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Polarisation of valence and non-strange sea quarks in the nucleon from semi-inclusive spin asymmetries
We present a measurement of semi-inclusive spin asymmetries for positively and negatively charged hadrons from deep inelastic scattering of polarised muons on polarised protons and deuterons in the range 0.003<x<0.7. From these asymmetries and the previously published inclusive spin asymmetrie...
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| Lenguaje: | eng |
| Publicado: |
1995
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| Materias: | |
| Acceso en línea: | https://dx.doi.org/10.1016/0370-2693(95)01584-1 http://cds.cern.ch/record/294832 |
| _version_ | 1780888883188203520 |
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| author | Adeva, B Arik, E Arvidson, A Badelek, B Ballintijn, M K Bardin, G Baum, G Berglund, P Betev, L Bird, I G Birsa, R Björkholm, P Bonner, B E De Botton, N R Bradamante, Franco Bressan, A Bültmann, S Burtin, E Cavata, C Crabb, D Cranshaw, J Çuhadar-Dönszelmann, T Dalla Torre, S Van Dantzig, R Deshpande, A A Dhawan, S K Dulya, C M Dyring, A Eichblatt, S Faivre, Jean-Claude Fasching, D Feinstein, F Fernández, C Frois, Bernard Garzón, J A Gaussiran, T Giorgi, M A von Goeler, E Gómez, A Gracia, G De Groot, N Grosse-Perdekamp, M Gülmez, E Von Harrach, D Hasegawa, T Hautle, P Hayashi, N Heusch, C A Horikawa, N Hughes, V W Igo, G Ishimoto, S Iwata, T Kabuss, E M Kageya, T Karev, A G Ketel, T Kessler, H J Kishi, A Kiselev, Yu F Klostermann, L Krämer, Dietrich Krivokhizhin, V G Kröger, W Kyynäräinen, J Lamanna, M Layda, T Landgraf, U Le Goff, J M Lehár, F de Lesquen, A Lichtenstadt, J Litmaath, M López-Ponte, S Loewe, M Magnon, A Mallot, G K Marie, F Martin, A Martino, J Matsuda, T Mayes, B W McCarthy, J S Medved, K S Van Middelkoop, G Miller, D Mori, K Moromisato, J H Nagaitsev, A P Nassalski, J P Naumann, Lutz Niinikoski, T O Oberski, J Ogawa, A Ozben, C Penzo, Aldo L Pérez, C Perrot-Kunne, F Peshekhonov, V D Piegaia, R Pinsky, L Platchkov, S K Pló, M Pose, D Postma, H Pretz, J Pussieux, T Pyrlik, J Reyhancan, I Rijllart, A Roberts, J B Rock, S E Rodríguez, M Rondio, Ewa Rosado, A Dabo, I Saborido, J Sandacz, A Savin, I A Schiavon, R P Schüler, K P Segel, R E Seitz, R Semertzidis, Y K Sergeev, S Sever, F Shanahan, P Sichtermann, E P Smirnov, G I Staude, A Steinmetz, A Stiegler, U Stuhrmann, H B Szleper, M Teichert, K M Tessarotto, F Velasco, M Vogt, J Voss, Rüdiger Weinstein, R Whitten, C Windmolders, R Willumeit, R Wislicki, W Witzmann, A Zanetti, A M Zhao, J |
| author_facet | Adeva, B Arik, E Arvidson, A Badelek, B Ballintijn, M K Bardin, G Baum, G Berglund, P Betev, L Bird, I G Birsa, R Björkholm, P Bonner, B E De Botton, N R Bradamante, Franco Bressan, A Bültmann, S Burtin, E Cavata, C Crabb, D Cranshaw, J Çuhadar-Dönszelmann, T Dalla Torre, S Van Dantzig, R Deshpande, A A Dhawan, S K Dulya, C M Dyring, A Eichblatt, S Faivre, Jean-Claude Fasching, D Feinstein, F Fernández, C Frois, Bernard Garzón, J A Gaussiran, T Giorgi, M A von Goeler, E Gómez, A Gracia, G De Groot, N Grosse-Perdekamp, M Gülmez, E Von Harrach, D Hasegawa, T Hautle, P Hayashi, N Heusch, C A Horikawa, N Hughes, V W Igo, G Ishimoto, S Iwata, T Kabuss, E M Kageya, T Karev, A G