Dark Matter Search Results from the PICO-2L C3 F8 Bubble Chamber

C. Amole, M. Ardid, D. M. Asner, D. Baxter, E. Behnke, P. Bhattacharjee, H. Borsodi, M. Bou-Cabo, S. J. Brice, D. Broemmelsiek, K. Clark, J. I. Collar, P. S. Cooper, M. Crisler, C. E. Dahl, S. Daley, M. Das, F. Debris, N. Dhungana, J. FarineI. Felis, R. Filgas, M. Fines-Neuschild, F. Girard, G. Giroux, M. Hai, J. Hall, O. Harris, C. M. Jackson, M. Jin, C. B. Krauss, M. Lafrenière, M. Laurin, I. Lawson, I. Levine, W. H. Lippincott, E. Mann, J. P. Martin, D. Maurya, P. Mitra, R. Neilson, A. J. Noble, A. Plante, R. B. Podviianiuk, S. Priya, A. E. Robinson, M. Ruschman, O. Scallon, S. Seth, A. Sonnenschein, N. Starinski, I. Štekl, E. Vázquez-Jáuregui, J. Wells, U. Wichoski, V. Zacek, J. Zhang

Research output: Contribution to journalArticle

106 Citations (Scopus)

Abstract

New data are reported from the operation of a 2 liter C3F8 bubble chamber in the SNOLAB underground laboratory, with a total exposure of 211.5 kg days at four different energy thresholds below 10 keV. These data show that C3F8 provides excellent electron-recoil and alpha rejection capabilities at very low thresholds. The chamber exhibits an electron-recoil sensitivity of <3.5×10-10 and an alpha rejection factor of >98.2%. These data also include the first observation of a dependence of acoustic signal on alpha energy. Twelve single nuclear recoil event candidates were observed during the run. The candidate events exhibit timing characteristics that are not consistent with the hypothesis of a uniform time distribution, and no evidence for a dark matter signal is claimed. These data provide the most sensitive direct detection constraints on WIMP-proton spin-dependent scattering to date, with significant sensitivity at low WIMP masses for spin-independent WIMP-nucleon scattering.

Original languageEnglish (US)
Article number231302
JournalPhysical Review Letters
Volume114
Issue number23
DOIs
StatePublished - Jun 11 2015

Fingerprint

bubble chambers
weakly interacting massive particles
dark matter
thresholds
sensitivity
scattering
rejection
electrons
chambers
time measurement
protons
acoustics
energy

