Transverse spin transfer to Λ and Λ  hyperons in polarized proton-proton collisions at s =200 GeV

doi:10.1103/PhysRevD.98.091103

Transverse spin transfer to Λ and Λ hyperons in polarized proton-proton collisions at s =200 GeV

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19 Scopus citations

Abstract

The transverse spin transfer from polarized protons to Λ and Λ hyperons is expected to provide sensitivity to the transversity distribution of the nucleon and to the transversely polarized fragmentation functions. We report the first measurement of the transverse spin transfer to Λ and Λ along the polarization direction of the fragmenting quark, DTT, in transversely polarized proton-proton collisions at s=200 GeV with the STAR detector at RHIC. The data correspond to an integrated luminosity of 18 pb-1 and cover the pseudorapidity range |η|<1.2 and transverse momenta pT up to 8 GeV/c. The dependence on pT and η are presented. The DTT results are found to be comparable with a model prediction and are also consistent with zero within uncertainties.

Original language	English
Article number	091103
Journal	Physical Review D
Volume	98
Issue number	9
DOIs	https://doi.org/10.1103/PhysRevD.98.091103
State	Published - Nov 1 2018

Bibliographical note

Publisher Copyright:
© 2018 authors. Published by the American Physical Society.

Funding

We thank the RHIC Operations Group and RCF at BNL, the NERSC Center at LBNL, and the Open Science Grid consortium for providing resources and support. This work was supported in part by the Office of Nuclear Physics within the U.S. DOE Office of Science, the U.S. National Science Foundation, the Ministry of Education and Science of the Russian Federation, Natural Science Foundation of China, Chinese Academy of Science, the Ministry of Science and Technology of China, the Major State Basic Research Development Program in China (No. 2014CB845406) and the Chinese Ministry of Education, the National Research Foundation of Korea, Czech Science Foundation and Ministry of Education, Youth and Sports of the Czech Republic, Department of Atomic Energy and Department of Science and Technology of the Government of India, the National Science Centre of Poland, the Ministry of Science, Education and Sports of the Republic of Croatia, RosAtom of Russia and German Bundesministerium fur Bildung, Wissenschaft, Forschung and Technologie (BMBF) and the Helmholtz Association.

Funders	Funder number
RosAtom of Russia and German Bundesministerium fur Bildung, Wissenschaft, Forschung and Technologie
U.S. Department of Energy Chinese Academy of Sciences Guangzhou Municipal Science and Technology Project Oak Ridge National Laboratory Extreme Science and Engineering Discovery Environment National Science Foundation National Energy Research Scientific Computing Center National Natural Science Foundation of China	1614545
U.S. Department of Energy Chinese Academy of Sciences Guangzhou Municipal Science and Technology Project Oak Ridge National Laboratory Extreme Science and Engineering Discovery Environment National Science Foundation National Energy Research Scientific Computing Center National Natural Science Foundation of China
National Science Foundation Office of International Science and Engineering
Horia Hulubei National Institute for Physics and Nuclear Engineering
Department of Science and Technology, Ministry of Science and Technology, India
National Natural Science Foundation of China (NSFC)
Ministerstvo Školství, Mládeže a Tělovýchovy
Grantová Agentura České Republiky
Ministry of Education of the People's Republic of China
Bundesministerium für Bildung und Forschung
Chinese Academy of Sciences
Ministry of Science and Technology of the People's Republic of China
Ministarstvo Obrazovanja, Znanosti i Sporta
Ministry for Education and Science of the Russian Federation
National Research Foundation of Korea
Narodowe Centrum Nauki
Max Delbrück Center for Molecular Medicine in the Helmholtz Association
Major State Basic Research Development Program of China	2014CB845406
Major State Basic Research Development Program of China

ASJC Scopus subject areas

Nuclear and High Energy Physics

Access to Document

10.1103/PhysRevD.98.091103

Cite this

@article{97ec8adf013145f48e8f4f4308e81294,

title = "Transverse spin transfer to Λ and Λ hyperons in polarized proton-proton collisions at s =200 GeV",

abstract = "The transverse spin transfer from polarized protons to Λ and Λ hyperons is expected to provide sensitivity to the transversity distribution of the nucleon and to the transversely polarized fragmentation functions. We report the first measurement of the transverse spin transfer to Λ and Λ along the polarization direction of the fragmenting quark, DTT, in transversely polarized proton-proton collisions at s=200 GeV with the STAR detector at RHIC. The data correspond to an integrated luminosity of 18 pb-1 and cover the pseudorapidity range |η|<1.2 and transverse momenta pT up to 8 GeV/c. The dependence on pT and η are presented. The DTT results are found to be comparable with a model prediction and are also consistent with zero within uncertainties.",

