A. ; Day, D. B. ; Dhamija, S. ; Dunne, J. ; Dutta, D. ; Ent, R. ; Gaskell, D. ; Gasparian, A. ; Gran, R. ; Horn, T. ; Huang, Liting ; Huber, G. M. ; Jayalath, C. ; Johnson, M. ; Jones, M. K. ; Kalantarians, N. ; Liyanage, A. ; Keppel, C. E. ; Kinney, E. ; Li, Y. ; Malace, S. ; Manly, S. ; Markowitz, P. ; Maxwell, J. ; Mbianda, N. N. ; McFarland, K. S. ; Meziane, M. ; Meziani, Z. E. ; Mills, G. B. ; Mkrtchyan, H. ; Mkrtchyan, A. ; Mulholland, J. ; Nelson, J. ; Niculescu, G. ; Niculescu, I. ; Pentchev, L. ; Puckett, A. ; Punjabi, V. ; Qattan, I. A. ; Reimer, P. E. ; Reinhold, J. ; Rodriguez, V. M. ; Rondon- Aramayo, O. ; Sakuda, M. ; Sakumoto, W. K. ; Segbefia, E. ; Seva, T. ; Sick, I. ; Slifer, K. ; Smith, G. R. ; Steinman, J. ; Solvignon, P. ; Tadevosyan, V. ; Tajima, S. ; Tvaskis, V. ; Vulcan, W. F. ; Walton, T. ; Wesselmann, F. R. ; Wood, S. A. ; Ye, Zhihong ; E06-009 Collaboration
E06-009 Collaboration
engleski
Measurements of Nonsinglet Moments of the Nucleon Structure Functions and Comparison to Predictions from Lattice QCD for Q2=4 GeV2
We present extractions of the nucleon nonsinglet moments utilizing new precision data on the deuteron F 2 structure function at large Bjorken- x determined via the Rosenbluth separation technique at Jefferson Lab Experimental Hall C. These new data are combined with a complementary set of data on the proton previously measured in Hall C at similar kinematics and world datasets on the proton and deuteron at lower x measured at SLAC and CERN. The new Jefferson Lab data provide coverage of the upper third of the x range, crucial for precision determination of the higher moments. In contrast to previous extractions, these moments have been corrected for nuclear effects in the deuteron using a new global fit to the deuteron and proton data. The obtained experimental moments represent an order of magnitude improvement in precision over previous extractions using high x data. Moreover, recent exciting developments in lattice QCD calculations provide a first ever comparison of these new experimental results with calculations of moments carried out at the physical pion mass, as well as a new approach that first calculates the quark distributions directly before determining moments.
nucleon nonsinglet moments
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Podaci o izdanju
123 (2)
2019.
022501
7
objavljeno
0031-9007
1079-7114
10.1103/physrevlett.123.022501
Povezanost rada
Fizika