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

Cite this

Amole, C., Ardid, M., Asner, D. M., Baxter, D., Behnke, E., Bhattacharjee, P., ... Zhang, J. (2015). Dark Matter Search Results from the PICO-2L C3 F8 Bubble Chamber. Physical Review Letters, 114(23), [231302]. https://doi.org/10.1103/PhysRevLett.114.231302
Amole, C. ; Ardid, M. ; Asner, D. M. ; Baxter, D. ; Behnke, E. ; Bhattacharjee, P. ; Borsodi, H. ; Bou-Cabo, M. ; Brice, S. J. ; Broemmelsiek, D. ; Clark, K. ; Collar, J. I. ; Cooper, P. S. ; Crisler, M. ; Dahl, C. E. ; Daley, S. ; Das, M. ; Debris, F. ; Dhungana, N. ; Farine, J. ; Felis, I. ; Filgas, R. ; Fines-Neuschild, M. ; Girard, F. ; Giroux, G. ; Hai, M. ; Hall, J. ; Harris, O. ; Jackson, C. M. ; Jin, M. ; Krauss, C. B. ; Lafrenière, M. ; Laurin, M. ; Lawson, I. ; Levine, I. ; Lippincott, W. H. ; Mann, E. ; Martin, J. P. ; Maurya, D. ; Mitra, P. ; Neilson, R. ; Noble, A. J. ; Plante, A. ; Podviianiuk, R. B. ; Priya, S. ; Robinson, A. E. ; Ruschman, M. ; Scallon, O. ; Seth, S. ; Sonnenschein, A. ; Starinski, N. ; Štekl, I. ; Vázquez-Jáuregui, E. ; Wells, J. ; Wichoski, U. ; Zacek, V. ; Zhang, J. / Dark Matter Search Results from the PICO-2L C3 F8 Bubble Chamber. In: Physical Review Letters. 2015 ; Vol. 114, No. 23.
@article{1ae396cb5b584ab29979428bbfade609,
title = "Dark Matter Search Results from the PICO-2L C3 F8 Bubble Chamber",
abstract = "New data are reported from the operation of a 2 liter C3F8 bubble chamber in the SNOLAB underground laboratory, with a total exposure of 211.5 kg days at four different energy thresholds below 10 keV. These data show that C3F8 provides excellent electron-recoil and alpha rejection capabilities at very low thresholds. The chamber exhibits an electron-recoil sensitivity of <3.5×10-10 and an alpha rejection factor of >98.2{\%}. These data also include the first observation of a dependence of acoustic signal on alpha energy. Twelve single nuclear recoil event candidates were observed during the run. The candidate events exhibit timing characteristics that are not consistent with the hypothesis of a uniform time distribution, and no evidence for a dark matter signal is claimed. These data provide the most sensitive direct detection constraints on WIMP-proton spin-dependent scattering to date, with significant sensitivity at low WIMP masses for spin-independent WIMP-nucleon scattering.",
author = "C. Amole and M. Ardid and Asner, {D. M.} and D. Baxter and E. Behnke and P. Bhattacharjee and H. Borsodi and M. Bou-Cabo and Brice, {S. J.} and D. Broemmelsiek and K. Clark and Collar, {J. I.} and Cooper, {P. S.} and M. Crisler and Dahl, {C. E.} and S. Daley and M. Das and F. Debris and N. Dhungana and J. Farine and I. Felis and R. Filgas and M. Fines-Neuschild and F. Girard and G. Giroux and M. Hai and J. Hall and O. Harris and Jackson, {C. M.} and M. Jin and Krauss, {C. B.} and M. Lafreni{\`e}re and M. Laurin and I. Lawson and I. Levine and Lippincott, {W. H.} and E. Mann and Martin, {J. P.} and D. Maurya and P. Mitra and R. Neilson and Noble, {A. J.} and A. Plante and Podviianiuk, {R. B.} and S. Priya and Robinson, {A. E.} and M. Ruschman and O. Scallon and S. Seth and A. Sonnenschein and N. Starinski and I. Štekl and E. V{\'a}zquez-J{\'a}uregui and J. Wells and U. Wichoski and V. Zacek and J. Zhang",
year = "2015",
month = "6",
day = "11",
doi = "10.1103/PhysRevLett.114.231302",
language = "English (US)",
volume = "114",
journal = "Physical Review Letters",
issn = "0031-9007",
publisher = "American Physical Society",
number = "23",

}

Amole, C, Ardid, M, Asner, DM, Baxter, D, Behnke, E, Bhattacharjee, P, Borsodi, H, Bou-Cabo, M, Brice, SJ, Broemmelsiek, D, Clark, K, Collar, JI, Cooper, PS, Crisler, M, Dahl, CE, Daley, S, Das, M, Debris, F, Dhungana, N, Farine, J, Felis, I, Filgas, R, Fines-Neuschild, M, Girard, F, Giroux, G, Hai, M, Hall, J, Harris, O, Jackson, CM, Jin, M, Krauss, CB, Lafrenière, M, Laurin, M, Lawson, I, Levine, I, Lippincott, WH, Mann, E, Martin, JP, Maurya, D, Mitra, P, Neilson, R, Noble, AJ, Plante, A, Podviianiuk, RB, Priya, S, Robinson, AE, Ruschman, M, Scallon, O, Seth, S, Sonnenschein, A, Starinski, N, Štekl, I, Vázquez-Jáuregui, E, Wells, J, Wichoski, U, Zacek, V & Zhang, J 2015, 'Dark Matter Search Results from the PICO-2L C3 F8 Bubble Chamber', Physical Review Letters, vol. 114, no. 23, 231302. https://doi.org/10.1103/PhysRevLett.114.231302

Dark Matter Search Results from the PICO-2L C3 F8 Bubble Chamber. / Amole, C.; Ardid, M.; Asner, D. M.; Baxter, D.; Behnke, E.; Bhattacharjee, P.; Borsodi, H.; Bou-Cabo, M.; Brice, S. J.; Broemmelsiek, D.; Clark, K.; Collar, J. I.; Cooper, P. S.; Crisler, M.; Dahl, C. E.; Daley, S.; Das, M.; Debris, F.; Dhungana, N.; Farine, J.; Felis, I.; Filgas, R.; Fines-Neuschild, M.; Girard, F.; Giroux, G.; Hai, M.; Hall, J.; Harris, O.; Jackson, C. M.; Jin, M.; Krauss, C. B.; Lafrenière, M.; Laurin, M.; Lawson, I.; Levine, I.; Lippincott, W. H.; Mann, E.; Martin, J. P.; Maurya, D.; Mitra, P.; Neilson, R.; Noble, A. J.; Plante, A.; Podviianiuk, R. B.; Priya, S.; Robinson, A. E.; Ruschman, M.; Scallon, O.; Seth, S.; Sonnenschein, A.; Starinski, N.; Štekl, I.; Vázquez-Jáuregui, E.; Wells, J.; Wichoski, U.; Zacek, V.; Zhang, J.

