No one can predict how things will go for any individual, but your daughter’s strong academic qualifications will very likely merit careful consideration in the first admissions read. Beyond that, it is impossible to say.
A single publication in a…if I have this correctly…a journal or journal issue for high school students, even with top grades and test scores, is unlikely to place an applicant into an Academic 1 rating, which about only about 0.4% of all applicants to Harvard manage to get. Even among Academic 1s, only 2 out of 3 are admitted.
But, along with exceptional grades and test scores, high school research helps to cement a solid Academic 2 rating as long as teacher recommendations offer confirming information. In recent history, Academic 2s compose approximately 40% of those who apply and is the typical rating category of those admitted (which is suggestive but not predictive of what will be the case this year)…but it is also the most common rating of those waitlisted or rejected.
Good luck!