author = "J. Adam and L. Adamczyk and Adams, \{J. R.\} and Adkins, \{J. K.\} and G. Agakishiev and Aggarwal, \{M. M.\} and Z. Ahammed and I. Alekseev and Anderson, \{D. M.\} and R. Aoyama and A. Aparin and D. Arkhipkin and Aschenauer, \{E. C.\} and Ashraf, \{M. U.\} and F. Atetalla and A. Attri and Averichev, \{G. S.\} and X. Bai and V. Bairathi and K. Barish and Bassill, \{A. J.\} and A. Behera and R. Bellwied and A. Bhasin and Bhati, \{A. K.\} and J. Bielcik and J. Bielcikova and Bland, \{L. C.\} and Bordyuzhin, \{I. G.\} and Brandenburg, \{J. D.\} and Brandin, \{A. V.\} and D. Brown and J. Bryslawskyj and I. Bunzarov and J. Butterworth and H. Caines and S{\'a}nchez, \{M. Calder{\'o}n De La Barca\} and D. Cebra and I. Chakaberia and P. Chaloupka and Chan, \{B. K.\} and Chang, \{F. H.\} and Z. Chang and N. Chankova-Bunzarova and A. Chatterjee and S. Chattopadhyay and Chen, \{J. H.\} and X. Chen and X. Chen and R. Fatemi",

note = "Publisher Copyright: {\textcopyright} 2018 authors. Published by the American Physical Society.",

year = "2018",

month = nov,

day = "1",

doi = "10.1103/PhysRevD.98.091103",

language = "English",

volume = "98",

number = "9",

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TY - JOUR

T1 - Transverse spin transfer to Λ and Λ hyperons in polarized proton-proton collisions at s =200 GeV

AU - Adam, J.

AU - Adamczyk, L.

AU - Adams, J. R.

AU - Adkins, J. K.

AU - Agakishiev, G.

AU - Aggarwal, M. M.

AU - Ahammed, Z.

AU - Alekseev, I.

AU - Anderson, D. M.

AU - Aoyama, R.

AU - Aparin, A.

AU - Arkhipkin, D.

AU - Aschenauer, E. C.

AU - Ashraf, M. U.

AU - Atetalla, F.

AU - Attri, A.

AU - Averichev, G. S.

AU - Bai, X.

AU - Bairathi, V.

AU - Barish, K.

AU - Bassill, A. J.

AU - Behera, A.

AU - Bellwied, R.

AU - Bhasin, A.

AU - Bhati, A. K.

AU - Bielcik, J.

AU - Bielcikova, J.

AU - Bland, L. C.

AU - Bordyuzhin, I. G.

AU - Brandenburg, J. D.

AU - Brandin, A. V.

AU - Brown, D.

AU - Bryslawskyj, J.

AU - Bunzarov, I.

AU - Butterworth, J.

AU - Caines, H.

AU - Sánchez, M. Calderón De La Barca

AU - Cebra, D.

AU - Chakaberia, I.

AU - Chaloupka, P.

AU - Chan, B. K.

AU - Chang, F. H.

AU - Chang, Z.

AU - Chankova-Bunzarova, N.

AU - Chatterjee, A.

AU - Chattopadhyay, S.

AU - Chen, J. H.

AU - Chen, X.

AU - Fatemi, R.

PY - 2018/11/1

Y1 - 2018/11/1

N2 - The transverse spin transfer from polarized protons to Λ and Λ hyperons is expected to provide sensitivity to the transversity distribution of the nucleon and to the transversely polarized fragmentation functions. We report the first measurement of the transverse spin transfer to Λ and Λ along the polarization direction of the fragmenting quark, DTT, in transversely polarized proton-proton collisions at s=200 GeV with the STAR detector at RHIC. The data correspond to an integrated luminosity of 18 pb-1 and cover the pseudorapidity range |η|<1.2 and transverse momenta pT up to 8 GeV/c. The dependence on pT and η are presented. The DTT results are found to be comparable with a model prediction and are also consistent with zero within uncertainties.

AB - The transverse spin transfer from polarized protons to Λ and Λ hyperons is expected to provide sensitivity to the transversity distribution of the nucleon and to the transversely polarized fragmentation functions. We report the first measurement of the transverse spin transfer to Λ and Λ along the polarization direction of the fragmenting quark, DTT, in transversely polarized proton-proton collisions at s=200 GeV with the STAR detector at RHIC. The data correspond to an integrated luminosity of 18 pb-1 and cover the pseudorapidity range |η|<1.2 and transverse momenta pT up to 8 GeV/c. The dependence on pT and η are presented. The DTT results are found to be comparable with a model prediction and are also consistent with zero within uncertainties.

UR - https://www.scopus.com/pages/publications/85058092556

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U2 - 10.1103/PhysRevD.98.091103

DO - 10.1103/PhysRevD.98.091103

M3 - Article

AN - SCOPUS:85058092556

SN - 2470-0010

VL - 98

JO - Physical Review D

JF - Physical Review D

IS - 9

M1 - 091103

ER -