Improved measurement of double helicity asymmetry in inclulsive midrapidity pi(0) production for polarized p+p collisions at root s=200 GeV
(2006) In Physical Review D (Particles, Fields, Gravitation and Cosmology) 73(9).- Abstract
- We present an improved measurement of the double helicity asymmetry for pi(0) production in polarized proton-proton scattering at root s=200 GeV employing the PHENIX detector at the Relativistic Heavy Ion Collider (RHIC). The improvements to our previous measurement come from two main factors: Inclusion of a new data set from the 2004 RHIC run with higher beam polarizations than the earlier run and a recalibration of the beam polarization measurements for the earlier run, which resulted in reduced uncertainties and increased beam polarizations. The results are compared to a Next to Leading Order (NLO) perturbative Quantum Chromodynamics (pQCD) calculation with a range of polarized gluon distributions.
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/407871
- author
- organization
- publishing date
- 2006
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Physical Review D (Particles, Fields, Gravitation and Cosmology)
- volume
- 73
- issue
- 9
- article number
- 091102
- publisher
- American Physical Society
- external identifiers
-
- wos:000237950900002
- scopus:33646881501
- ISSN
- 1550-2368
- DOI
- 10.1103/PhysRevD.73.091102
- language
- English
- LU publication?
- yes
- id
- 8414a013-0814-4f09-b8ed-9a5f1d643799 (old id 407871)
- date added to LUP
- 2016-04-01 12:10:49
- date last changed
- 2023-01-03 05:01:22
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The results are compared to a Next to Leading Order (NLO) perturbative Quantum Chromodynamics (pQCD) calculation with a range of polarized gluon distributions.}}, author = {{Adler, SS and Afanasiev, S and Aidala, C and Ajitanand, NN and Akiba, Y and Al-Jamel, A and Alexander, J and Aoki, K and Aphecetche, L and Armendariz, R and Aronson, SH and Averbeck, R and Awes, TC and Azmoun, B and Babintsev, V and Baldisseri, A and Barish, KN and Barnes, PD and Bassalleck, B and Bathe, S and Batsouli, S and Baublis, V and Bauer, F and Bazilevsky, A and Belikov, S and Bennett, R and Berdnikov, Y and Bjorndal, MT and Boissevain, JG and Borel, H and Boyle, K and Brooks, ML and Brown, DS and Bruner, N and Bucher, D and Buesching, H and Bumazhnov, V and Bunce, G and Burward-Hoy, JM and Butsyk, S and Camard, X and Campbell, S and Chai, JS and Chand, P and Chang, WC and Chernichenko, S and Chi, CY and Chiba, J and Chiu, M and Choi, IJ and Choudhury, RK and Chujo, T and Cianciolo, V and Cleven, CR and 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language = {{eng}}, number = {{9}}, publisher = {{American Physical Society}}, series = {{Physical Review D (Particles, Fields, Gravitation and Cosmology)}}, title = {{Improved measurement of double helicity asymmetry in inclulsive midrapidity pi(0) production for polarized p+p collisions at root s=200 GeV}}, url = {{http://dx.doi.org/10.1103/PhysRevD.73.091102}}, doi = {{10.1103/PhysRevD.73.091102}}, volume = {{73}}, year = {{2006}}, }