Multidimensional, High Precision Measurements of Beam Single Spin Asymmetries in Semi-inclusive π+ Electroproduction off Protons in the Valence Region

(CLAS Collaboration)

doi:10.1103/PhysRevLett.128.062005

Multidimensional, High Precision Measurements of Beam Single Spin Asymmetries in Semi-inclusive π+ Electroproduction off Protons in the Valence Region

(CLAS Collaboration)

Division of Science (Berks)

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

10 Scopus citations

Abstract

High precision measurements of the polarized electron beam-spin asymmetry in semi-inclusive deep inelastic scattering (SIDIS) from the proton have been performed using a 10.6 GeV incident electron beam and the CLAS12 spectrometer at Jefferson Lab. We report here a high precision multidimensional study of single π+ SIDIS data over a large kinematic range in Bjorken x, fractional energy, and transverse momentum of the hadron as well as photon virtualities Q2 ranging from 1-7 GeV2. In particular, the structure function ratio FLUsinφ/FUU has been determined, where FLUsinφ is a twist-3 quantity that can reveal novel aspects of emergent hadron mass and quark-gluon correlations within the nucleon. The data's impact on the evolving understanding of the underlying reaction mechanisms and their kinematic variation is explored using theoretical models for the different contributing transverse momentum dependent parton distribution functions.

Original language	English (US)
Article number	062005
Journal	Physical review letters
Volume	128
Issue number	6
DOIs	https://doi.org/10.1103/PhysRevLett.128.062005
State	Published - Feb 11 2022

All Science Journal Classification (ASJC) codes

General Physics and Astronomy

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10.1103/PhysRevLett.128.062005

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@article{d4f6ab9a50a145afa14d134e5f06bae9,

title = "Multidimensional, High Precision Measurements of Beam Single Spin Asymmetries in Semi-inclusive π+ Electroproduction off Protons in the Valence Region",

abstract = "High precision measurements of the polarized electron beam-spin asymmetry in semi-inclusive deep inelastic scattering (SIDIS) from the proton have been performed using a 10.6 GeV incident electron beam and the CLAS12 spectrometer at Jefferson Lab. We report here a high precision multidimensional study of single π+ SIDIS data over a large kinematic range in Bjorken x, fractional energy, and transverse momentum of the hadron as well as photon virtualities Q2 ranging from 1-7 GeV2. In particular, the structure function ratio FLUsinφ/FUU has been determined, where FLUsinφ is a twist-3 quantity that can reveal novel aspects of emergent hadron mass and quark-gluon correlations within the nucleon. The data's impact on the evolving understanding of the underlying reaction mechanisms and their kinematic variation is explored using theoretical models for the different contributing transverse momentum dependent parton distribution functions.",

author = "{(CLAS Collaboration)} and S. Diehl and A. Kim and G. Angelini and K. Joo and S. Adhikari and M. Amaryan and M. Arratia and H. Atac and H. Avakian and {Ayerbe Gayoso}, C. and Baltzell, {N. A.} and L. Barion and S. Bastami and M. Battaglieri and I. Bedlinskiy and F. Benmokhtar and A. Bianconi and Biselli, {A. S.} and M. Bondi and F. Boss{\`u} and S. Boiarinov and Brinkmann, {K. T.} and Briscoe, {W. J.} and W. Brooks and D. Bulumulla and Burkert, {V. D.} and Carman, {D. S.} and Carvajal, {J. C.} and A. Celentano and P. Chatagnon and T. Chetry and G. Ciullo and L. Clark and Clary, {B. A.} and Cole, {P. L.} and M. Contalbrigo and G. Costantini and V. Crede and A. D'angelo and N. Dashyan and {De Vita}, R. and M. Defurne and A. Deur and C. Dilks and C. Djalali and M. Dugger and R. Dupre and H. Egiyan and M. Ehrhart and A. Prokudin",

note = "Publisher Copyright: {\textcopyright} 2022 authors. Published by the American Physical Society.",

year = "2022",

month = feb,

day = "11",

doi = "10.1103/PhysRevLett.128.062005",

language = "English (US)",

volume = "128",

journal = "Physical review letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "6",

}

TY - JOUR

T1 - Multidimensional, High Precision Measurements of Beam Single Spin Asymmetries in Semi-inclusive π+ Electroproduction off Protons in the Valence Region

AU - (CLAS Collaboration)

AU - Diehl, S.

