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

(STAR Collaboration)

doi:10.1103/PhysRevD.98.091103

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

(STAR Collaboration)

Creighton University
AGH University of Krakow
Ohio State University
University of Kentucky
Joint Institute for Nuclear Research
Panjab University
Variable Energy Cyclotron Centre India
Alikhanov Institute for Theoretical and Experimental Physics
Moscow Engineering Physics Institute
Texas A&M University
University of Tsukuba
Brookhaven National Laboratory
Tsinghua University
Kent State University
Central China Normal University
National Institute of Science Education and Research
University of California at Riverside
Stony Brook University
University of Houston
University of Jammu
Czech Technical University in Prague
Czech Academy of Sciences
Rice University
Lehigh University
Yale University
University of California at Davis
Shandong University
University of California at Los Angeles
National Cheng Kung University
Chinese Academy of Sciences

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

24 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

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10.1103/PhysRevD.98.091103

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@article{48cea63ece09417ba21e88604d9b8d56,

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 = "\{(STAR Collaboration)\} and 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 R. Esha and J. Jia and R. Lacey",

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",

journal = "Physical Review D",

issn = "2470-0010",

number = "9",

}

TY - JOUR

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

AU - (STAR Collaboration)

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 - Esha, R.

AU - Jia, J.

AU - Lacey, 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

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 -

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

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