A demonstration of improved constraints on primordial gravitational waves with delensing

P. A.R. Ade; Z. Ahmed; M. Amiri; A. J. Anderson; J. E. Austermann; J. S. Avva; D. Barkats; R. Basu Thakur; J. A. Beall; A. N. Bender; B. A. Benson; F. Bianchini; C. A. Bischoff; L. E. Bleem; J. J. Bock; H. Boenish; E. Bullock; V. Buza; J. E. Carlstrom; C. L. Chang; J. R. Cheshire; H. C. Chiang; T. L. Chou; R. Citron; J. Connors; C. Corbett Moran; J. Cornelison; T. M. Crawford; A. T. Crites; M. Crumrine; A. Cukierman; T. De Haan; M. Dierickx; M. A. Dobbs; L. Duband; W. Everett; S. Fatigoni; J. P. Filippini; S. Fliescher; J. Gallicchio; E. M. George; T. St Germaine; N. Goeckner-Wald; D. C. Goldfinger; J. Grayson; N. Gupta; G. Hall; M. Halpern; N. W. Halverson; S. Harrison; S. Henderson; J. W. Henning; S. R. Hildebrandt; G. C. Hilton; G. P. Holder; W. L. Holzapfel; J. D. Hrubes; N. Huang; J. Hubmayr; H. Hui; K. D. Irwin; J. Kang; K. S. Karkare; E. Karpel; S. Kefeli; S. A. Kernasovskiy; L. Knox; J. M. Kovac; C. L. Kuo; K. Lau; A. T. Lee; E. M. Leitch; D. Li; A. Lowitz; A. Manzotti; J. J. McMahon; K. G. Megerian; S. S. Meyer; M. Millea; L. M. Mocanu; L. Moncelsi; J. Montgomery; A. Nadolski; T. Namikawa; T. Natoli; C. B. Netterfield; H. T. Nguyen; J. P. Nibarger; G. Noble; V. Novosad; R. O'Brient; R. W. Ogburn; Y. Omori; S. Padin; S. Palladino; S. Patil; T. Prouve; C. Pryke; B. Racine; C. L. Reichardt; C. D. Reintsema; S. Richter; J. E. Ruhl; B. R. Saliwanchik; K. K. Schaffer; A. Schillaci; B. L. Schmitt; R. Schwarz; C. D. Sheehy; C. Sievers; G. Smecher; A. Soliman; A. A. Stark; B. Steinbach; R. V. Sudiwala; G. P. Teply; K. L. Thompson; J. E. Tolan; C. Tucker; A. D. Turner; C. Umiltà; T. Veach; J. D. Vieira; A. G. Vieregg; A. Wandui; G. Wang; A. C. Weber; N. Whitehorn; D. V. Wiebe; J. Willmert; C. L. Wong; W. L.K. Wu; H. Yang; V. Yefremenko; K. W. Yoon; E. Young; C. Yu; L. Zeng; C. Zhang

doi:10.1103/PhysRevD.103.022004

A demonstration of improved constraints on primordial gravitational waves with delensing

P. A.R. Ade, Z. Ahmed, M. Amiri, A. J. Anderson, J. E. Austermann, J. S. Avva, D. Barkats, R. Basu Thakur, J. A. Beall, A. N. Bender, B. A. Benson, F. Bianchini, C. A. Bischoff, L. E. Bleem, J. J. Bock, H. Boenish, E. Bullock, V. Buza, J. E. Carlstrom, C. L. ChangJ. R. Cheshire, H. C. Chiang, T. L. Chou, R. Citron, J. Connors, C. Corbett Moran, J. Cornelison, T. M. Crawford, A. T. Crites, M. Crumrine, A. Cukierman, T. De Haan, M. Dierickx, M. A. Dobbs, L. Duband, W. Everett, S. Fatigoni, J. P. Filippini, S. Fliescher, J. Gallicchio, E. M. George, T. St Germaine, N. Goeckner-Wald, D. C. Goldfinger, J. Grayson, N. Gupta, G. Hall, M. Halpern, N. W. Halverson, S. Harrison, S. Henderson, J. W. Henning, S. R. Hildebrandt, G. C. Hilton, G. P. Holder, W. L. Holzapfel, J. D. Hrubes, N. Huang, J. Hubmayr, H. Hui, K. D. Irwin, J. Kang, K. S. Karkare, E. Karpel, S. Kefeli, S. A. Kernasovskiy, L. Knox, J. M. Kovac, C. L. Kuo, K. Lau, A. T. Lee, E. M. Leitch, D. Li, A. Lowitz, A. Manzotti, J. J. McMahon, K. G. Megerian, S. S. Meyer, M. Millea, L. M. Mocanu, L. Moncelsi, J. Montgomery, A. Nadolski, T. Namikawa, T. Natoli, C. B. Netterfield, H. T. Nguyen, J. P. Nibarger, G. Noble, V. Novosad, R. O'Brient, R. W. Ogburn, Y. Omori, S. Padin, S. Palladino, S. Patil, T. Prouve, C. Pryke, B. Racine, C. L. Reichardt, C. D. Reintsema, S. Richter, J. E. Ruhl, B. R. Saliwanchik, K. K. Schaffer, A. Schillaci, B. L. Schmitt, R. Schwarz, C. D. Sheehy, C. Sievers, G. Smecher, A. Soliman, A. A. Stark, B. Steinbach, R. V. Sudiwala, G. P. Teply, K. L. Thompson, J. E. Tolan, C. Tucker, A. D. Turner, C. Umiltà, T. Veach, J. D. Vieira, A. G. Vieregg, A. Wandui, G. Wang, A. C. Weber, N. Whitehorn, D. V. Wiebe, J. Willmert, C. L. Wong, W. L.K. Wu, H. Yang, V. Yefremenko, K. W. Yoon, E. Young, C. Yu, L. Zeng, C. Zhang

