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What is the age of the universe in the LCDM model?

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The age of the universe in the LCDM model is estimated to be around 14 Gyr for z=0 . This estimation is based on the total age of the universe estimated from old globular clusters . However, there are some concerns regarding the age problem in the LCDM model. Previous studies have found that the best-fit age of the old quasar APM 08279+5255 at z=3.91 is around 2.3 Gyr with a 1 sigma lower limit of 2.0 Gyr and a lowest limit of 1.7 Gyr . The LCDM model can only accommodate the age of APM 08279+5255 at 1 sigma deviation, suggesting that the LCDM model may suffer from an age problem .

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Open access•Journal Article•DOI The history of star formation in a LCDM universe Volker Springel, Lars Hernquist - Show less +1 more 22 Jun 2002-arXiv: Astrophysics 532 Citations	The age of the universe is not explicitly mentioned in the provided paper.
Open access•Journal Article•DOI The age problem in $\Lambda$CDM model Rong-Jia Yang, Shuang Nan Zhang - Show less +1 more 16 May 2009-arXiv: Cosmology and Nongalactic Astrophysics 66 Citations	The age of the Universe in the $\Lambda$CDM model is estimated to be 14 Gyr for $z=0$ according to the paper.
Open access•Journal Article•DOI The relative and absolute ages of old globular clusters in the LCDM framework Michele Trenti, Paolo Padoan, Raul Jimenez, Raul Jimenez - Show less +3 more 09 Feb 2015-arXiv: Astrophysics of Galaxies 36 Citations	The age of the universe in the LCDM model is not mentioned in the provided paper. The paper discusses the formation and properties of old globular clusters, not the age of the universe.
Journal Article•DOI Age problem in the creation cold dark matter cosmology model Jun Chen, Jun Chen, Puxun Wu, Hongwei Yu, Hongwei Yu, Zheng-Xiang Li - Show less +5 more 03 Feb 2012-European Physical Journal C 10 Citations	The provided paper is about the age problem in the creation cold dark matter (CCDM) cosmology model. It does not provide information about the age of the universe in the LCDM model.

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