Transverse momentum dependence of semi-inclusive pion production

H. Mkrtchyan; P. E. Bosted; G. S. Adams; A. Ahmidouch; T. Angelescu; J. Arrington; R. Asaturyan; O. K. Baker; N. Benmouna; C. Bertoncini; H. P. Blok; W. U. Boeglin; H. Breuer; M. E. Christy; S. H. Connell; Y. Cui; M. M. Dalton; S. Danagoulian; D. Day; T. Dodario; J. A. Dunne; D. Dutta; N. El Khayari; R. Ent; H. C. Fenker; V. V. Frolov; L. Gan; D. Gaskell; K. Hafidi; W. Hinton; R. J. Holt; T. Horn; G. M. Huber; E. Hungerford; X. Jiang; M. Jones; K. Joo; N. Kalantarians; J. J. Kelly; C. E. Keppel; V. Kubarovsky; Y. Li; Y. Liang; S. Malace; P. Markowitz; E. McGrath; P. McKee; D. G. Meekins; B. Moziak; T. Navasardyan

doi:10.1016/j.physletb.2008.05.047

Transverse momentum dependence of semi-inclusive pion production

H. Mkrtchyan, P. E. Bosted, G. S. Adams, A. Ahmidouch, T. Angelescu, J. Arrington, R. Asaturyan, O. K. Baker, N. Benmouna, C. Bertoncini, H. P. Blok, W. U. Boeglin, H. Breuer, M. E. Christy, S. H. Connell, Y. Cui, M. M. Dalton, S. Danagoulian, D. Day, T. DodarioJ. A. Dunne, D. Dutta, N. El Khayari, R. Ent, H. C. Fenker, V. V. Frolov, L. Gan, D. Gaskell, K. Hafidi, W. Hinton, R. J. Holt, T. Horn, G. M. Huber, E. Hungerford, X. Jiang, M. Jones, K. Joo, N. Kalantarians, J. J. Kelly, C. E. Keppel, V. Kubarovsky, Y. Li, Y. Liang, S. Malace, P. Markowitz, E. McGrath, P. McKee, D. G. Meekins, B. Moziak, T. Navasardyan

Physics and Astronomy (Twin Cities)

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

59 Scopus citations

Abstract

Cross sections for semi-inclusive electroproduction of charged pions (π^±) from both proton and deuteron targets were measured for 0.2 < x < 0.5, 2 < Q² < 4 GeV², 0.3 < z < 1, and P_t ² < 0.2 GeV². For P_t < 0.1 GeV, we find the azimuthal dependence to be small, as expected theoretically. For both π⁺ and π^-, the P_t dependence from the deuteron is found to be slightly weaker than from the proton. In the context of a simple model, this implies that the initial transverse momenta width of d quarks is larger than for u quarks and, contrary to expectations, the transverse momentum width of the favored fragmentation function is larger than the unfavored one.

Original language	English (US)
Pages (from-to)	20-25
Number of pages	6
Journal	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	665
Issue number	1
DOIs	https://doi.org/10.1016/j.physletb.2008.05.047
State	Published - Jul 3 2008

Bibliographical note

Funding Information:
The authors wish to thank H. Avakian, A. Afanasev, and M. Schlegel for useful discussions, and the Physics Letters referees for useful suggestions. This work is supported in part by research grants from the US Department of Energy and the US National Science Foundation. The Southeastern Universities Research Association operates the Thomas Jefferson National Accelerator Facility under the US Department of Energy contract DEAC05-84ER40150.

