Search for a new gauge boson in electron-nucleus fixed-target scattering by the APEX experiment

S. Abrahamyan; Z. Ahmed; K. Allada; D. Anez; T. Averett; A. Barbieri; K. Bartlett; J. Beacham; J. Bono; J. R. Boyce; P. Brindza; A. Camsonne; K. Cranmer; M. M. Dalton; C. W. De Jager; J. Donaghy; R. Essig; C. Field; E. Folts; A. Gasparian; N. Goeckner-Wald; J. Gomez; M. Graham; J. O. Hansen; D. W. Higinbotham; T. Holmstrom; J. Huang; S. Iqbal; J. Jaros; E. Jensen; A. Kelleher; M. Khandaker; J. J. Lerose; R. Lindgren; N. Liyanage; E. Long; J. Mammei; P. Markowitz; T. Maruyama; V. Maxwell; S. Mayilyan; J. McDonald; R. Michaels; K. Moffeit; V. Nelyubin; A. Odian; M. Oriunno; R. Partridge; M. Paolone; E. Piasetzky; I. Pomerantz; Y. Qiang; S. Riordan; Y. Roblin; B. Sawatzky; P. Schuster; J. Segal; L. Selvy; A. Shahinyan; R. Subedi; V. Sulkosky; S. Stepanyan; N. Toro; D. Walz; B. Wojtsekhowski; J. Zhang

doi:10.1103/PhysRevLett.107.191804

Search for a new gauge boson in electron-nucleus fixed-target scattering by the APEX experiment

S. Abrahamyan, Z. Ahmed, K. Allada, D. Anez, T. Averett, A. Barbieri, K. Bartlett, J. Beacham, J. Bono, J. R. Boyce, P. Brindza, A. Camsonne, K. Cranmer, M. M. Dalton, C. W. De Jager, J. Donaghy, R. Essig, C. Field, E. Folts, A. GasparianN. Goeckner-Wald, J. Gomez, M. Graham, J. O. Hansen, D. W. Higinbotham, T. Holmstrom, J. Huang, S. Iqbal, J. Jaros, E. Jensen, A. Kelleher, M. Khandaker, J. J. Lerose, R. Lindgren, N. Liyanage, E. Long, J. Mammei, P. Markowitz, T. Maruyama, V. Maxwell, S. Mayilyan, J. McDonald, R. Michaels, K. Moffeit, V. Nelyubin, A. Odian, M. Oriunno, R. Partridge, M. Paolone, E. Piasetzky, I. Pomerantz, Y. Qiang, S. Riordan, Y. Roblin, B. Sawatzky, P. Schuster, J. Segal, L. Selvy, A. Shahinyan, R. Subedi, V. Sulkosky, S. Stepanyan, N. Toro, D. Walz, B. Wojtsekhowski, J. Zhang

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

Abstract

We present a search at the Jefferson Laboratory for new forces mediated by sub-GeV vector bosons with weak coupling α^′ to electrons. Such a particle A^′ can be produced in electron-nucleus fixed-target scattering and then decay to an e⁺e^- pair, producing a narrow resonance in the QED trident spectrum. Using APEX test run data, we searched in the mass range 175-250 MeV, found no evidence for an A ^′→e⁺e^- reaction, and set an upper limit of α^′/αA10^-6. Our findings demonstrate that fixed-target searches can explore a new, wide, and important range of masses and couplings for sub-GeV forces.

Original language	English (US)
Article number	191804
Journal	Physical Review Letters
Volume	107
Issue number	19
DOIs	https://doi.org/10.1103/PhysRevLett.107.191804
State	Published - Nov 4 2011

ASJC Scopus subject areas

General Physics and Astronomy

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10.1103/PhysRevLett.107.191804

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Abrahamyan, S., Ahmed, Z., Allada, K., Anez, D., Averett, T., Barbieri, A., Bartlett, K., Beacham, J., Bono, J., Boyce, J. R., Brindza, P., Camsonne, A., Cranmer, K., Dalton, M. M., De Jager, C. W., Donaghy, J., Essig, R., Field, C., Folts, E., ... Zhang, J. (2011). Search for a new gauge boson in electron-nucleus fixed-target scattering by the APEX experiment. Physical Review Letters, 107(19), Article 191804. https://doi.org/10.1103/PhysRevLett.107.191804

Abrahamyan, S, Ahmed, Z, Allada, K, Anez, D, Averett, T, Barbieri, A, Bartlett, K, Beacham, J, Bono, J, Boyce, JR, Brindza, P, Camsonne, A, Cranmer, K, Dalton, MM, De Jager, CW, Donaghy, J, Essig, R, Field, C, Folts, E, Gasparian, A, Goeckner-Wald, N, Gomez, J, Graham, M, Hansen, JO, Higinbotham, DW, Holmstrom, T, Huang, J, Iqbal, S, Jaros, J, Jensen, E, Kelleher, A, Khandaker, M, Lerose, JJ, Lindgren, R, Liyanage, N, Long, E, Mammei, J, Markowitz, P, Maruyama, T, Maxwell, V, Mayilyan, S, McDonald, J, Michaels, R, Moffeit, K, Nelyubin, V, Odian, A, Oriunno, M, Partridge, R, Paolone, M, Piasetzky, E, Pomerantz, I, Qiang, Y, Riordan, S, Roblin, Y, Sawatzky, B, Schuster, P, Segal, J, Selvy, L, Shahinyan, A, Subedi, R, Sulkosky, V, Stepanyan, S, Toro, N, Walz, D, Wojtsekhowski, B & Zhang, J 2011, 'Search for a new gauge boson in electron-nucleus fixed-target scattering by the APEX experiment', Physical Review Letters, vol. 107, no. 19, 191804. https://doi.org/10.1103/PhysRevLett.107.191804