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

Abstract

We present a constraint on the tensor-to-scalar ratio, r, derived from measurements of cosmic microwave background (CMB) polarization B-modes with "delensing,"whereby the uncertainty on r contributed by the sample variance of the gravitational lensing B-modes is reduced by cross-correlating against a lensing B-mode template. This template is constructed by combining an estimate of the polarized CMB with a tracer of the projected large-scale structure. The large-scale-structure tracer used is a map of the cosmic infrared background derived from Planck satellite data, while the polarized CMB map comes from a combination of South Pole Telescope, bicep/Keck, and Planck data. We expand the bicep/Keck likelihood analysis framework to accept a lensing template and apply it to the bicep/Keck dataset collected through 2014 using the same parametric foreground modeling as in the previous analysis. From simulations, we find that the uncertainty on r is reduced by ∼10%, from σ(r)=0.024 to 0.022, which can be compared with a ∼26% reduction obtained when using a perfect lensing template or if there were zero lensing B-modes. Applying the technique to the real data, the constraint on r is improved from r0.05<0.090 to r0.05<0.082 (95% C.L.). This is the first demonstration of improvement in an r constraint through delensing.

Original language	English (US)
Article number	022004
Journal	Physical Review D
Volume	103
Issue number	2
DOIs	https://doi.org/10.1103/PhysRevD.103.022004
State	Published - Jan 26 2021

ASJC Scopus subject areas

Nuclear and High Energy Physics

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10.1103/PhysRevD.103.022004

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Ade, P. A. R., Ahmed, Z., Amiri, M., Anderson, A. J., Austermann, J. E., Avva, J. S., Barkats, D., Thakur, R. B., Beall, J. A., Bender, A. N., Benson, B. A., Bianchini, F., Bischoff, C. A., Bleem, L. E., Bock, J. J., Boenish, H., Bullock, E., Buza, V., Carlstrom, J. E., ... Zhang, C. (2021). A demonstration of improved constraints on primordial gravitational waves with delensing. Physical Review D, 103(2), Article 022004. https://doi.org/10.1103/PhysRevD.103.022004