AU - Kim, A.

AU - Angelini, G.

AU - Joo, K.

AU - Adhikari, S.

AU - Amaryan, M.

AU - Arratia, M.

AU - Atac, H.

AU - Avakian, H.

AU - Ayerbe Gayoso, C.

AU - Baltzell, N. A.

AU - Barion, L.

AU - Bastami, S.

AU - Battaglieri, M.

AU - Bedlinskiy, I.

AU - Benmokhtar, F.

AU - Bianconi, A.

AU - Biselli, A. S.

AU - Bondi, M.

AU - Bossù, F.

AU - Boiarinov, S.

AU - Brinkmann, K. T.

AU - Briscoe, W. J.

AU - Brooks, W.

AU - Bulumulla, D.

AU - Burkert, V. D.

AU - Carman, D. S.

AU - Carvajal, J. C.

AU - Celentano, A.

AU - Chatagnon, P.

AU - Chetry, T.

AU - Ciullo, G.

AU - Clark, L.

AU - Clary, B. A.

AU - Cole, P. L.

AU - Contalbrigo, M.

AU - Costantini, G.

AU - Crede, V.

AU - D'angelo, A.

AU - Dashyan, N.

AU - De Vita, R.

AU - Defurne, M.

AU - Deur, A.

AU - Dilks, C.

AU - Djalali, C.

AU - Dugger, M.

AU - Dupre, R.

AU - Egiyan, H.

AU - Ehrhart, M.

AU - Prokudin, A.

PY - 2022/2/11

Y1 - 2022/2/11

N2 - High precision measurements of the polarized electron beam-spin asymmetry in semi-inclusive deep inelastic scattering (SIDIS) from the proton have been performed using a 10.6 GeV incident electron beam and the CLAS12 spectrometer at Jefferson Lab. We report here a high precision multidimensional study of single π+ SIDIS data over a large kinematic range in Bjorken x, fractional energy, and transverse momentum of the hadron as well as photon virtualities Q2 ranging from 1-7 GeV2. In particular, the structure function ratio FLUsinφ/FUU has been determined, where FLUsinφ is a twist-3 quantity that can reveal novel aspects of emergent hadron mass and quark-gluon correlations within the nucleon. The data's impact on the evolving understanding of the underlying reaction mechanisms and their kinematic variation is explored using theoretical models for the different contributing transverse momentum dependent parton distribution functions.

AB - High precision measurements of the polarized electron beam-spin asymmetry in semi-inclusive deep inelastic scattering (SIDIS) from the proton have been performed using a 10.6 GeV incident electron beam and the CLAS12 spectrometer at Jefferson Lab. We report here a high precision multidimensional study of single π+ SIDIS data over a large kinematic range in Bjorken x, fractional energy, and transverse momentum of the hadron as well as photon virtualities Q2 ranging from 1-7 GeV2. In particular, the structure function ratio FLUsinφ/FUU has been determined, where FLUsinφ is a twist-3 quantity that can reveal novel aspects of emergent hadron mass and quark-gluon correlations within the nucleon. The data's impact on the evolving understanding of the underlying reaction mechanisms and their kinematic variation is explored using theoretical models for the different contributing transverse momentum dependent parton distribution functions.

UR - http://www.scopus.com/inward/record.url?scp=85124942326&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85124942326&partnerID=8YFLogxK

U2 - 10.1103/PhysRevLett.128.062005

DO - 10.1103/PhysRevLett.128.062005

M3 - Article

C2 - 35213183

AN - SCOPUS:85124942326

SN - 0031-9007

VL - 128

JO - Physical review letters

JF - Physical review letters

IS - 6

M1 - 062005

ER -

Multidimensional, High Precision Measurements of Beam Single Spin Asymmetries in Semi-inclusive π+ Electroproduction off Protons in the Valence Region

Abstract

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