Angular decay coefficients of J /ψ mesons at forward rapidity from p+p collisions at s =510 GeV

A Adare; C. Aidala; N. N. Ajitanand; Y. Akiba; R. Akimoto; M. Alfred; V. Andrieux; K. Aoki; N Apadula; Y Aramaki; H. Asano; E. T. Atomssa; T. C. Awes; Carmen Ayuso; B. Azmoun; V. Babintsev; M Bai; N. S. Bandara; B Bannier; K N Barish; S Bathe; A Bazilevsky; M. Beaumier; S. Beckman; R Belmont; A Berdnikov; Y. Berdnikov; D Black; D. S. Blau; M. Boer; J S Bok; E. K. Bownes; K Boyle; M L Brooks; J. Bryslawskyj; H Buesching; V. Bumazhnov; Christopher C. Butler; S. Campbell; V. Canoa Roman; R. Cervantes; C. H. Chen; C Y Chi; M Chiu; I J Choi; J B Choi; T. Chujo; Z. Citron; A. Oskarsson; D. Silvermyr; PHENIX Collaboration

doi:10.1103/PhysRevD.95.092003

Angular decay coefficients of J /ψ mesons at forward rapidity from p+p collisions at s =510 GeV

A Adare, C. Aidala, N. N. Ajitanand, Y. Akiba, R. Akimoto, M. Alfred, V. Andrieux, K. Aoki, N Apadula, Y Aramaki, H. Asano, E. T. Atomssa, T. C. Awes, Carmen Ayuso, B. Azmoun, V. Babintsev, M Bai, N. S. Bandara, B Bannier, K N BarishS Bathe, A Bazilevsky, M. Beaumier, S. Beckman, R Belmont, A Berdnikov, Y. Berdnikov, D Black, D. S. Blau, M. Boer, J S Bok, E. K. Bownes, K Boyle, M L Brooks, J. Bryslawskyj, H Buesching, V. Bumazhnov, Christopher C. Butler, S. Campbell, V. Canoa Roman, R. Cervantes, C. H. Chen, C Y Chi, M Chiu, I J Choi, J B Choi, T. Chujo, Z. Citron, A. Oskarsson, D. Silvermyr, PHENIX Collaboration

Particle and nuclear physics

Research output: Contribution to journal › Article › peer-review

Abstract

We report the first measurement of the full angular distribution for inclusive J/ψ→μ+μ- decays in p+p collisions at s=510 GeV. The measurements are made for J/ψ transverse momentum 2<pT<10 GeV/c and rapidity 1.2<y<2.2 in the Helicity, Collins-Soper, and Gottfried-Jackson reference frames. In all frames the polar coefficient λθ is strongly negative at low pT and becomes close to zero at high pT, while the azimuthal coefficient λφ is close to zero at low pT, and becomes slightly negative at higher pT. The frame-independent coefficient λ is strongly negative at all pT in all frames. The data are compared to the theoretical predictions provided by nonrelativistic quantum chromodynamics models.

Original language	English
Article number	092003
Journal	Physical Review D - Particles, Fields, Gravitation and Cosmology
Volume	95
Issue number	9
DOIs	https://doi.org/10.1103/PhysRevD.95.092003
Publication status	Published - 2017 May 1

Subject classification (UKÄ)

Subatomic Physics

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10.1103/PhysRevD.95.092003

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Adare, A., Aidala, C., Ajitanand, N. N., Akiba, Y., Akimoto, R., Alfred, M., Andrieux, V., Aoki, K., Apadula, N., Aramaki, Y., Asano, H., Atomssa, E. T., Awes, T. C., Ayuso, C., Azmoun, B., Babintsev, V., Bai, M., Bandara, N. S., Bannier, B., ... PHENIX Collaboration (2017). Angular decay coefficients of J /ψ mesons at forward rapidity from p+p collisions at s =510 GeV. Physical Review D - Particles, Fields, Gravitation and Cosmology, 95(9), Article 092003. https://doi.org/10.1103/PhysRevD.95.092003

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title = "Angular decay coefficients of J /ψ mesons at forward rapidity from p+p collisions at s =510 GeV",

abstract = "We report the first measurement of the full angular distribution for inclusive J/ψ→μ+μ- decays in p+p collisions at s=510 GeV. The measurements are made for J/ψ transverse momentum 2",