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title = "Search for a new gauge boson in electron-nucleus fixed-target scattering by the APEX experiment",

abstract = "We present a search at the Jefferson Laboratory for new forces mediated by sub-GeV vector bosons with weak coupling α′ to electrons. Such a particle A′ can be produced in electron-nucleus fixed-target scattering and then decay to an e+e- pair, producing a narrow resonance in the QED trident spectrum. Using APEX test run data, we searched in the mass range 175-250 MeV, found no evidence for an A ′→e+e- reaction, and set an upper limit of α′/αA10-6. Our findings demonstrate that fixed-target searches can explore a new, wide, and important range of masses and couplings for sub-GeV forces.",

author = "S. Abrahamyan and Z. Ahmed and K. Allada and D. Anez and T. Averett and A. Barbieri and K. Bartlett and J. Beacham and J. Bono and Boyce, {J. R.} and P. Brindza and A. Camsonne and K. Cranmer and Dalton, {M. M.} and {De Jager}, {C. W.} and J. Donaghy and R. Essig and C. Field and E. Folts and A. Gasparian and N. Goeckner-Wald and J. Gomez and M. Graham and Hansen, {J. O.} and Higinbotham, {D. W.} and T. Holmstrom and J. Huang and S. Iqbal and J. Jaros and E. Jensen and A. Kelleher and M. Khandaker and Lerose, {J. J.} and R. Lindgren and N. Liyanage and E. Long and J. Mammei and P. Markowitz and T. Maruyama and V. Maxwell and S. Mayilyan and J. McDonald and R. Michaels and K. Moffeit and V. Nelyubin and A. Odian and M. Oriunno and R. Partridge and M. Paolone and E. Piasetzky and I. Pomerantz and Y. Qiang and S. Riordan and Y. Roblin and B. Sawatzky and P. Schuster and J. Segal and L. Selvy and A. Shahinyan and R. Subedi and V. Sulkosky and S. Stepanyan and N. Toro and D. Walz and B. Wojtsekhowski and J. Zhang",

year = "2011",

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doi = "10.1103/PhysRevLett.107.191804",

language = "English (US)",

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T1 - Search for a new gauge boson in electron-nucleus fixed-target scattering by the APEX experiment

AU - Abrahamyan, S.

AU - Ahmed, Z.

AU - Allada, K.

AU - Anez, D.

AU - Averett, T.

AU - Barbieri, A.

AU - Bartlett, K.

AU - Beacham, J.

AU - Bono, J.

AU - Boyce, J. R.

AU - Brindza, P.

AU - Camsonne, A.

AU - Cranmer, K.

AU - Dalton, M. M.

AU - De Jager, C. W.

AU - Donaghy, J.

AU - Essig, R.

AU - Field, C.

AU - Folts, E.

AU - Gasparian, A.

AU - Goeckner-Wald, N.

AU - Gomez, J.

AU - Graham, M.

AU - Hansen, J. O.

AU - Higinbotham, D. W.

AU - Holmstrom, T.

AU - Huang, J.

AU - Iqbal, S.

AU - Jaros, J.

AU - Jensen, E.

AU - Kelleher, A.

AU - Khandaker, M.

AU - Lerose, J. J.

AU - Lindgren, R.

AU - Liyanage, N.

AU - Long, E.

AU - Mammei, J.

AU - Markowitz, P.

AU - Maruyama, T.

AU - Maxwell, V.

AU - Mayilyan, S.

AU - McDonald, J.

AU - Michaels, R.

AU - Moffeit, K.

AU - Nelyubin, V.

AU - Odian, A.

AU - Oriunno, M.

AU - Partridge, R.

AU - Paolone, M.

AU - Piasetzky, E.

AU - Pomerantz, I.

AU - Qiang, Y.

AU - Riordan, S.

AU - Roblin, Y.

AU - Sawatzky, B.

AU - Schuster, P.

AU - Segal, J.

AU - Selvy, L.

AU - Shahinyan, A.

AU - Subedi, R.

AU - Sulkosky, V.

AU - Stepanyan, S.

AU - Toro, N.

AU - Walz, D.

AU - Wojtsekhowski, B.

AU - Zhang, J.

PY - 2011/11/4

Y1 - 2011/11/4

N2 - We present a search at the Jefferson Laboratory for new forces mediated by sub-GeV vector bosons with weak coupling α′ to electrons. Such a particle A′ can be produced in electron-nucleus fixed-target scattering and then decay to an e+e- pair, producing a narrow resonance in the QED trident spectrum. Using APEX test run data, we searched in the mass range 175-250 MeV, found no evidence for an A ′→e+e- reaction, and set an upper limit of α′/αA10-6. Our findings demonstrate that fixed-target searches can explore a new, wide, and important range of masses and couplings for sub-GeV forces.

AB - We present a search at the Jefferson Laboratory for new forces mediated by sub-GeV vector bosons with weak coupling α′ to electrons. Such a particle A′ can be produced in electron-nucleus fixed-target scattering and then decay to an e+e- pair, producing a narrow resonance in the QED trident spectrum. Using APEX test run data, we searched in the mass range 175-250 MeV, found no evidence for an A ′→e+e- reaction, and set an upper limit of α′/αA10-6. Our findings demonstrate that fixed-target searches can explore a new, wide, and important range of masses and couplings for sub-GeV forces.

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U2 - 10.1103/PhysRevLett.107.191804

DO - 10.1103/PhysRevLett.107.191804

M3 - Article

C2 - 22181599

AN - SCOPUS:80555123864

SN - 0031-9007

VL - 107

JO - Physical Review Letters

JF - Physical Review Letters

IS - 19

M1 - 191804

ER -

Search for a new gauge boson in electron-nucleus fixed-target scattering by the APEX experiment

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