Ade, PAR, Ahmed, Z, Amiri, M, Anderson, AJ, Austermann, JE, Avva, JS, Barkats, D, Thakur, RB, Beall, JA, Bender, AN, Benson, BA, Bianchini, F, Bischoff, CA, Bleem, LE, Bock, JJ, Boenish, H, Bullock, E, Buza, V, Carlstrom, JE, Chang, CL, Cheshire, JR, Chiang, HC, Chou, TL, Citron, R, Connors, J, Moran, CC, Cornelison, J, Crawford, TM, Crites, AT, Crumrine, M, Cukierman, A, De Haan, T, Dierickx, M, Dobbs, MA, Duband, L, Everett, W, Fatigoni, S, Filippini, JP, Fliescher, S, Gallicchio, J, George, EM, Germaine, TS, Goeckner-Wald, N, Goldfinger, DC, Grayson, J, Gupta, N, Hall, G, Halpern, M, Halverson, NW, Harrison, S, Henderson, S, Henning, JW, Hildebrandt, SR, Hilton, GC, Holder, GP, Holzapfel, WL, Hrubes, JD, Huang, N, Hubmayr, J, Hui, H, Irwin, KD, Kang, J, Karkare, KS, Karpel, E, Kefeli, S, Kernasovskiy, SA, Knox, L, Kovac, JM, Kuo, CL, Lau, K, Lee, AT, Leitch, EM, Li, D, Lowitz, A, Manzotti, A, McMahon, JJ, Megerian, KG, Meyer, SS, Millea, M, Mocanu, LM, Moncelsi, L, Montgomery, J, Nadolski, A, Namikawa, T, Natoli, T, Netterfield, CB, Nguyen, HT, Nibarger, JP, Noble, G, Novosad, V, O'Brient, R, Ogburn, RW, Omori, Y, Padin, S, Palladino, S, Patil, S, Prouve, T, Pryke, C, Racine, B, Reichardt, CL, Reintsema, CD, Richter, S, Ruhl, JE, Saliwanchik, BR, Schaffer, KK, Schillaci, A, Schmitt, BL, Schwarz, R, Sheehy, CD, Sievers, C, Smecher, G, Soliman, A, Stark, AA, Steinbach, B, Sudiwala, RV, Teply, GP, Thompson, KL, Tolan, JE, Tucker, C, Turner, AD, Umiltà, C, Veach, T, Vieira, JD, Vieregg, AG, Wandui, A, Wang, G, Weber, AC, Whitehorn, N, Wiebe, DV, Willmert, J, Wong, CL, Wu, WLK, Yang, H, Yefremenko, V, Yoon, KW, Young, E, Yu, C, Zeng, L & Zhang, C 2021, 'A demonstration of improved constraints on primordial gravitational waves with delensing', Physical Review D, vol. 103, no. 2, 022004. https://doi.org/10.1103/PhysRevD.103.022004

@article{a701950a3bc443a19633b236f839d7de,

title = "A demonstration of improved constraints on primordial gravitational waves with delensing",

abstract = "We present a constraint on the tensor-to-scalar ratio, r, derived from measurements of cosmic microwave background (CMB) polarization B-modes with {"}delensing,{"}whereby the uncertainty on r contributed by the sample variance of the gravitational lensing B-modes is reduced by cross-correlating against a lensing B-mode template. This template is constructed by combining an estimate of the polarized CMB with a tracer of the projected large-scale structure. The large-scale-structure tracer used is a map of the cosmic infrared background derived from Planck satellite data, while the polarized CMB map comes from a combination of South Pole Telescope, bicep/Keck, and Planck data. We expand the bicep/Keck likelihood analysis framework to accept a lensing template and apply it to the bicep/Keck dataset collected through 2014 using the same parametric foreground modeling as in the previous analysis. From simulations, we find that the uncertainty on r is reduced by ∼10%, from σ(r)=0.024 to 0.022, which can be compared with a ∼26% reduction obtained when using a perfect lensing template or if there were zero lensing B-modes. Applying the technique to the real data, the constraint on r is improved from r0.05<0.090 to r0.05<0.082 (95% C.L.). This is the first demonstration of improvement in an r constraint through delensing.",