author = "A Adare and C. Aidala and Ajitanand, {N. N.} and Y. Akiba and R. Akimoto and M. Alfred and V. Andrieux and K. Aoki and N Apadula and Y Aramaki and H. Asano and Atomssa, {E. T.} and Awes, {T. C.} and Carmen Ayuso and B. Azmoun and V. Babintsev and M Bai and Bandara, {N. S.} and B Bannier and Barish, {K N} and S Bathe and A Bazilevsky and M. Beaumier and S. Beckman and R Belmont and A Berdnikov and Y. Berdnikov and D Black and Blau, {D. S.} and M. Boer and Bok, {J S} and Bownes, {E. K.} and K Boyle and Brooks, {M L} and J. Bryslawskyj and H Buesching and V. Bumazhnov and Butler, {Christopher C.} and S. Campbell and {Canoa Roman}, V. and R. Cervantes and Chen, {C. H.} and Chi, {C Y} and M Chiu and Choi, {I J} and Choi, {J B} and T. Chujo and Z. Citron and A. Oskarsson and D. Silvermyr and {PHENIX Collaboration}",

year = "2017",

month = may,

day = "1",

doi = "10.1103/PhysRevD.95.092003",

language = "English",

volume = "95",

journal = "Physical Review D - Particles, Fields, Gravitation and Cosmology",

issn = "2470-0010",

publisher = "American Physical Society",

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Adare, A, Aidala, C, Ajitanand, NN, Akiba, Y, Akimoto, R, Alfred, M, Andrieux, V, Aoki, K, Apadula, N, Aramaki, Y, Asano, H, Atomssa, ET, Awes, TC, Ayuso, C, Azmoun, B, Babintsev, V, Bai, M, Bandara, NS, Bannier, B, Barish, KN, Bathe, S, Bazilevsky, A, Beaumier, M, Beckman, S, Belmont, R, Berdnikov, A, Berdnikov, Y, Black, D, Blau, DS, Boer, M, Bok, JS, Bownes, EK, Boyle, K, Brooks, ML, Bryslawskyj, J, Buesching, H, Bumazhnov, V, Butler, CC, Campbell, S, Canoa Roman, V, Cervantes, R, Chen, CH, Chi, CY, Chiu, M, Choi, IJ, Choi, JB, Chujo, T, Citron, Z, Oskarsson, A , Silvermyr, D & PHENIX Collaboration 2017, 'Angular decay coefficients of J /ψ mesons at forward rapidity from p+p collisions at s =510 GeV', Physical Review D - Particles, Fields, Gravitation and Cosmology, vol. 95, no. 9, 092003. https://doi.org/10.1103/PhysRevD.95.092003

TY - JOUR

T1 - Angular decay coefficients of J /ψ mesons at forward rapidity from p+p collisions at s =510 GeV

AU - Adare, A

AU - Aidala, C.

AU - Ajitanand, N. N.

AU - Akiba, Y.

AU - Akimoto, R.

AU - Alfred, M.

AU - Andrieux, V.

AU - Aoki, K.

AU - Apadula, N

AU - Aramaki, Y

AU - Asano, H.

AU - Atomssa, E. T.

AU - Awes, T. C.

AU - Ayuso, Carmen

AU - Azmoun, B.

AU - Babintsev, V.

AU - Bai, M

AU - Bandara, N. S.

AU - Bannier, B

AU - Barish, K N

AU - Bathe, S

AU - Bazilevsky, A

AU - Beaumier, M.

AU - Beckman, S.

AU - Belmont, R

AU - Berdnikov, A

AU - Berdnikov, Y.

AU - Black, D

AU - Blau, D. S.

AU - Boer, M.

AU - Bok, J S

AU - Bownes, E. K.

AU - Boyle, K

AU - Brooks, M L

AU - Bryslawskyj, J.

AU - Buesching, H

AU - Bumazhnov, V.

AU - Butler, Christopher C.

AU - Campbell, S.

AU - Canoa Roman, V.

AU - Cervantes, R.

AU - Chen, C. H.

AU - Chi, C Y

AU - Chiu, M

AU - Choi, I J

AU - Choi, J B

AU - Chujo, T.

AU - Citron, Z.

AU - Oskarsson, A.

AU - Silvermyr, D.

AU - PHENIX Collaboration

PY - 2017/5/1

Y1 - 2017/5/1

N2 - We report the first measurement of the full angular distribution for inclusive J/ψ→μ+μ- decays in p+p collisions at s=510 GeV. The measurements are made for J/ψ transverse momentum 2

AB - We report the first measurement of the full angular distribution for inclusive J/ψ→μ+μ- decays in p+p collisions at s=510 GeV. The measurements are made for J/ψ transverse momentum 2

UR - http://www.scopus.com/inward/record.url?scp=85020079986&partnerID=8YFLogxK

U2 - 10.1103/PhysRevD.95.092003

DO - 10.1103/PhysRevD.95.092003

M3 - Article

SN - 2470-0010

VL - 95

JO - Physical Review D - Particles, Fields, Gravitation and Cosmology

JF - Physical Review D - Particles, Fields, Gravitation and Cosmology

IS - 9

M1 - 092003

ER -

Angular decay coefficients of J /ψ mesons at forward rapidity from p+p collisions at s =510 GeV

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