Search for a Low-mass Higgs Boson in Y(3S)--> gamma A^0, A^0--> tau^ tau^- at BABAR

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We search for a light Higgs boson A{sup 0} in the radiative decay Y(3S) {yields} {gamma}A{sup 0}, A{sup 0} {yields} T{sup +}T{sup -}, T{sup +} {yields} e{sup +}{nu}{sub e}{nu}{sub T}, or T{sup +} {yields} {mu}{sup +} {nu}{sub {mu}T}. The data sample contains 122 x 10{sup 6} Y(3S) events recorded with the BABAR detector. We find no evidence for a narrow structure in the studied T{sup +}T{sup -} invariant mass region of 4.03 < m{sub T{sup +}T{sup -}} < 10.10 GeV/c{sup 2}. We exclude at the 90% confidence level (C.L.) a low-mass Higgs boson decaying to T{sup +}T{sup -} with a ... continued below

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7 pages

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Gabareen Mokhtar, Arafat December 9, 2009.

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We search for a light Higgs boson A{sup 0} in the radiative decay Y(3S) {yields} {gamma}A{sup 0}, A{sup 0} {yields} T{sup +}T{sup -}, T{sup +} {yields} e{sup +}{nu}{sub e}{nu}{sub T}, or T{sup +} {yields} {mu}{sup +} {nu}{sub {mu}T}. The data sample contains 122 x 10{sup 6} Y(3S) events recorded with the BABAR detector. We find no evidence for a narrow structure in the studied T{sup +}T{sup -} invariant mass region of 4.03 < m{sub T{sup +}T{sup -}} < 10.10 GeV/c{sup 2}. We exclude at the 90% confidence level (C.L.) a low-mass Higgs boson decaying to T{sup +}T{sup -} with a product branching fraction B(Y(3S) {yields} {gamma}A{sup 0}) x B(A{sup 0} {yields} T{sup +}T{sup -}) > (1.5-16) x 10{sup -5} across the mT{sup +}T{sup -} range. We also set a 90% C.L. upper limit on the T{sup +}T{sup -} decay of the {eta}{sub b} at B({eta}{sub b} {yields} T{sup +}T{sup -}) < 8%.

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7 pages

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  • Journal Name: Submitted to Physical Review Letters

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  • Report No.: SLAC-PUB-13673
  • Grant Number: AC02-76SF00515
  • Office of Scientific & Technical Information Report Number: 969925
  • Archival Resource Key: ark:/67531/metadc927350

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  • December 9, 2009

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  • Nov. 13, 2016, 7:26 p.m.

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  • Dec. 15, 2016, 3:30 p.m.

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Gabareen Mokhtar, Arafat. Search for a Low-mass Higgs Boson in Y(3S)--> gamma A^0, A^0--> tau^ tau^- at BABAR, article, December 9, 2009; United States. (digital.library.unt.edu/ark:/67531/metadc927350/: accessed October 15, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.