Ketel, T Kessler, H J Kishi, A Kiselev, Yu F Klostermann, L Krämer, Dietrich Krivokhizhin, V G Kröger, W Kyynäräinen, J Lamanna, M Layda, T Landgraf, U Le Goff, J M Lehár, F de Lesquen, A Lichtenstadt, J Litmaath, M López-Ponte, S Loewe, M Magnon, A Mallot, G K Marie, F Martin, A Martino, J Matsuda, T Mayes, B W McCarthy, J S Medved, K S Van Middelkoop, G Miller, D Mori, K Moromisato, J H Nagaitsev, A P Nassalski, J P Naumann, Lutz Niinikoski, T O Oberski, J Ogawa, A Ozben, C Penzo, Aldo L Pérez, C Perrot-Kunne, F Peshekhonov, V D Piegaia, R Pinsky, L Platchkov, S K Pló, M Pose, D Postma, H Pretz, J Pussieux, T Pyrlik, J Reyhancan, I Rijllart, A Roberts, J B Rock, S E Rodríguez, M Rondio, Ewa Rosado, A Dabo, I Saborido, J Sandacz, A Savin, I A Schiavon, R P Schüler, K P Segel, R E Seitz, R Semertzidis, Y K Sergeev, S Sever, F Shanahan, P Sichtermann, E P Smirnov, G I Staude, A Steinmetz, A Stiegler, U Stuhrmann, H B Szleper, M Teichert, K M Tessarotto, F Velasco, M Vogt, J Voss, Rüdiger Weinstein, R Whitten, C Windmolders, R Willumeit, R Wislicki, W Witzmann, A Zanetti, A M Zhao, J |
| author_sort | Adeva, B |
| collection | CERN |
| description | We present a measurement of semi-inclusive spin asymmetries for positively and negatively charged hadrons from deep inelastic scattering of polarised muons on polarised protons and deuterons in the range 0.003<x<0.7. From these asymmetries and the previously published inclusive spin asymmetries we determine, for the first time, the x-dependent spin distributions for {\it up} and {\it down} valence quarks and for {\it non-strange} sea quarks. We find that the first moments of the valence quark spin distributions are \Delta u_v = 1.01 \pm 0.19 \pm 0.14 and \Delta d_v = -0.57 \pm 0.22 \pm 0.11. The spin distribution function of {\it non-strange} sea quarks is consistent with zero over the measured range of x and the first moment is \Delta \bar u = \Delta \bar d = -0.02 \pm 0.09 \pm 0.03. |
| id | cern-294832 |
| institution | Organización Europea para la Investigación Nuclear |
| language | eng |
| publishDate | 1995 |
| record_format | invenio |
| spelling | cern-2948322019-09-30T06:29:59Zdoi:10.1016/0370-2693(95)01584-1http://cds.cern.ch/record/294832engAdeva, BArik, EArvidson, ABadelek, BBallintijn, M KBardin, GBaum, GBerglund, PBetev, LBird, I GBirsa, RBjörkholm, PBonner, B EDe Botton, N RBradamante, FrancoBressan, ABültmann, SBurtin, ECavata, CCrabb, DCranshaw, JÇuhadar-Dönszelmann, TDalla Torre, SVan Dantzig, RDeshpande, A ADhawan, S KDulya, C MDyring, AEichblatt, SFaivre, Jean-ClaudeFasching, DFeinstein, FFernández, CFrois, BernardGarzón, J AGaussiran, TGiorgi, M Avon Goeler, EGómez, AGracia, GDe Groot, NGrosse-Perdekamp, MGülmez, EVon Harrach, DHasegawa, THautle, PHayashi, NHeusch, C AHorikawa, NHughes, V WIgo, GIshimoto, SIwata, TKabuss, E MKageya, TKarev, A GKetel, TKessler, H JKishi, AKiselev, Yu FKlostermann, LKrämer, DietrichKrivokhizhin, V GKröger, WKyynäräinen, JLamanna, MLayda, TLandgraf, ULe Goff, J MLehár, Fde Lesquen, ALichtenstadt, JLitmaath, MLópez-Ponte, SLoewe, MMagnon, AMallot, G KMarie, FMartin, AMartino, JMatsuda, TMayes, B WMcCarthy, J SMedved, K SVan Middelkoop, GMiller, DMori, KMoromisato, J HNagaitsev, A PNassalski, J PNaumann, LutzNiinikoski, T OOberski, JOgawa, AOzben, CPenzo, Aldo