author = "Ade, {P. A.R.} and Z. Ahmed and M. Amiri and Anderson, {A. J.} and Austermann, {J. E.} and Avva, {J. S.} and D. Barkats and Thakur, {R. Basu} and Beall, {J. A.} and Bender, {A. N.} and Benson, {B. A.} and F. Bianchini and Bischoff, {C. A.} and Bleem, {L. E.} and Bock, {J. J.} and H. Boenish and E. Bullock and V. Buza and Carlstrom, {J. E.} and Chang, {C. L.} and Cheshire, {J. R.} and Chiang, {H. C.} and Chou, {T. L.} and R. Citron and J. Connors and Moran, {C. Corbett} and J. Cornelison and Crawford, {T. M.} and Crites, {A. T.} and M. Crumrine and A. Cukierman and {De Haan}, T. and M. Dierickx and Dobbs, {M. A.} and L. Duband and W. Everett and S. Fatigoni and Filippini, {J. P.} and S. Fliescher and J. Gallicchio and George, {E. M.} and Germaine, {T. St} and N. Goeckner-Wald and Goldfinger, {D. C.} and J. Grayson and N. Gupta and G. Hall and M. Halpern and Halverson, {N. W.} and S. Harrison and S. Henderson and Henning, {J. W.} and Hildebrandt, {S. R.} and Hilton, {G. C.} and Holder, {G. P.} and Holzapfel, {W. L.} and Hrubes, {J. D.} and N. Huang and J. Hubmayr and H. Hui and Irwin, {K. D.} and J. Kang and Karkare, {K. S.} and E. Karpel and S. Kefeli and Kernasovskiy, {S. A.} and L. Knox and Kovac, {J. M.} and Kuo, {C. L.} and K. Lau and Lee, {A. T.} and Leitch, {E. M.} and D. Li and A. Lowitz and A. Manzotti and McMahon, {J. J.} and Megerian, {K. G.} and Meyer, {S. S.} and M. Millea and Mocanu, {L. M.} and L. Moncelsi and J. Montgomery and A. Nadolski and T. Namikawa and T. Natoli and Netterfield, {C. B.} and Nguyen, {H. T.} and Nibarger, {J. P.} and G. Noble and V. Novosad and R. O'Brient and Ogburn, {R. W.} and Y. Omori and S. Padin and S. Palladino and S. Patil and T. Prouve and C. Pryke and B. Racine and Reichardt, {C. L.} and Reintsema, {C. D.} and S. Richter and Ruhl, {J. E.} and Saliwanchik, {B. R.} and Schaffer, {K. K.} and A. Schillaci and Schmitt, {B. L.} and R. Schwarz and Sheehy, {C. D.} and C. Sievers and G. Smecher and A. Soliman and Stark, {A. A.} and B. Steinbach and Sudiwala, {R. V.} and Teply, {G. P.} and Thompson, {K. L.} and Tolan, {J. E.} and C. Tucker and Turner, {A. D.} and C. Umilt{\`a} and T. Veach and Vieira, {J. D.} and Vieregg, {A. G.} and A. Wandui and G. Wang and Weber, {A. C.} and N. Whitehorn and Wiebe, {D. V.} and J. Willmert and Wong, {C. L.} and Wu, {W. L.K.} and H. Yang and V. Yefremenko and Yoon, {K. W.} and E. Young and C. Yu and L. Zeng and C. Zhang",

note = "Publisher Copyright: {\textcopyright} 2021 American Physical Society. ",

year = "2021",

month = jan,

day = "26",

doi = "10.1103/PhysRevD.103.022004",

language = "English (US)",

volume = "103",

journal = "Physical Review D",

issn = "2470-0010",

publisher = "American Physical Society",

number = "2",

}

TY - JOUR

T1 - A demonstration of improved constraints on primordial gravitational waves with delensing

AU - Ade, P. A.R.

AU - Ahmed, Z.

AU - Amiri, M.

AU - Anderson, A. J.

AU - Austermann, J. E.

AU - Avva, J. S.

AU - Barkats, D.

AU - Thakur, R. Basu

AU - Beall, J. A.

AU - Bender, A. N.

AU - Benson, B. A.

AU - Bianchini, F.

AU - Bischoff, C. A.

AU - Bleem, L. E.

AU - Bock, J. J.

AU - Boenish, H.

AU - Bullock, E.

AU - Buza, V.

AU - Carlstrom, J. E.

AU - Chang, C. L.

AU - Cheshire, J. R.

AU - Chiang, H. C.

AU - Chou, T. L.

AU - Citron, R.

AU - Connors, J.

AU - Moran, C. Corbett

AU - Cornelison, J.

AU - Crawford, T. M.

AU - Crites, A. T.

AU - Crumrine, M.

AU - Cukierman, A.

AU - De Haan, T.

AU - Dierickx, M.

AU - Dobbs, M. A.

AU - Duband, L.

AU - Everett, W.

AU - Fatigoni, S.

AU - Filippini, J. P.

AU - Fliescher, S.

AU - Gallicchio, J.

AU - George, E. M.

AU - Germaine, T. St

AU - Goeckner-Wald, N.

AU - Goldfinger, D. C.

AU - Grayson, J.

AU - Gupta, N.

AU - Hall, G.

AU - Halpern, M.

AU - Halverson, N. W.

AU - Harrison, S.

AU - Henderson, S.

AU - Henning, J. W.

AU - Hildebrandt, S. R.

AU - Hilton, G. C.

AU - Holder, G. P.

AU - Holzapfel, W. L.

AU - Hrubes, J. D.

AU - Huang, N.

AU - Hubmayr, J.

AU - Hui, H.

AU - Irwin, K. D.

AU - Kang, J.

AU - Karkare, K. S.

AU - Karpel, E.

AU - Kefeli, S.

AU - Kernasovskiy, S. A.

AU - Knox, L.

AU - Kovac, J. M.

AU - Kuo, C. L.

AU - Lau, K.

AU - Lee, A. T.

AU - Leitch, E. M.

AU - Li, D.

AU - Lowitz, A.

AU - Manzotti, A.

AU - McMahon, J. J.

AU - Megerian, K. G.

AU - Meyer, S. S.

AU - Millea, M.

AU - Mocanu, L. M.

AU - Moncelsi, L.