In: Physical Review Letters, Vol. 114, No. 23, 231302, 11.06.2015.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Dark Matter Search Results from the PICO-2L C3 F8 Bubble Chamber

AU - Amole, C.

AU - Ardid, M.

AU - Asner, D. M.

AU - Baxter, D.

AU - Behnke, E.

AU - Bhattacharjee, P.

AU - Borsodi, H.

AU - Bou-Cabo, M.

AU - Brice, S. J.

AU - Broemmelsiek, D.

AU - Clark, K.

AU - Collar, J. I.

AU - Cooper, P. S.

AU - Crisler, M.

AU - Dahl, C. E.

AU - Daley, S.

AU - Das, M.

AU - Debris, F.

AU - Dhungana, N.

AU - Farine, J.

AU - Felis, I.

AU - Filgas, R.

AU - Fines-Neuschild, M.

AU - Girard, F.

AU - Giroux, G.

AU - Hai, M.

AU - Hall, J.

AU - Harris, O.

AU - Jackson, C. M.

AU - Jin, M.

AU - Krauss, C. B.

AU - Lafrenière, M.

AU - Laurin, M.

AU - Lawson, I.

AU - Levine, I.

AU - Lippincott, W. H.

AU - Mann, E.

AU - Martin, J. P.

AU - Maurya, D.

AU - Mitra, P.

AU - Neilson, R.

AU - Noble, A. J.

AU - Plante, A.

AU - Podviianiuk, R. B.

AU - Priya, S.

AU - Robinson, A. E.

AU - Ruschman, M.

AU - Scallon, O.

AU - Seth, S.

AU - Sonnenschein, A.

AU - Starinski, N.

AU - Štekl, I.

AU - Vázquez-Jáuregui, E.

AU - Wells, J.

AU - Wichoski, U.

AU - Zacek, V.

AU - Zhang, J.

PY - 2015/6/11

Y1 - 2015/6/11

N2 - New data are reported from the operation of a 2 liter C3F8 bubble chamber in the SNOLAB underground laboratory, with a total exposure of 211.5 kg days at four different energy thresholds below 10 keV. These data show that C3F8 provides excellent electron-recoil and alpha rejection capabilities at very low thresholds. The chamber exhibits an electron-recoil sensitivity of <3.5×10-10 and an alpha rejection factor of >98.2%. These data also include the first observation of a dependence of acoustic signal on alpha energy. Twelve single nuclear recoil event candidates were observed during the run. The candidate events exhibit timing characteristics that are not consistent with the hypothesis of a uniform time distribution, and no evidence for a dark matter signal is claimed. These data provide the most sensitive direct detection constraints on WIMP-proton spin-dependent scattering to date, with significant sensitivity at low WIMP masses for spin-independent WIMP-nucleon scattering.

AB - New data are reported from the operation of a 2 liter C3F8 bubble chamber in the SNOLAB underground laboratory, with a total exposure of 211.5 kg days at four different energy thresholds below 10 keV. These data show that C3F8 provides excellent electron-recoil and alpha rejection capabilities at very low thresholds. The chamber exhibits an electron-recoil sensitivity of <3.5×10-10 and an alpha rejection factor of >98.2%. These data also include the first observation of a dependence of acoustic signal on alpha energy. Twelve single nuclear recoil event candidates were observed during the run. The candidate events exhibit timing characteristics that are not consistent with the hypothesis of a uniform time distribution, and no evidence for a dark matter signal is claimed. These data provide the most sensitive direct detection constraints on WIMP-proton spin-dependent scattering to date, with significant sensitivity at low WIMP masses for spin-independent WIMP-nucleon scattering.

UR - http://www.scopus.com/inward/record.url?scp=84935872353&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84935872353&partnerID=8YFLogxK

U2 - 10.1103/PhysRevLett.114.231302

DO - 10.1103/PhysRevLett.114.231302

M3 - Article

C2 - 26196790

AN - SCOPUS:84935872353

VL - 114

JO - Physical Review Letters

JF - Physical Review Letters

SN - 0031-9007

IS - 23

M1 - 231302

ER -

Amole C, Ardid M, Asner DM, Baxter D, Behnke E, Bhattacharjee P et al. Dark Matter Search Results from the PICO-2L C3 F8 Bubble Chamber. Physical Review Letters. 2015 Jun 11;114(23). 231302. https://doi.org/10.1103/PhysRevLett.114.231302