LPérez, CPerrot-Kunne, FPeshekhonov, V DPiegaia, RPinsky, LPlatchkov, S KPló, MPose, DPostma, HPretz, JPussieux, TPyrlik, JReyhancan, IRijllart, ARoberts, J BRock, S ERodríguez, MRondio, EwaRosado, ADabo, ISaborido, JSandacz, ASavin, I ASchiavon, R PSchüler, K PSegel, R ESeitz, RSemertzidis, Y KSergeev, SSever, FShanahan, PSichtermann, E PSmirnov, G IStaude, ASteinmetz, AStiegler, UStuhrmann, H BSzleper, MTeichert, K MTessarotto, FVelasco, MVogt, JVoss, RüdigerWeinstein, RWhitten, CWindmolders, RWillumeit, RWislicki, WWitzmann, AZanetti, A MZhao, JPolarisation of valence and non-strange sea quarks in the nucleon from semi-inclusive spin asymmetriesParticle Physics - ExperimentWe present a measurement of semi-inclusive spin asymmetries for positively and negatively charged hadrons from deep inelastic scattering of polarised muons on polarised protons and deuterons in the range 0.003<x<0.7. From these asymmetries and the previously published inclusive spin asymmetries we determine, for the first time, the x-dependent spin distributions for {\it up} and {\it down} valence quarks and for {\it non-strange} sea quarks. We find that the first moments of the valence quark spin distributions are \Delta u_v = 1.01 \pm 0.19 \pm 0.14 and \Delta d_v = -0.57 \pm 0.22 \pm 0.11. The spin distribution function of {\it non-strange} sea quarks is consistent with zero over the measured range of x and the first moment is \Delta \bar u = \Delta \bar d = -0.02 \pm 0.09 \pm 0.03.CERN-PPE-95-187oai:cds.cern.ch:2948321995-12-15 |
| spellingShingle | Particle Physics - Experiment Adeva, B Arik, E Arvidson, A Badelek, B Ballintijn, M K Bardin, G Baum, G Berglund, P Betev, L Bird, I G Birsa, R Björkholm, P Bonner, B E De Botton, N R Bradamante, Franco Bressan, A Bültmann, S Burtin, E Cavata, C Crabb, D Cranshaw, J Çuhadar-Dönszelmann, T Dalla Torre, S Van Dantzig, R Deshpande, A A Dhawan, S K Dulya, C M Dyring, A Eichblatt, S Faivre, Jean-Claude Fasching, D Feinstein, F Fernández, C Frois, Bernard Garzón, J A Gaussiran, T Giorgi, M A von Goeler, E Gómez, A Gracia, G De Groot, N Grosse-Perdekamp, M Gülmez, E Von Harrach, D Hasegawa, T Hautle, P Hayashi, N Heusch, C A Horikawa, N Hughes, V W Igo, G Ishimoto, S Iwata, T Kabuss, E M Kageya, T Karev, A G Ketel, T Kessler, H J Kishi, A Kiselev, Yu F Klostermann, L Krämer, Dietrich Krivokhizhin, V G Kröger, W Kyynäräinen, J Lamanna, M Layda, T Landgraf, U Le Goff, J M Lehár, F de Lesquen, A Lichtenstadt, J Litmaath, M López-Ponte, S Loewe, M Magnon, A Mallot, G K Marie, F Martin, A Martino, J Matsuda, T Mayes, B W McCarthy, J S Medved, K S Van Middelkoop, G Miller, D Mori, K Moromisato, J H Nagaitsev, A P Nassalski, J P Naumann, Lutz Niinikoski, T O Oberski, J Ogawa, A Ozben, C Penzo, Aldo L Pérez, C Perrot-Kunne, F Peshekhonov, V D Piegaia, R Pinsky, L Platchkov, S K Pló, M Pose, D Postma, H Pretz, J Pussieux, T Pyrlik, J Reyhancan, I Rijllart, A Roberts, J B Rock, S E Rodríguez, M Rondio, Ewa Rosado, A Dabo, I Saborido, J Sandacz, A Savin, I A Schiavon, R P Schüler, K P Segel, R E Seitz, R Semertzidis, Y K Sergeev, S Sever, F Shanahan, P Sichtermann, E P Smirnov, G I Staude, A Steinmetz, A Stiegler, U Stuhrmann, H B Szleper, M Teichert, K M Tessarotto, F Velasco, M Vogt, J Voss, Rüdiger Weinstein, R Whitten, C Windmolders, R Willumeit, R Wislicki, W Witzmann, A Zanetti, A M Zhao, J Polarisation of valence and non-strange sea quarks in the nucleon from semi-inclusive spin asymmetries |
