Measurement of the spin-dependent structure function g1(x) of the deuteron

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RESEARCH PRODUCT

Measurement of the spin-dependent structure function g1(x) of the deuteron

Alan D. Martin T. Gaussiran W. Grübler E. Burtin B. E. Bonner J. Moromisato Jay Roberts M. Grosse Perdekamp C.a. Heusch T. Layda J.a. Buchanan M. Rodriguez Rudiger Voss Takahiro Iwata S. Ishimoto S. Bültmann M. Boutemeur D. Fasching E. M. Kabuß A. Magnon S. Trentalange F. Perrot-kunne D. Pose B. Frois F. Sever K. Lau J. S. Mccarthy B. W. Mayes A. Rosado Lawrence S. Pinsky A. De Lesquen G. Gracia M. D. Corcoran P. Schiavon L. Ropelewski J. Martino Sergey M. Sergeev Günter Baum N. De Botton H. Stuhrmann J. Vogt D. Sanders D. Crabb R. Seitz F. Feinstein T. Pussieux S. Eichblatt N Horikawa L. Betev Shafqat Ahmad D. Peshekhonov J. Kyynäräinen G.s. Mutchler E. Von Goeler J.m. Clement J. Lichtenstadt J. Saborido G. Smirnov A. Witzmann S. K. Dhawan I. Sabo A. Sandacz J. Pyrlik P. Shanahan M. De Jong H. Postma V. Kukhtin F. Tessarotto H. J. Kessler P. Björkholm G. Igo A. Arvidson Tjeerd Ketel C. Dulya S. Platchkov N. Hayashi J. Mitchell C. Cavata A. Brüll N.i. Zamiatin M. Plo Vernon W. Hughes A. Karev David Miller I. G. Bird S. Lopez-ponte S. Lopez-ponte J. A. Garzon J. A. Garzon Franco Bradamante R. Birsa S. Okumi Yu. Kisselev Ricardo Piegaia Roy Weinstein M. Giorgi A. Kishi W. Knop R. Windmolders R. Windmolders L. Klostermann S. Dalla Torre M. Lowe C. Garabatos B. Neganov I. Savin T. Lindqvist M. Clocchiatti Y. Tzamouranis Aldo Penzo Gerhard K. Mallot A. Steinmetz W. Thiel L. Gatignon Patrick Hautle T. ÇUhadar G. Bardin M. Ballintijn M. Ballintijn J. M. Rieubland J. Nassalski K.m. Teichert A. Yañez Wojciech Wislicki M. Lamanna Donal Day Guillermo Mesa Perez I.a. Goloutvin T. O. Niinikoski B. Badelek B. Badelek C. Fernandez C. Fernandez J. Cranshaw Per Berglund Per Berglund Julien Faivre Andrés Gómez Andrés Gómez I. Kiryushin J. Oberski A. Staude J. P. Chen V. Krivokhijine F. Lehar Ulrich Landgraf Alessandro Bressan D. Von Harrach Mayda Velasco F. Marie R. Van Dantzig G. Van Middelkoop C. A. Whitten P. Schuler K. Mori R. Kaiser Anna Zanetti R. Segel A. Rijllart Bernardo Adeva A. Dyring L. Naumann T. Hasegawa E. Rondio G. Salvato M. Litmaath

subject

deuteron: polarized target Nuclear and High Energy Physics INELASTIC E-P; POLARIZED PROTONS; SUM-RULE; SCATTERING; ELECTROPRODUCTION; ASYMMETRY INELASTIC E-P Proton polarized target: deuteron deep inelastic scattering: muon deuteron structure function: spin muon deuteron: deep inelastic scattering SUM-RULE 530 Nuclear physics INELASTIC E-P; POLARIZED PROTONS; SUM-RULE; SCATTERING; ELECTROPRODUCTION; ASYMMETRY; MODEL TheoryofComputation_ANALYSISOFALGORITHMSANDPROBLEMCOMPLEXITY SCATTERING Neutron polarized beam: muon Spin-½ Physics Quantum chromodynamics spin: structure function Muon Scattering deuteron: structure function ELECTROPRODUCTION nucleon: structure function CERN SPS Deep inelastic scattering moment magnetic spectrometer: experimental results POLARIZED PROTONS approx. 100 GeV ASYMMETRY Sum rule in quantum mechanics muon: polarized beam Particle Physics - Experiment

description

We report on the first measurement of the spin-dependent structure function g1d of the deuteron in the deep inelastic scattering of polarised muons off polarised deuterons, in the kinematical range 0.006<x<0.6, 1 GeV2<Q2<30 GeV2. The first moment, Γ1d=sh{phonetic}01 g1d dx=0.023±0.020 (stat.) ± 0.015 (syst.), is smaller than the prediction of the Ellis-Jaffe sum rules. Using earlier measurements of g1p, we infer the first moment of the spin-dependent neutron structure function g1n. The difference Γ1p-Γ1n=0.20 ±0.05 (stat.) ± 0.04 (syst.) agrees with the prediction of the Bjorken sum rule, Γ1p-Γ1n=0.191 ±0.002.

year	journal	country	edition	language
1993-04-01	Physics Letters B

https://doi.org/10.1016/0370-2693(93)90438-n