Access

10.1016/j.physletb.2008.05.047

OpenUrl availability

Full text

Cite this

Mkrtchyan, H., Bosted, P. E., Adams, G. S., Ahmidouch, A., Angelescu, T., Arrington, J., Asaturyan, R., Baker, O. K., Benmouna, N., Bertoncini, C., Blok, H. P., Boeglin, W. U., Breuer, H., Christy, M. E., Connell, S. H., Cui, Y., Dalton, M. M., Danagoulian, S., Day, D., ... Navasardyan, T. (2008). Transverse momentum dependence of semi-inclusive pion production. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 665(1), 20-25. https://doi.org/10.1016/j.physletb.2008.05.047

Mkrtchyan, H, Bosted, PE, Adams, GS, Ahmidouch, A, Angelescu, T, Arrington, J, Asaturyan, R, Baker, OK, Benmouna, N, Bertoncini, C, Blok, HP, Boeglin, WU, Breuer, H, Christy, ME, Connell, SH, Cui, Y, Dalton, MM, Danagoulian, S, Day, D, Dodario, T, Dunne, JA, Dutta, D, El Khayari, N, Ent, R, Fenker, HC, Frolov, VV, Gan, L, Gaskell, D, Hafidi, K, Hinton, W, Holt, RJ, Horn, T, Huber, GM, Hungerford, E, Jiang, X, Jones, M, Joo, K, Kalantarians, N, Kelly, JJ, Keppel, CE, Kubarovsky, V, Li, Y, Liang, Y, Malace, S, Markowitz, P, McGrath, E, McKee, P, Meekins, DG, Moziak, B & Navasardyan, T 2008, 'Transverse momentum dependence of semi-inclusive pion production', Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, vol. 665, no. 1, pp. 20-25. https://doi.org/10.1016/j.physletb.2008.05.047

@article{49186d44ecec4a249c8005e279ad1093,

title = "Transverse momentum dependence of semi-inclusive pion production",

abstract = "Cross sections for semi-inclusive electroproduction of charged pions (π±) from both proton and deuteron targets were measured for 0.2 < x < 0.5, 2 < Q2 < 4 GeV2, 0.3 < z < 1, and Pt 2 < 0.2 GeV2. For Pt < 0.1 GeV, we find the azimuthal dependence to be small, as expected theoretically. For both π+ and π-, the Pt dependence from the deuteron is found to be slightly weaker than from the proton. In the context of a simple model, this implies that the initial transverse momenta width of d quarks is larger than for u quarks and, contrary to expectations, the transverse momentum width of the favored fragmentation function is larger than the unfavored one.",

author = "H. Mkrtchyan and Bosted, {P. E.} and Adams, {G. S.} and A. Ahmidouch and T. Angelescu and J. Arrington and R. Asaturyan and Baker, {O. K.} and N. Benmouna and C. Bertoncini and Blok, {H. P.} and Boeglin, {W. U.} and H. Breuer and Christy, {M. E.} and Connell, {S. H.} and Y. Cui and Dalton, {M. M.} and S. Danagoulian and D. Day and T. Dodario and Dunne, {J. A.} and D. Dutta and {El Khayari}, N. and R. Ent and Fenker, {H. C.} and Frolov, {V. V.} and L. Gan and D. Gaskell and K. Hafidi and W. Hinton and Holt, {R. J.} and T. Horn and Huber, {G. M.} and E. Hungerford and X. Jiang and M. Jones and K. Joo and N. Kalantarians and Kelly, {J. J.} and Keppel, {C. E.} and V. Kubarovsky and Y. Li and Y. Liang and S. Malace and P. Markowitz and E. McGrath and P. McKee and Meekins, {D. G.} and B. Moziak and T. Navasardyan",

note = "Funding Information: The authors wish to thank H. Avakian, A. Afanasev, and M. Schlegel for useful discussions, and the Physics Letters referees for useful suggestions. This work is supported in part by research grants from the US Department of Energy and the US National Science Foundation. The Southeastern Universities Research Association operates the Thomas Jefferson National Accelerator Facility under the US Department of Energy contract DEAC05-84ER40150. ",

year = "2008",

month = jul,

day = "3",

doi = "10.1016/j.physletb.2008.05.047",

language = "English (US)",

volume = "665",

pages = "20--25",

journal = "Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics",

issn = "0370-2693",

publisher = "Elsevier",

number = "1",

}

TY - JOUR

T1 - Transverse momentum dependence of semi-inclusive pion production

AU - Mkrtchyan, H.

