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Double-spin asymmetry of electrons from heavy-flavor decays in p+p collisions at √s=200 GeV

Publication ,  Journal Article
Adare, A; Afanasiev, S; Aidala, C; Ajitanand, NN; Akiba, Y; Akimoto, R; Al-Ta'Ani, H; Alexander, J; Andrews, KR; Angerami, A; Aoki, K; Bai, M ...
Published in: Physical Review D - Particles, Fields, Gravitation and Cosmology
January 29, 2013

We report on the first measurement of the double-spin asymmetry, A LL, of electrons from the decays of hadrons containing heavy flavor in longitudinally polarized p+p collisions at √s=200 GeV for p T=0.5 to 3.0 GeV/c. The asymmetry was measured at midrapidity (|η|<0.35) with the PHENIX detector at the Relativistic Heavy Ion Collider. The measured asymmetries are consistent with zero within the statistical errors. We obtained a constraint for the polarized gluon distribution in the proton of(1σ) based on a leading-order perturbative quantum chromodynamics model, using the measured asymmetry. © 2013 American Physical Society.

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Published In

Physical Review D - Particles, Fields, Gravitation and Cosmology

DOI

EISSN

1550-2368

ISSN

1550-7998

Publication Date

January 29, 2013

Volume

87

Issue

1

Related Subject Headings

  • Nuclear & Particles Physics
  • 5107 Particle and high energy physics
  • 5101 Astronomical sciences
  • 4902 Mathematical physics
  • 0206 Quantum Physics
  • 0202 Atomic, Molecular, Nuclear, Particle and Plasma Physics
  • 0201 Astronomical and Space Sciences
 

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Adare, A., Afanasiev, S., Aidala, C., Ajitanand, N. N., Akiba, Y., Akimoto, R., … Grau, N. (2013). Double-spin asymmetry of electrons from heavy-flavor decays in p+p collisions at √s=200 GeV. Physical Review D - Particles, Fields, Gravitation and Cosmology, 87(1). https://doi.org/10.1103/PhysRevD.87.012011
Adare, A., S. Afanasiev, C. Aidala, N. N. Ajitanand, Y. Akiba, R. Akimoto, H. Al-Ta’Ani, et al. “Double-spin asymmetry of electrons from heavy-flavor decays in p+p collisions at √s=200 GeV.” Physical Review D - Particles, Fields, Gravitation and Cosmology 87, no. 1 (January 29, 2013). https://doi.org/10.1103/PhysRevD.87.012011.
Adare A, Afanasiev S, Aidala C, Ajitanand NN, Akiba Y, Akimoto R, et al. Double-spin asymmetry of electrons from heavy-flavor decays in p+p collisions at √s=200 GeV. Physical Review D - Particles, Fields, Gravitation and Cosmology. 2013 Jan 29;87(1).
Adare, A., et al. “Double-spin asymmetry of electrons from heavy-flavor decays in p+p collisions at √s=200 GeV.” Physical Review D - Particles, Fields, Gravitation and Cosmology, vol. 87, no. 1, Jan. 2013. Scopus, doi:10.1103/PhysRevD.87.012011.
Adare A, Afanasiev S, Aidala C, Ajitanand NN, Akiba Y, Akimoto R, Al-Ta’Ani H, Alexander J, Andrews KR, Angerami A, Aoki K, Apadula N, Appelt E, Aramaki Y, Armendariz R, Aschenauer EC, Awes TC, Azmoun B, Babintsev V, Bai M, Bannier B, Barish KN, Bassalleck B, Basye AT, Bathe S, Baublis V, Baumann C, Bazilevsky A, Belmont R, Ben-Benjamin J, Bennett R, Berdnikov A, Berdnikov Y, Blau DS, Bok JS, Boyle K, Brooks ML, Broxmeyer D, Buesching H, Bumazhnov V, Bunce G, Butsyk S, Campbell S, Castera P, Chen CH, Chi CY, Chiu M, Choi IJ, Choi JB, Choudhury RK, Christiansen P, Chujo T, Chvala O, Cianciolo V, Citron Z, Cole BA, Conesa Del Valle Z, Connors M, Csanád M, Csörgo T, Dairaku S, Datta A, David G, Dayananda MK, Denisov A, Deshpande A, Desmond EJ, Dharmawardane KV, Dietzsch O, Dion A, Donadelli M, Drapier O, Drees A, Drees KA, Durham JM, Durum A, D’Orazio L, Efremenko YV, Engelmore T, Enokizono A, En’Yo H, Esumi S, Fadem B, Fields DE, Finger M, Fleuret F, Fokin SL, Frantz JE, Franz A, Frawley AD, Fukao Y, Fusayasu T, Garishvili I, Glenn A, Gong X, Gonin M, Goto Y, Granier De Cassagnac R, Grau N. Double-spin asymmetry of electrons from heavy-flavor decays in p+p collisions at √s=200 GeV. Physical Review D - Particles, Fields, Gravitation and Cosmology. 2013 Jan 29;87(1).

Published In

Physical Review D - Particles, Fields, Gravitation and Cosmology

DOI

EISSN

1550-2368

ISSN

1550-7998

Publication Date

January 29, 2013

Volume

87

Issue

1

Related Subject Headings

  • Nuclear & Particles Physics
  • 5107 Particle and high energy physics
  • 5101 Astronomical sciences
  • 4902 Mathematical physics
  • 0206 Quantum Physics
  • 0202 Atomic, Molecular, Nuclear, Particle and Plasma Physics
  • 0201 Astronomical and Space Sciences