Short answer. Yes, as between the partners themselves. Article 1832 provides that dissolution terminates a partner's authority to act for the partnership when the dissolution is not caused by a partner's act, insolvency, or death. Since your dissolution had none of those causes, that authority ends immediately among the partners, apart from what winding up still requires.
What the law says
Except so far as may be necessary to wind up partnership affairs or to complete transactions begun but not then finished, dissolution terminates all authority of any partner to act for the partnership: (1) With respect to the partners, (a) When the dissolution is not by the act, insolvency or death of a partner
Civil Code, Article 1832 — Effect of Dissolution on Authority. Read the full provision →
The immediate-termination rule for this cause of dissolution
Article 1832 sets separate rules depending on what caused the dissolution, and your situation falls into the more straightforward one. As between the partners, dissolution terminates all authority of any partner to act for the partnership when the dissolution is not by the act, insolvency or death of a partner. Since your dissolution arose from something else entirely, none of those three causes, this is the rule that governs your partnership. As far as the partners' own dealings with each other are concerned, the authority to act for the partnership ends the moment dissolution happens.
Why this cause of dissolution gets a cleaner cutoff
Article 1832 treats dissolution caused by a partner's act, death, or insolvency differently, because those events can happen without every partner immediately knowing about them, which is why Article 1833 separately addresses liability among partners who acted without knowledge of that kind of dissolution. When the dissolution has nothing to do with any partner personally, that complication does not arise the same way. All the partners are presumed to be equally aware that the triggering event occurred, so there is no need for the softer, knowledge-dependent rule that applies to the other category of causes.
Winding up is still an exception to the cutoff
The termination of authority is not absolute even in your situation. Article 1832 opens with a qualification that applies across the board: authority ends "except so far as may be necessary to wind up partnership affairs or to complete transactions begun but not then finished." So even though your dissolution cuts off ordinary authority immediately as between the partners, whatever authority is genuinely needed to close out the partnership's existing business, collecting debts, settling accounts, and finishing transactions already underway, still continues until that winding-up work is done.
What this means for your partners' dealings with each other
In practical terms, once your partnership dissolved for a reason unrelated to any partner's act, death, or insolvency, no partner should be treating the old authority to act for the partnership as still available for new, ordinary business as between the partners themselves. Anything beyond winding up the existing affairs and completing what was already begun falls outside what this article still permits, and a partner who acts as though nothing changed is stepping outside the authority the law recognizes in this situation.