AU - Bosted, P. E.

AU - Adams, G. S.

AU - Ahmidouch, A.

AU - Angelescu, T.

AU - Arrington, J.

AU - Asaturyan, R.

AU - Baker, O. K.

AU - Benmouna, N.

AU - Bertoncini, C.

AU - Blok, H. P.

AU - Boeglin, W. U.

AU - Breuer, H.

AU - Christy, M. E.

AU - Connell, S. H.

AU - Cui, Y.

AU - Dalton, M. M.

AU - Danagoulian, S.

AU - Day, D.

AU - Dodario, T.

AU - Dunne, J. A.

AU - Dutta, D.

AU - El Khayari, N.

AU - Ent, R.

AU - Fenker, H. C.

AU - Frolov, V. V.

AU - Gan, L.

AU - Gaskell, D.

AU - Hafidi, K.

AU - Hinton, W.

AU - Holt, R. J.

AU - Horn, T.

AU - Huber, G. M.

AU - Hungerford, E.

AU - Jiang, X.

AU - Jones, M.

AU - Joo, K.

AU - Kalantarians, N.

AU - Kelly, J. J.

AU - Keppel, C. E.

AU - Kubarovsky, V.

AU - Li, Y.

AU - Liang, Y.

AU - Malace, S.

AU - Markowitz, P.

AU - McGrath, E.

AU - McKee, P.

AU - Meekins, D. G.

AU - Moziak, B.

AU - Navasardyan, T.

N1 - Funding Information: The authors wish to thank H. Avakian, A. Afanasev, and M. Schlegel for useful discussions, and the Physics Letters referees for useful suggestions. This work is supported in part by research grants from the US Department of Energy and the US National Science Foundation. The Southeastern Universities Research Association operates the Thomas Jefferson National Accelerator Facility under the US Department of Energy contract DEAC05-84ER40150.

PY - 2008/7/3

Y1 - 2008/7/3

N2 - Cross sections for semi-inclusive electroproduction of charged pions (π±) from both proton and deuteron targets were measured for 0.2 < x < 0.5, 2 < Q2 < 4 GeV2, 0.3 < z < 1, and Pt 2 < 0.2 GeV2. For Pt < 0.1 GeV, we find the azimuthal dependence to be small, as expected theoretically. For both π+ and π-, the Pt dependence from the deuteron is found to be slightly weaker than from the proton. In the context of a simple model, this implies that the initial transverse momenta width of d quarks is larger than for u quarks and, contrary to expectations, the transverse momentum width of the favored fragmentation function is larger than the unfavored one.

AB - Cross sections for semi-inclusive electroproduction of charged pions (π±) from both proton and deuteron targets were measured for 0.2 < x < 0.5, 2 < Q2 < 4 GeV2, 0.3 < z < 1, and Pt 2 < 0.2 GeV2. For Pt < 0.1 GeV, we find the azimuthal dependence to be small, as expected theoretically. For both π+ and π-, the Pt dependence from the deuteron is found to be slightly weaker than from the proton. In the context of a simple model, this implies that the initial transverse momenta width of d quarks is larger than for u quarks and, contrary to expectations, the transverse momentum width of the favored fragmentation function is larger than the unfavored one.

UR - http://www.scopus.com/inward/record.url?scp=44749084462&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=44749084462&partnerID=8YFLogxK

U2 - 10.1016/j.physletb.2008.05.047

DO - 10.1016/j.physletb.2008.05.047

M3 - Article

AN - SCOPUS:44749084462

SN - 0370-2693

VL - 665

SP - 20

EP - 25

JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

IS - 1

ER -

Transverse momentum dependence of semi-inclusive pion production

Abstract

Bibliographical note

Access

OpenUrl availability

Other files and links

Fingerprint

Cite this