AU - Montgomery, J.

AU - Nadolski, A.

AU - Namikawa, T.

AU - Natoli, T.

AU - Netterfield, C. B.

AU - Nguyen, H. T.

AU - Nibarger, J. P.

AU - Noble, G.

AU - Novosad, V.

AU - O'Brient, R.

AU - Ogburn, R. W.

AU - Omori, Y.

AU - Padin, S.

AU - Palladino, S.

AU - Patil, S.

AU - Prouve, T.

AU - Pryke, C.

AU - Racine, B.

AU - Reichardt, C. L.

AU - Reintsema, C. D.

AU - Richter, S.

AU - Ruhl, J. E.

AU - Saliwanchik, B. R.

AU - Schaffer, K. K.

AU - Schillaci, A.

AU - Schmitt, B. L.

AU - Schwarz, R.

AU - Sheehy, C. D.

AU - Sievers, C.

AU - Smecher, G.

AU - Soliman, A.

AU - Stark, A. A.

AU - Steinbach, B.

AU - Sudiwala, R. V.

AU - Teply, G. P.

AU - Thompson, K. L.

AU - Tolan, J. E.

AU - Tucker, C.

AU - Turner, A. D.

AU - Umiltà, C.

AU - Veach, T.

AU - Vieira, J. D.

AU - Vieregg, A. G.

AU - Wandui, A.

AU - Wang, G.

AU - Weber, A. C.

AU - Whitehorn, N.

AU - Wiebe, D. V.

AU - Willmert, J.

AU - Wong, C. L.

AU - Wu, W. L.K.

AU - Yang, H.

AU - Yefremenko, V.

AU - Yoon, K. W.

AU - Young, E.

AU - Yu, C.

AU - Zeng, L.

AU - Zhang, C.

PY - 2021/1/26

Y1 - 2021/1/26

N2 - We present a constraint on the tensor-to-scalar ratio, r, derived from measurements of cosmic microwave background (CMB) polarization B-modes with "delensing,"whereby the uncertainty on r contributed by the sample variance of the gravitational lensing B-modes is reduced by cross-correlating against a lensing B-mode template. This template is constructed by combining an estimate of the polarized CMB with a tracer of the projected large-scale structure. The large-scale-structure tracer used is a map of the cosmic infrared background derived from Planck satellite data, while the polarized CMB map comes from a combination of South Pole Telescope, bicep/Keck, and Planck data. We expand the bicep/Keck likelihood analysis framework to accept a lensing template and apply it to the bicep/Keck dataset collected through 2014 using the same parametric foreground modeling as in the previous analysis. From simulations, we find that the uncertainty on r is reduced by ∼10%, from σ(r)=0.024 to 0.022, which can be compared with a ∼26% reduction obtained when using a perfect lensing template or if there were zero lensing B-modes. Applying the technique to the real data, the constraint on r is improved from r0.05<0.090 to r0.05<0.082 (95% C.L.). This is the first demonstration of improvement in an r constraint through delensing.

AB - We present a constraint on the tensor-to-scalar ratio, r, derived from measurements of cosmic microwave background (CMB) polarization B-modes with "delensing,"whereby the uncertainty on r contributed by the sample variance of the gravitational lensing B-modes is reduced by cross-correlating against a lensing B-mode template. This template is constructed by combining an estimate of the polarized CMB with a tracer of the projected large-scale structure. The large-scale-structure tracer used is a map of the cosmic infrared background derived from Planck satellite data, while the polarized CMB map comes from a combination of South Pole Telescope, bicep/Keck, and Planck data. We expand the bicep/Keck likelihood analysis framework to accept a lensing template and apply it to the bicep/Keck dataset collected through 2014 using the same parametric foreground modeling as in the previous analysis. From simulations, we find that the uncertainty on r is reduced by ∼10%, from σ(r)=0.024 to 0.022, which can be compared with a ∼26% reduction obtained when using a perfect lensing template or if there were zero lensing B-modes. Applying the technique to the real data, the constraint on r is improved from r0.05<0.090 to r0.05<0.082 (95% C.L.). This is the first demonstration of improvement in an r constraint through delensing.

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UR - http://www.scopus.com/inward/citedby.url?scp=85100431321&partnerID=8YFLogxK

U2 - 10.1103/PhysRevD.103.022004

DO - 10.1103/PhysRevD.103.022004

M3 - Article

AN - SCOPUS:85100431321

SN - 2470-0010

VL - 103

JO - Physical Review D

JF - Physical Review D

IS - 2

M1 - 022004

ER -

A demonstration of improved constraints on primordial gravitational waves with delensing

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