| title | Polarisation of valence and non-strange sea quarks in the nucleon from semi-inclusive spin asymmetries |
| title_full | Polarisation of valence and non-strange sea quarks in the nucleon from semi-inclusive spin asymmetries |
| title_fullStr | Polarisation of valence and non-strange sea quarks in the nucleon from semi-inclusive spin asymmetries |
| title_full_unstemmed | Polarisation of valence and non-strange sea quarks in the nucleon from semi-inclusive spin asymmetries |
| title_short | Polarisation of valence and non-strange sea quarks in the nucleon from semi-inclusive spin asymmetries |
| title_sort | polarisation of valence and non-strange sea quarks in the nucleon from semi-inclusive spin asymmetries |
| topic | Particle Physics - Experiment |
| url | https://dx.doi.org/10.1016/0370-2693(95)01584-1 http://cds.cern.ch/record/294832 |
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severf polarisationofvalenceandnonstrangeseaquarksinthenucleonfromsemiinclusivespinasymmetries AT shanahanp polarisationofvalenceandnonstrangeseaquarksinthenucleonfromsemiinclusivespinasymmetries AT sichtermannep polarisationofvalenceandnonstrangeseaquarksinthenucleonfromsemiinclusivespinasymmetries AT smirnovgi polarisationofvalenceandnonstrangeseaquarksinthenucleonfromsemiinclusivespinasymmetries AT staudea polarisationofvalenceandnonstrangeseaquarksinthenucleonfromsemiinclusivespinasymmetries AT steinmetza polarisationofvalenceandnonstrangeseaquarksinthenucleonfromsemiinclusivespinasymmetries AT stiegleru polarisationofvalenceandnonstrangeseaquarksinthenucleonfromsemiinclusivespinasymmetries AT stuhrmannhb polarisationofvalenceandnonstrangeseaquarksinthenucleonfromsemiinclusivespinasymmetries AT szleperm polarisationofvalenceandnonstrangeseaquarksinthenucleonfromsemiinclusivespinasymmetries AT teichertkm polarisationofvalenceandnonstrangeseaquarksinthenucleonfromsemiinclusivespinasymmetries AT tessarottof polarisationofvalenceandnonstrangeseaquarksinthenucleonfromsemiinclusivespinasymmetries AT velascom polarisationofvalenceandnonstrangeseaquarksinthenucleonfromsemiinclusivespinasymmetries AT vogtj polarisationofvalenceandnonstrangeseaquarksinthenucleonfromsemiinclusivespinasymmetries AT vossrudiger polarisationofvalenceandnonstrangeseaquarksinthenucleonfromsemiinclusivespinasymmetries AT weinsteinr polarisationofvalenceandnonstrangeseaquarksinthenucleonfromsemiinclusivespinasymmetries AT whittenc polarisationofvalenceandnonstrangeseaquarksinthenucleonfromsemiinclusivespinasymmetries AT windmoldersr polarisationofvalenceandnonstrangeseaquarksinthenucleonfromsemiinclusivespinasymmetries AT willumeitr polarisationofvalenceandnonstrangeseaquarksinthenucleonfromsemiinclusivespinasymmetries AT wislickiw polarisationofvalenceandnonstrangeseaquarksinthenucleonfromsemiinclusivespinasymmetries AT witzmanna polarisationofvalenceandnonstrangeseaquarksinthenucleonfromsemiinclusivespinasymmetries AT zanettiam polarisationofvalenceandnonstrangeseaquarksinthenucleonfromsemiinclusivespinasymmetries AT zhaoj polarisationofvalenceandnonstrangeseaquarksinthenucleonfromsemiinclusivespinasymmetries |