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Measurement of pari...
Measurement of parity-violating spin asymmetries in W ± production at midrapidity in longitudinally polarized p +p collisions
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- Adare, A. (author)
- University of Colorado
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- Aidala, C. (author)
- University of Michigan,Los Alamos National Laboratory
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- Ajitanand, N. N. (author)
- Stony Brook University
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- Akiba, Y. (author)
- Riken BNL Research Center,RIKEN SPring-8 center
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- Akimoto, R. (author)
- University of Tokyo
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- Alexander, J. (author)
- Stony Brook University
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- Alfred, M. (author)
- Howard University
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- Aoki, K. (author)
- High Energy Accelerator Research Organization, Tsukuba,RIKEN SPring-8 center
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- Apadula, N. (author)
- Iowa State University,Stony Brook University
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- Aramaki, Y. (author)
- University of Tokyo,RIKEN SPring-8 center
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- Asano, H. (author)
- RIKEN SPring-8 center,Kyoto University
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- Aschenauer, E. C. (author)
- Brookhaven National Laboratory
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- Atomssa, E. T. (author)
- Stony Brook University
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- Awes, T. C. (author)
- Oak Ridge National Laboratory
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- Azmoun, B. (author)
- Brookhaven National Laboratory
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- Babintsev, V. (author)
- Institute for High Energy Physics, Russia
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- Bai, M. (author)
- Brookhaven National Laboratory
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- Bandara, N. S. (author)
- University of Massachusetts
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- Bannier, B. (author)
- Stony Brook University
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- Barish, K. N. (author)
- University of California, Riverside
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- Bassalleck, B. (author)
- University of New Mexico
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- Bathe, S. (author)
- Baruch College,Riken BNL Research Center
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- Baublis, V. (author)
- Petersburg Nuclear Physics Institute (PNPI)
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- Baumann, C. (author)
- Brookhaven National Laboratory
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- Baumgart, S. (author)
- RIKEN SPring-8 center
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- Bazilevsky, A. (author)
- Brookhaven National Laboratory
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- Beaumier, M. (author)
- University of California, Riverside
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- Belmont, R. (author)
- Vanderbilt University,University of Michigan,University of Colorado
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- Berdnikov, A. (author)
- St. Petersburg State Polytechnical University
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- Berdnikov, Y. (author)
- St. Petersburg State Polytechnical University
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- Black, D. (author)
- University of California, Riverside
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- Blau, D. S. (author)
- Russian Research Center 'Kurchatov Institute'
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- Bok, J. S. (author)
- University of New Mexico,New Mexico State University
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- Boyle, K. (author)
- Riken BNL Research Center
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- Brooks, M. L. (author)
- Los Alamos National Laboratory
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- Bryslawskyj, J. (author)
- Baruch College
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- Buesching, H. (author)
- Brookhaven National Laboratory
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- Bumazhnov, V. (author)
- Institute for High Energy Physics, Russia
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- Butsyk, S. (author)
- University of New Mexico
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- Campbell, S. (author)
- Iowa State University,Columbia University
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- Chi, C. Y. (author)
- Columbia University
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- Chiu, M. (author)
- Brookhaven National Laboratory
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- Choi, I. J. (author)
- University of Illinois at Urbana-Champaign
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- Choi, S. (author)
- Seoul National University
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- Choudhury, R. K. (author)
- Bhabha Atomic Research Centre
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- Christiansen, P. (author)
- Lund University,Lunds universitet,Partikel- och kärnfysik,Fysiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Particle and nuclear physics,Department of Physics,Departments at LTH,Faculty of Engineering, LTH
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Chujo, T. (author)
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- Oskarsson, A. (author)
- Lund University,Lunds universitet,Partikel- och kärnfysik,Fysiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Particle and nuclear physics,Department of Physics,Departments at LTH,Faculty of Engineering, LTH
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- Silvermyr, D. (author)
- Lund University,Lunds universitet,Partikel- och kärnfysik,Fysiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Particle and nuclear physics,Department of Physics,Departments at LTH,Faculty of Engineering, LTH,Oak Ridge National Laboratory
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- Stenlund, E. (author)
- Lund University,Lunds universitet,Partikel- och kärnfysik,Fysiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Particle and nuclear physics,Department of Physics,Departments at LTH,Faculty of Engineering, LTH
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(creator_code:org_t)
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- 2016
- 2016
- English.
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In: Physical Review D. - 2470-0010. ; 93:5
- Related links:
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http://dx.doi.org/10...
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https://lup.lub.lu.s...
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https://doi.org/10.1...
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Abstract
Subject headings
Close
- We present midrapidity measurements from the PHENIX experiment of large parity-violating single-spin asymmetries of high transverse momentum electrons and positrons from W±/Z decays, produced in longitudinally polarized p+p collisions at center of mass energies of s=500 and 510 GeV. These asymmetries allow direct access to the antiquark polarized parton distribution functions due to the parity-violating nature of the W-boson coupling to quarks and antiquarks. The results presented are based on data collected in 2011, 2012, and 2013 with an integrated luminosity of 240 pb-1, which exceeds previous PHENIX published results by a factor of more than 27. These high Q2 data probe the parton structure of the proton at W mass scale and provide an important addition to our understanding of the antiquark parton helicity distribution functions at an intermediate Bjorken x value of roughly MW/s=0.16.
Subject headings
- NATURVETENSKAP -- Fysik -- Subatomär fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Subatomic Physics (hsv//eng)
Publication and Content Type
- art (subject category)
- ref (subject category)
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To the university's database
- By the author/editor
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Adare, A.
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Aidala, C.
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Ajitanand, N. N.
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Akiba, Y.
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Akimoto, R.
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Alexander, J.
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show more...
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Alfred, M.
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Aoki, K.
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Apadula, N.
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Aramaki, Y.
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Asano, H.
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Aschenauer, E. C ...
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Atomssa, E. T.
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Awes, T. C.
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Azmoun, B.
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Babintsev, V.
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Bai, M.
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Bandara, N. S.
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Bannier, B.
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Barish, K. N.
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Bassalleck, B.
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Bathe, S.
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Baublis, V.
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Baumann, C.
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Baumgart, S.
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Bazilevsky, A.
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Beaumier, M.
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Belmont, R.
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Berdnikov, A.
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Berdnikov, Y.
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Black, D.
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Blau, D. S.
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Bok, J. S.
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Boyle, K.
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Brooks, M. L.
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Bryslawskyj, J.
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Buesching, H.
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Bumazhnov, V.
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Butsyk, S.
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Campbell, S.
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Chi, C. Y.
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Chiu, M.
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Choi, I. J.
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Choi, S.
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Choudhury, R. K.
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Christiansen, P.
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Chujo, T.
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Oskarsson, A.
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Silvermyr, D.
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Stenlund, E.
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- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
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and Subatomic Physic ...
- Articles in the publication
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Physical Review ...
- By the university
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Lund University