First Direct Limits on Lightly Ionizing Particles with Electric Charge Less than e/6

First Direct Limits on Lightly Ionizing Particles with Electric Charge Less than e/6

While the standard model of particle physics does not include free particles with fractional charge, experimental searches have not ruled out their existence. We report results from the Cryogenic Dark Matter Search (CDMS II) experiment that give the first direct-detection limits for cosmogenically p...

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Bibliographic Details
Main Authors: Agnese, R., Balakishiyeva, D., Basu Thakur, R., Bauer, D. A., Billard, Julien, Borgland, A., Bowles, M. A., Brandt, D., Brink, P. L., Bunker, R., Cabrera, B., Caldwell, D. O., Cerdeno, D. G., Chagani, H., Chen, Y., Cooley, J., Cornell, B., Crewdson, C. H., Cushman, P., Daal, M., Di Stefano, P. C. F., Doughty, T., Esteban, L., Fallows, S., Godfrey, G. L., Golwala, S. R., Hall, J., Harris, H. R., Hertel, Scott Alexander, Hofer, T., Holmgren, D., Hsu, L., Huber, M. E., Jastram, A., Kamaev, O., Kara, B., Kelsey, M. H., Kennedy, A., Kiveni, M., Koch, K., Loer, B., Lopez Asamar, E., Mahapatra, R., Mandic, V., Martinez, C., McCarthy, Kevin Ahmad, Mirabolfathi, N., Moffatt, R. A., Moore, D. C., Nelson, H., Nelson, R. H., Ogburn, R. W., Page, K., Page, W. A., Partridge, R., Pepin, M., Phipps, A., Prasad, K., Pyle, M., Qiu, H., Rau, W., Redl, P., Reisetter, A., Ricci, Y., Rogers, H. E., Saab, T., Sadoulet, B., Sander, J., Schneck, K., Schnee, R. W., Scorza, S., Serfass, B., Shank, B., Speller, D., Upadhyayula, S., Villano, A. N., Welliver, B., Wright, D. H., Yellin, S., Yen, J. J., Young, B. A., Zhang, J., Anderson, Adam Jonathan, Figueroa-Feliciano, Enectali, Leder, Alexander Friedrich
Other Authors: Massachusetts Institute of Technology. Department of Physics
Format: Article
Language:English
Published: American Physical Society 2015
Online Access:http://hdl.handle.net/1721.1/96220
https://orcid.org/0000-0003-1429-1104
https://orcid.org/0000-0002-4435-4623
https://orcid.org/0000-0001-9285-5556
Description
Summary:While the standard model of particle physics does not include free particles with fractional charge, experimental searches have not ruled out their existence. We report results from the Cryogenic Dark Matter Search (CDMS II) experiment that give the first direct-detection limits for cosmogenically produced relativistic particles with electric charge lower than e/6. A search for tracks in the six stacked detectors of each of two of the CDMS II towers finds no candidates, thereby excluding new parameter space for particles with electric charges between e/6 and e/200.

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