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Phys. J. C"],"published-print":{"date-parts":[[2022,2]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>We develop a template method for the measurement of the polarisation of <jats:inline-formula><jats:alternatives><jats:tex-math>$$t {\\bar{t}}$$<\/jats:tex-math><mml:math xmlns:mml=\"http:\/\/www.w3.org\/1998\/Math\/MathML\">\n                  <mml:mrow>\n                    <mml:mi>t<\/mml:mi>\n                    <mml:mover>\n                      <mml:mrow>\n                        <mml:mi>t<\/mml:mi>\n                      <\/mml:mrow>\n                      <mml:mrow>\n                        <mml:mo>\u00af<\/mml:mo>\n                      <\/mml:mrow>\n                    <\/mml:mover>\n                  <\/mml:mrow>\n                <\/mml:math><\/jats:alternatives><\/jats:inline-formula> pairs produced in hadron collisions. The method would allow to extract the individual fractions of <jats:inline-formula><jats:alternatives><jats:tex-math>$$t_L \\bar{t}_L$$<\/jats:tex-math><mml:math xmlns:mml=\"http:\/\/www.w3.org\/1998\/Math\/MathML\">\n                  <mml:mrow>\n                    <mml:msub>\n                      <mml:mi>t<\/mml:mi>\n                      <mml:mi>L<\/mml:mi>\n                    <\/mml:msub>\n                    <mml:msub>\n                      <mml:mover>\n                        <mml:mrow>\n                          <mml:mi>t<\/mml:mi>\n                        <\/mml:mrow>\n                        <mml:mrow>\n                          <mml:mo>\u00af<\/mml:mo>\n                        <\/mml:mrow>\n                      <\/mml:mover>\n                      <mml:mi>L<\/mml:mi>\n                    <\/mml:msub>\n                  <\/mml:mrow>\n                <\/mml:math><\/jats:alternatives><\/jats:inline-formula>, <jats:inline-formula><jats:alternatives><jats:tex-math>$$t_R {\\bar{t}}_R$$<\/jats:tex-math><mml:math xmlns:mml=\"http:\/\/www.w3.org\/1998\/Math\/MathML\">\n                  <mml:mrow>\n                    <mml:msub>\n                      <mml:mi>t<\/mml:mi>\n                      <mml:mi>R<\/mml:mi>\n                    <\/mml:msub>\n                    <mml:msub>\n                      <mml:mover>\n                        <mml:mrow>\n                          <mml:mi>t<\/mml:mi>\n                        <\/mml:mrow>\n                        <mml:mrow>\n                          <mml:mo>\u00af<\/mml:mo>\n                        <\/mml:mrow>\n                      <\/mml:mover>\n                      <mml:mi>R<\/mml:mi>\n                    <\/mml:msub>\n                  <\/mml:mrow>\n                <\/mml:math><\/jats:alternatives><\/jats:inline-formula>, <jats:inline-formula><jats:alternatives><jats:tex-math>$$t_L {\\bar{t}}_R$$<\/jats:tex-math><mml:math xmlns:mml=\"http:\/\/www.w3.org\/1998\/Math\/MathML\">\n                  <mml:mrow>\n                    <mml:msub>\n                      <mml:mi>t<\/mml:mi>\n                      <mml:mi>L<\/mml:mi>\n                    <\/mml:msub>\n                    <mml:msub>\n                      <mml:mover>\n                        <mml:mrow>\n                          <mml:mi>t<\/mml:mi>\n                        <\/mml:mrow>\n                        <mml:mrow>\n                          <mml:mo>\u00af<\/mml:mo>\n                        <\/mml:mrow>\n                      <\/mml:mover>\n                      <mml:mi>R<\/mml:mi>\n                    <\/mml:msub>\n                  <\/mml:mrow>\n                <\/mml:math><\/jats:alternatives><\/jats:inline-formula> and <jats:inline-formula><jats:alternatives><jats:tex-math>$$t_R {\\bar{t}}_L$$<\/jats:tex-math><mml:math xmlns:mml=\"http:\/\/www.w3.org\/1998\/Math\/MathML\">\n                  <mml:mrow>\n                    <mml:msub>\n                      <mml:mi>t<\/mml:mi>\n                      <mml:mi>R<\/mml:mi>\n                    <\/mml:msub>\n                    <mml:msub>\n                      <mml:mover>\n                        <mml:mrow>\n                          <mml:mi>t<\/mml:mi>\n                        <\/mml:mrow>\n                        <mml:mrow>\n                          <mml:mo>\u00af<\/mml:mo>\n                        <\/mml:mrow>\n                      <\/mml:mover>\n                      <mml:mi>L<\/mml:mi>\n                    <\/mml:msub>\n                  <\/mml:mrow>\n                <\/mml:math><\/jats:alternatives><\/jats:inline-formula> pairs with a fit to data, where <jats:italic>L<\/jats:italic>,\u00a0<jats:italic>R<\/jats:italic> refer to the polarisation along any axis. These polarisation fractions have not been independently measured at present. Secondarily, the method also provides the net polarisation of <jats:italic>t<\/jats:italic> and <jats:inline-formula><jats:alternatives><jats:tex-math>$${\\bar{t}}$$<\/jats:tex-math><mml:math xmlns:mml=\"http:\/\/www.w3.org\/1998\/Math\/MathML\">\n                  <mml:mover>\n                    <mml:mrow>\n                      <mml:mi>t<\/mml:mi>\n                    <\/mml:mrow>\n                    <mml:mrow>\n                      <mml:mo>\u00af<\/mml:mo>\n                    <\/mml:mrow>\n                  <\/mml:mover>\n                <\/mml:math><\/jats:alternatives><\/jats:inline-formula>, as well as their spin correlation for arbitrary axes.<\/jats:p>","DOI":"10.1140\/epjc\/s10052-022-10063-z","type":"journal-article","created":{"date-parts":[[2022,2,12]],"date-time":"2022-02-12T16:02:28Z","timestamp":1644681748000},"update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":7,"title":["A template method to measure the $$t {\\bar{t}}$$ polarisation"],"prefix":"10.1140","volume":"82","author":[{"given":"J. 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